A gimbal module
By using a bottom-mounted gimbal module design, the problems of insufficient stabilization angle and increased size of image sensor and optical lens in existing OIS technology are solved, achieving large-angle stabilization and module miniaturization, thus improving shooting stability and clarity.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2026-01-05
- Publication Date
- 2026-04-07
AI Technical Summary
Existing OIS technology has insufficient stabilization angle when the user is moving significantly, and the increased size of the image sensor and optical lens makes it difficult to adapt to the design requirements of the limited space inside electronic devices.
The gimbal module adopts a bottom-mounted drive design. By setting up the chip circuit board and the middle frame structure, it can achieve large-angle anti-shake function, while reducing the module size and avoiding interference between the chip circuit board and the middle frame during movement.
It achieves large-angle image stabilization within a limited space, ensuring the stability and reliability of the drive, meeting the needs of miniaturization, and improving the stability and clarity of the captured images.
Smart Images

Figure CN121486668B_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the field of camera modules, in particular to a gimbal module. BACKGROUND
[0002] When a user holds an electronic device such as a mobile phone to take a picture, the picture taken is prone to be blurred or ghosted due to hand shaking. A core problem is that it is difficult for the user to hold the device absolutely steadily, and there is bound to be slight shaking. To improve this problem, camera modules are usually equipped with optical image stabilization (OIS) components. The principle of optical image stabilization is to detect the direction of device shaking through sensors such as gyroscopes, and to drive the lens to move in the opposite direction for optical compensation, thereby improving the clarity of the picture.
[0003] However, when the user is in a large motion state (such as running or cycling), the existing OIS technology may not be able to completely offset the shaking. At the same time, as the demand for imaging quality increases, the size of the photosensitive chip continues to increase, and in particular, when the image surface size of the photosensitive chip rises to 1 inch, the volume and weight of the optical lens also increase accordingly, making it difficult to adapt to the design requirements of the limited internal space of the electronic device.
[0004] Therefore, how to further increase the size of the photosensitive chip and the angle of optical image stabilization without increasing the size of the camera module, to meet the user's shooting needs in complex motion scenarios, has become an important research direction. SUMMARY
[0005] One or more embodiments of the present application provide a gimbal module to solve or at least partially alleviate the problem of limited anti-shake angle of the existing OIS technology and the difficulty of increasing the size of the photosensitive chip and the optical lens to adapt to the limited space inside the electronic device.
[0006] An object of the present application is to provide a bottom-driven gimbal module that not only realizes a large-angle anti-shake function of the gimbal component, but also reduces the size of the gimbal module to meet the future trend of miniaturization.
[0007] An object of the present application is to provide a bottom-driven gimbal module that, through the structural design of the chip circuit board and the intermediate frame, meets the driving requirements in different directions in a limited space while avoiding interference between the chip circuit board and the intermediate frame during tilt anti-shake movement, ensuring the stability and reliability of the driving.
[0008] One object of the present application is to provide a gimbal module, comprising: a base; an intermediate frame movably arranged on the base; an imaging assembly defining an optical axis, the imaging assembly movably arranged on the intermediate frame, the imaging assembly comprising a photosensitive assembly, wherein the photosensitive assembly comprises a photosensitive chip and a chip circuit board, the chip circuit board comprising a first board body, a second board body and a flexible board body connecting the two, the photosensitive chip being arranged on the first board body and electrically connected thereto, the second board body being arranged on the base; wherein the first board body comprises a side edge, the flexible board body comprises an oblique extension connected to the first board body, the oblique extension and the side edge of the first board body form an angle less than 90°; when the photosensitive chip tilts around a direction perpendicular to the optical axis, the oblique extension tilts up along the optical axis.
[0009] As a preferred, the intermediate frame comprises a frame side wall and a frame corner between two adjacent frame side walls, the first board body further comprises a corner between two adjacent side edges, the oblique extension is close to the corner of the first board body; along the optical axis direction, the projection of the oblique extension and the projection of the frame corner do not overlap.
[0010] As a preferred, when the oblique extension tilts up to the highest point, the oblique extension does not contact the frame side wall and the frame corner; when the oblique extension tilts up to the lowest point, the oblique extension does not contact the base.
[0011] As a preferred, at least one of the frame side walls of the intermediate frame has a protruding portion protruding towards the image side, along the optical axis direction, the projection of the oblique extension and the projection of the protruding portion do not overlap.
[0012] As a preferred, the flexible board body comprises a first flexible structure and a second flexible structure, the first board body is arranged on the inner side of the second board body, the first flexible structure and the second flexible structure respectively extend on at least two sides between the first board body and the second board body; the first flexible structure comprises a first oblique extension, the second flexible structure comprises a second oblique extension, the first oblique extension and the second oblique extension are rotationally symmetrical.
[0013] As a preference, the side edges of the first plate body comprise a first inner edge, a second inner edge, a third inner edge and a fourth inner edge connected in sequence, and the first plate body further comprises a first inner corner between the first inner edge and the second inner edge, a second inner corner between the second inner edge and the third inner edge, a third inner corner between the third inner edge and the fourth inner edge, and a fourth inner corner between the fourth inner edge and the first inner edge; the second plate body comprises a first outer edge, a second outer edge, a third outer edge and a fourth outer edge connected in sequence, and the second plate body further comprises a first outer corner between the first outer edge and the second outer edge, a second outer corner between the second outer edge and the third outer edge, a third outer corner between the third outer edge and the fourth outer edge, and a fourth outer corner between the fourth outer edge and the first outer edge.
[0014] As a preference, the first inclined extension is connected with the second inner edge of the first plate body, the first inclined extension is close to the first inner corner, and the angle between the straight line where the first inclined extension is located and the straight line where the second inner edge is located is α, wherein 10°≤α<90°.
[0015] As a preference, the second inclined extension is connected with the fourth inner edge of the first plate body, the second inclined extension is close to the third inner corner, and the angle between the straight line where the second inclined extension is located and the straight line where the fourth inner edge is located is β, wherein 10°≤β<90°.
[0016] As a preference, the first inner corner, the second inner corner, the third inner corner and the fourth inner corner of the first plate body are respectively provided with a first bevel, a second bevel, a third bevel and a fourth bevel, the first inclined extension is connected with the first bevel, and the second inclined extension is connected with the third bevel.
[0017] As a preference, the angle between the straight line where the first inclined extension is located and the straight line where the second inner edge is located is an obtuse angle, and the angle between the straight line where the second inclined extension is located and the straight line where the fourth inner edge is located is an obtuse angle.
[0018] As a preference, the straight line where the first inclined extension is located is parallel to the straight line where the first bevel is located, and the straight line where the second inclined extension is located is parallel to the straight line where the third bevel is located.
[0019] As a preferred embodiment, the first flexible structure further includes a first bent extension and a first outlet end, the first bent extension connecting the first inclined extension and the first outlet end, and the first outlet end connecting the second plate; the second flexible structure further includes a second bent extension and a second outlet end, the second bent extension connecting the second inclined extension and the second outlet end, and the second outlet end connecting the second plate; wherein the first outlet end and the second outlet end are rotationally symmetrical.
[0020] As a preferred embodiment, the first inclined extension and the first outlet end are respectively connected to the opposite corners of the first plate and the second plate, and the second inclined extension and the second outlet end are respectively connected to the opposite corners of the first plate and the second plate; wherein, the first inclined extension is connected to the first inner corner of the first plate, the first outlet end is connected to the third outer corner of the second plate, the second inclined extension is connected to the third inner corner of the first plate, and the second outlet end is connected to the first outer corner of the second plate.
[0021] As a preferred embodiment, in the initial state, the bottom surface height of the first plate is higher than the bottom surface height of the second plate, and the height of the first flexible structure decreases from the first inclined extension to the first outlet end; the height of the second flexible structure decreases from the second inclined extension to the second outlet end.
[0022] As a preferred embodiment, the first bent extension includes a first connecting portion, a first bend portion, and a second connecting portion connected in sequence; the second bent extension further includes a third connecting portion, a second bend portion, and a fourth connecting portion connected in sequence; wherein, the first inclined extension is connected to the first connecting portion, the first bend portion is connected to the first connecting portion and the second connecting portion, and the first leading end is connected to the second connecting portion; the second inclined extension is connected to the third connecting portion, the second bend portion is connected to the adjacent third connecting portion and the fourth connecting portion, and the second leading end is connected to the fourth connecting portion.
[0023] As a preferred embodiment, the straight line containing the first bend is parallel to the straight line containing the second hypotenuse, and the straight line containing the second bend is parallel to the straight line containing the fourth hypotenuse.
[0024] As a preferred embodiment, the bottom surface of the frame sidewall has a beveled section that slopes toward the object and extends to the frame corner, such that the height of the frame corner is higher than the height of the frame sidewall.
[0025] Preferably, the distance from the protrusion to the base is less than the distance from the sidewall of the frame to the base, and the protrusion contacts the base to provide a stop when the intermediate frame tilts. Attached Figure Description
[0026] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings of the embodiments will be briefly introduced below. Obviously, the drawings described below only involve some embodiments of this application and are not intended to limit this application.
[0027] Figure 1 This is a schematic diagram of the structure of a gimbal module according to some embodiments of this application.
[0028] Figure 2 This is a cross-sectional view of a gimbal module according to some embodiments of this application.
[0029] Figure 3 An exploded view of a gimbal assembly according to some embodiments of this application.
[0030] Figure 4 This is a schematic diagram of the structure of a drive mechanism according to some other embodiments of this application.
[0031] Figure 5 Schematic diagrams of the structure of the fixing block, intermediate frame, movable carrier, and base according to some embodiments of this application.
[0032] Figure 6 Schematic diagram of the structure of a conductive component according to some embodiments of this application.
[0033] Figure 7 This is a schematic diagram of the structure of a chip circuit board according to some embodiments of this application.
[0034] Figure 8 This is a schematic diagram of the structure of a chip circuit board according to some other embodiments of this application.
[0035] Figure 9 This is a schematic diagram of the structure of a chip circuit board according to some other embodiments of this application.
[0036] Figure 10 This is a three-dimensional structural schematic diagram of a chip circuit board according to the first embodiment of the improved solution of this application.
[0037] Figure 11 This is a top view of the chip circuit board according to the first embodiment of the improved solution of this application.
[0038] Figure 12 This is a three-dimensional structural diagram of a chip circuit board according to a second embodiment of the improved solution of this application.
[0039] Figure 13 This is a top view of the chip circuit board according to the second embodiment of the improved solution of this application.
[0040] Figure 14 This is a schematic diagram of the structure of the fourth frame sidewall on the middle frame according to some embodiments of the improved scheme of this application.
[0041] Figure 15 This is a schematic diagram of the assembly of the fixed block, intermediate frame and movable carrier according to some embodiments of the improved scheme of this application.
[0042] Figure 16 This is a schematic diagram of the structure of a movable carrier sidewall with a stepped protrusion according to some embodiments of the improved scheme of this application.
[0043] Figure 17 This is an assembly diagram of the chip circuit board, intermediate frame, and active carrier according to the first embodiment of the improved solution of this application.
[0044] Figure 18 This is a schematic diagram of the assembly of the flexible plate, intermediate frame and movable carrier according to the second embodiment of the improved scheme of this application.
[0045] Figure 19 This is a schematic diagram of the structure in which the first magnetic attractor and the second magnetic attractor cooperate with each other in the middle frame of this application.
[0046] Figure 20 This is a schematic diagram of the structure in which the intermediate framework and the active carrier of this application cooperate.
[0047] Figure 21 This is a schematic diagram of the structure in which the first sensing element and the first sensing magnet located on the first side cooperate with each other in this application.
[0048] Figure 22 This is a schematic diagram of the structure in which the second sensing element and the second sensing magnet located on the second side cooperate with each other in this application.
[0049] In the diagram: 100, gimbal module; 101, top side; 102, bottom side; 103, first side; 104, second side; 105, third side; 106, fourth side;
[0050] 10. Imaging assembly; 11. Lens assembly; 12. Photosensitive assembly;
[0051] 121. Photosensitive chip; 122. Chip circuit board;
[0052] 1221, First plate; 12211, First inner edge; 122111, First inner corner; 12212, Second inner edge; 122121, Second inner corner; 12213, Third inner edge; 122131, Third inner corner; 12214, Fourth inner edge; 122141, Fourth inner corner; 12215, First hypotenuse; 12216, Second hypotenuse; 12217, Third hypotenuse; 12218, Fourth hypotenuse;
[0053] 1222, Second plate; 12221, First outer edge; 122211, First outer corner; 12222, Second outer edge; 122221, Second outer corner; 12223, Third outer edge; 122231, Third outer corner; 12224, Fourth outer edge; 122241, Fourth outer corner;
[0054] 1223. Flexible panel;
[0055] 12231, First flexible structure; 122311, First connecting end; 122321, First inclined extension; 122331, First connecting part; 122341, First bending part; 122351, Second connecting part; 122361, First bending area; 122371, First leading end;
[0056] 12232, Second flexible structure; 122312, Second connecting end; 122322, Second inclined extension; 122332, Third connecting part; 122342, Second bending part; 122352, Fourth connecting part; 122362, Second bending area; 122372, Second leading end;
[0057] 123. Filter element; 124. Filter element support;
[0058] 20. Gimbal assembly; 211. Housing;
[0059] 22. Base; 221. First base sidewall; 222. Second base sidewall; 223. Third base sidewall; 224. Fourth base sidewall;
[0060] 23. Movable carrier; 231. First carrier sidewall; 232. Second carrier sidewall; 233. Third carrier sidewall; 234. Fourth carrier sidewall; 235. First carrier extension arm; 2351. First carrier top surface; 2352. First carrier bottom surface; 237. Second carrier extension arm; 2371. Second carrier top surface; 2372. Second carrier bottom surface;
[0061] 24. Intermediate frame; 241. First frame sidewall; 242. Second frame sidewall; 2421. Protrusion; 24201. Straight edge section; 24202. Inclined edge section; 243. Third frame sidewall;
[0062] 244. Fourth frame sidewall; 2442. Stop; 245. First frame extension arm; 2451. First frame top surface; 2452. First frame bottom surface; 247. Second frame extension arm; 2471. Second frame top surface; 2472. Second frame bottom surface;
[0063] 25. Drive mechanism;
[0064] 251. First drive mechanism; 2511. First preload assembly; 2512. First actuation assembly; 25121. First piezoelectric vibrator; 25122. First friction head;
[0065] 252, Second drive mechanism; 2521, Second preload assembly; 2522, Second actuation assembly; 25221, Second piezoelectric vibrator; 25222, Second friction head;
[0066] 255, conductive component; 2551, first substrate; 2552, second substrate; 2553, conductive substrate;
[0067] 26. Support component; 261. First support part; 263. Third support part;
[0068] 27. Sensing component; 271. First sensing element; 272. First sensing magnet; 273. Second sensing element; 274. Second sensing magnet;
[0069] 28. Magnetic assemblies; 281. First magnetic component; 282. Second magnetic component; 283. Third magnetic component; 284. Fourth magnetic component;
[0070] 29. Fixing block; 291. First fixing sidewall; 292. Second fixing sidewall; 293. Third fixing sidewall; 294. Fourth fixing sidewall. Detailed Implementation
[0071] To make the objectives, technical solutions, and advantages of this application clearer, the technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings showing multiple embodiments according to this application. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. All other embodiments obtained by those skilled in the art based on the embodiments described in this application without creative effort will fall within the scope of protection of this application.
[0072] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used in the description of this application is for the purpose of describing specific embodiments only and is not intended to limit this application; the terms "comprising," "including," "having," "containing," etc., in the description, claims, and accompanying drawings of this application are open-ended terms. Therefore, "comprising," "including," or "having" refers to, for example, a method or apparatus having one or more steps or elements, but is not limited to having only these one or more elements. The terms "first," "second," etc., in the description, claims, or accompanying drawings of this application are used to distinguish different objects, not to describe a specific order or hierarchy. 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 indicated technical features. 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, unless otherwise stated, "a plurality of" means two or more.
[0073] In the description of this application, it should be understood that the terms "center", "lateral", "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used 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. Therefore, they should not be construed as limitations on this application.
[0074] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "attachment" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication 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.
[0075] In this application, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation can be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. Those skilled in the art will understand, explicitly and implicitly, that the implementations described in this application can be combined with other implementations.
[0076] As mentioned above, it should be emphasized that when the term "comprising / including" is used in this specification, it is used to explicitly indicate the presence of the stated feature, integer, step, or component, but does not exclude the presence or addition of one or more other features, integers, steps, components, or groups of features, integers, steps, or components. As used in this application, the singular forms "a," "an," and "the" also include the plural forms, unless the context clearly indicates otherwise.
[0077] The terms “a” and “an” used in this specification may mean one, but may also be used interchangeably with “at least one” or “one or more”. The term “about” generally means the mentioned value plus or minus 10%, or more specifically, plus or minus 5%. The term “or” used in the claims means “and / or” unless it is explicitly stated that it refers only to alternatives.
[0078] In this application, the term "and / or" 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, or B existing alone. Additionally, in this application, the character " / " generally indicates that the preceding and following related objects have an "or" relationship.
[0079] This application provides a gimbal module 100. For ease of description, the X-axis, Y-axis, and Z-axis are defined as coordinate axes of a spatial rectangular coordinate system. The Z-axis corresponds to the optical axis of the gimbal module 100, where light rays are incident and emitted along the optical axis. The X-axis corresponds to a first direction of the gimbal module 100, and the Y-axis corresponds to a second direction. The first and second directions are perpendicular to the optical axis and to each other. The above definitions of the optical axis, the first direction, the second direction, and the X-axis, Y-axis, and Z-axis apply to the content described below and are merely for the convenience of describing the positional or connection relationships between the components of the gimbal module 100 of this application, and do not limit this application.
[0080] During image stabilization, the gimbal module 100 primarily employs two compensation methods: translation and tilting. Translation compensation refers to the gimbal module 100 translating within a plane perpendicular to the optical axis to reduce the impact of shaking. Tilting compensation, on the other hand, involves the gimbal module 100 rotating in different directions to adjust the angle and reduce the effects of shaking.
[0081] Given a fixed amplitude of shaking, due to the large distance between the gimbal module 100 and the subject being photographed, the maximum stabilization angle provided by translation compensation is reduced due to its limited travel. Therefore, tilt compensation motion can achieve a larger stabilization angle compared to translation compensation motion. To meet users' stabilization needs in scenarios with large movements, the gimbal module 100 employs tilt compensation motion to achieve stabilization. For example, the tilt direction of the gimbal module 100 is opposite to the direction of device shaking, thereby compensating for the shaking.
[0082] In one example of this application, such as Figures 1-2 As shown, the gimbal module 100 includes an imaging component 10 and a gimbal component 20. The imaging component 10 is drivably disposed on the gimbal component 20, so that the gimbal component 20 can correspondingly adjust the attitude of the imaging component 10, thereby realizing the image stabilization function of the gimbal module 100. The imaging component 10 includes a lens component 11 and a photosensitive component 12, with the lens component 11 disposed on the photosensitive path of the photosensitive component 12. During the image stabilization process of the gimbal module 100, the gimbal component 20 drives the lens component 11 and the photosensitive component 12 to move simultaneously. This avoids changes in the relative position between the lens component 11 and the photosensitive component 12 that could affect the imaging effect. Because the lens component 11 and the photosensitive component 12 move synchronously, even with a large stabilization angle, the image quality and stabilization effect will not decrease at the image edges, nor will the image sharpness be affected, thus facilitating large-angle image stabilization. In one example of this application, the stabilization angle of the gimbal component 20 can be less than or equal to 6°.
[0083] Furthermore, the imaging assembly 10 itself can also have image stabilization functionality. For example, the lens assembly 11 and / or the photosensitive assembly 12 can be driven to move within a small range within the imaging assembly 10 to perform a certain amount of image stabilization compensation movement, thereby achieving the purpose of image stabilization. In one example of this application, the image stabilization angle of the imaging assembly 10 can be less than or equal to 2°.
[0084] In this application, the image stabilization function of the gimbal assembly 20 works in conjunction with the image stabilization function of the imaging assembly 10 itself to enable the gimbal module 100 to achieve optical image stabilization over a wider angle. This meets the needs of dealing with complex scenes or significant shaking during video shooting, thereby improving the stability and clarity of the captured image. In one example of this application, the image stabilization angle of the gimbal module 100 can be less than or equal to 8°.
[0085] In one example of this application, the lens assembly 11 includes an optical lens. The optical lens includes a lens barrel and a plurality of optical lenses mounted within the lens barrel along the optical axis. By designing the structure, shape, and number of the plurality of optical lenses, the optical lens can possess different characteristics such as wide-angle and telephoto. It is understood that the optical lens may also consist only of the plurality of optical lenses without a lens barrel, which would help reduce the size of the imaging assembly 10.
[0086] Furthermore, the lens assembly 11 also includes a lens driving device for driving the optical lens to move relative to the photosensitive assembly 12 to achieve focusing and / or image stabilization.
[0087] In one example of this application, the photosensitive component 12 includes a photosensitive chip 121, a chip circuit board 122, and multiple electronic components. The photosensitive chip 121 is used to receive ambient light collected by the lens assembly 11 for imaging and is electrically connected to a mobile electronic device through the chip circuit board 122. The photosensitive chip 121 includes photosensitive areas and non-photosensitive areas. The photosensitive chip 121 is electrically connected to the chip circuit board 122 through pads located in the non-photosensitive areas. For example, the photosensitive chip 121 is electrically connected to the chip circuit board 122 by wire bonding (gold wire bonding), soldering, FC (flip chip) process, or RDL (redistribution layer) technology. Multiple electronic components are disposed on and electrically connected to the chip circuit board 122.
[0088] Furthermore, the photosensitive assembly 12 also includes a filter element 123 and a filter element support 124. The filter element 123 is supported by the filter element support 124 on the photosensitive path of the photosensitive chip 121 and is used to filter the imaging light entering the photosensitive chip 121.
[0089] Furthermore, the photosensitive assembly 12 also includes a chip driving device for driving the photosensitive chip 121 to move relative to the lens assembly 11 to achieve focusing and / or image stabilization functions.
[0090] It is understandable that since both the gimbal assembly 20 and the imaging assembly 10 are equipped with driving devices to achieve image stabilization, this presents a challenge to reducing the size of the gimbal module 100. Therefore, in this application, in addition to achieving large-angle image stabilization of the gimbal module 100, it is also possible to reduce the size of the gimbal module 100 to meet the future trend of miniaturization.
[0091] For example, in one embodiment of this application, a molding process is used to integrally form the photosensitive chip 121 and the chip circuit board 122 to reduce the size of the imaging component 10, thereby reducing the size of the gimbal module 100. This includes the lateral dimensions of the imaging component 10 and the gimbal module 100 defined by the X and Y axes, and the height dimension defined by the Z axis.
[0092] like Figures 1-22 As shown, one or more embodiments of this application disclose a gimbal module 100, including: a base 22; a middle frame 24, the middle frame 24 being movably disposed on the base 22; and an imaging component 10, the imaging component 10 defining an optical axis, the imaging component 10 being movably disposed on the middle frame 24, the imaging component 10 including a photosensitive component 12, wherein the photosensitive component 12 includes a photosensitive chip 121 and a chip circuit board 122, the chip circuit board 122 including a first board body 1221 and a second board body 1222. 222 and a flexible plate 1223 connecting the two, the photosensitive chip 121 is disposed on the first plate 1221 and electrically connected thereto, and the second plate 1222 is disposed on the base 22; wherein, the first plate 1221 includes a side, the flexible plate 1223 includes an inclined extension connected to the first plate 1221, and the angle between the inclined extension and the side of the first plate 1221 is less than 90°; when the photosensitive chip 121 tilts around a direction perpendicular to the optical axis, the inclined extension tilts up along the optical axis.
[0093] This application achieves multiple technical advantages by optimizing the structural design of the flexible plate 1223 and the intermediate frame 24 of the chip circuit board 122: First, by using the deformable flexible plate 1223 to connect the movable first plate 1221 and the fixed second plate 1222, the deformable characteristics of the flexible plate 1223 can effectively absorb the displacement stress of the first plate 1221 during the image stabilization movement, significantly reducing the reaction force of the flexible plate 1223 on the first plate 1221, avoiding interference of the reaction force with the tilting motion accuracy of the imaging component, and ensuring the stability of the image stabilization drive; Second, if the connection part between the flexible plate 1223 and the first plate 1221 directly forms a right angle corner, The corner will tilt up and down with the tilting movement of the first plate 1221, thus becoming the lowest or highest point of the flexible plate 1223. When the corner is at its highest point, this position is close to the bottom surface of the intermediate frame 24, making it very easy for it to mechanically interfere with the intermediate frame 24 during movement. When the corner is at its lowest point, this position is also very easy for it to mechanically interfere with the base 22 during movement. However, this application eliminates the traditional right-angle corner structure between the flexible plate 1223 and the first plate 1221 by providing an inclined extension on the flexible plate 1223, transforming the originally interference-prone right-angle corner area into a smoothly transitioned inclined extension, thus structurally avoiding the risk of interference. Moreover, compared with the right-angle corner structure, the inclined extension is not only simpler to manufacture, but also increases the connection area between the inclined extension and the first plate 1221, improving the reliability of the chip circuit board 122.
[0094] In one example of this application, such as Figure 1 and Figure 3As shown, one or more embodiments of this application disclose a gimbal assembly 20, including: a movable carrier 23 for carrying an imaging assembly 10, the imaging assembly 10 having an optical axis along its photosensitive path; a middle frame 24, on which the movable carrier 23 is movably disposed; a base 22, on which the middle frame 24 is movably disposed; and a first drive mechanism 251, including a first pre-pressure assembly 2511 and a first actuation assembly 2512 connected to each other, the first pre-pressure assembly 2511 being fixed to the top of the middle frame 24, the first pre-pressure assembly 2511 applying a pre-pressure along the optical axis toward the movable carrier 23 to the first actuation assembly 2512, so that the first actuation assembly 2512 and the movable carrier 23 move along the optical axis. The first actuation component 2512 drives the movable carrier 23 to tilt relative to the intermediate frame 24 about a first direction, maintaining frictional contact along the optical axis. The second drive mechanism 252 includes a second pre-pressure component 2521 and a second actuation component 2522 connected to each other. The second pre-pressure component 2521 is fixed to the top of the base 22 and applies a pre-pressure along the optical axis toward the intermediate frame 24 to the second actuation component 2522, so that the first actuation component 2512 and the movable carrier 23 maintain frictional contact along the optical axis, and the second actuation component 2522 drives the intermediate frame 24 to tilt relative to the base 22 about a second direction. The first direction and the second direction are perpendicular to the optical axis and perpendicular to each other.
[0095] In one example of this application, such as Figures 4-6 , Figure 21 and Figure 22As shown, a housing 211; a base 22, which is interlocked with the housing 211 to accommodate an imaging component 10, the imaging component 10 defining an optical axis; a fixing block 29, which is disposed between the housing 211 and the base 22 along the optical axis and fixed to the base 22; a movable carrier 23, which is movably disposed within an intermediate frame 24 and is used to support the imaging component 10; an intermediate frame 24, which is movably disposed between the fixing block 29 and the base 22; and a second drive mechanism 252, which is disposed at the bottom of the intermediate frame 24. The second drive mechanism 252 includes a second preload component 2521 and a second actuation component 2522 interconnected along the optical axis. The second preload component 2521 is fixed between the base 22 and the fixing block 29 to generate a force towards the intermediate frame 211. The pre-pressure of 4 causes the second actuation component 2522 to maintain frictional contact with the bottom of the intermediate frame 24 under the action of the pre-pressure, thereby driving the intermediate frame 24 to tilt about the second direction; the first drive mechanism 251 is disposed at the bottom of the movable carrier 23. The first drive mechanism 251 includes a first pre-pressure component 2511 and a first actuation component 2512 connected to each other along the optical axis. The first pre-pressure component 2511 is fixed to the bottom of the intermediate frame 24. The first pre-pressure component 2511 applies a pre-pressure along the optical axis toward the movable carrier 23 to the first actuation component 2512, so that the first actuation component 2512 and the movable carrier 23 maintain frictional contact along the optical axis. The first actuation component 2512 drives the movable carrier 23 to tilt about the first direction relative to the intermediate frame 24.
[0096] Furthermore, the movable carrier 23 has an opening penetrating in the optical axis direction. The imaging component 10 is fixed within the opening of the movable carrier 23. The movable carrier 23 is movably disposed on the intermediate frame 24, which is movably disposed on the base 22. The movable carrier 23 can drive the imaging component 10 to tilt around a first direction, and the intermediate frame 24 can drive the movable carrier 23 and the imaging component 10 to tilt around a second direction. The tilting motion can be understood as rotational motion around the first and second directions.
[0097] Furthermore, along the first or second direction, the fixed block 29, the intermediate frame 24, the movable carrier 23, and the imaging component 10 are nested together from the outside to the inside, and the fixed block 29 presses down on the intermediate frame 24 from the top side 101, and the intermediate frame 24 presses down on the movable carrier 23 from the top side 101. That is, the fixed block 29, the intermediate frame 24, and the movable carrier 23 form a structure that presses down on each other in sequence, so as to improve the overall structural compactness of the gimbal module 100.
[0098] In some embodiments of this application, the drive mechanism 25 includes at least two drive structures, which are disposed on adjacent sides of the gimbal module 100 to achieve tilt stabilization of the gimbal module 100 in two directions.
[0099] More specifically, at least one drive structure rubs against the carrier extension arm of the movable carrier 23 from the bottom side 102 to drive the movable carrier 23 to tilt about a first direction, and at least one drive structure rubs against the frame extension arm of the intermediate frame 24 from the bottom side 102 to drive the intermediate frame 24 to tilt about a second direction.
[0100] Correspondingly, the carrier extension arm of the movable carrier 23 extends along the first direction, and the frame extension arm of the intermediate frame 24 extends along the second direction. The carrier extension arm and the frame extension arm are disposed on adjacent sides of the periphery of the gimbal module 100 to ensure that the tilting and anti-shake movements in the two directions are independent of each other. In the first direction, the extension length of the carrier extension arm is not greater than the width of the groove of the fixing block 29 located on the same side; in the second direction, the extension length of the frame extension arm is not greater than the width of the groove of the fixing block 29 located on the same side, so as to ensure that the carrier extension arm or the frame extension arm is fully accommodated in the receiving cavity, further reducing the lateral dimension of the gimbal module 100.
[0101] In one example of this application, the number of drive mechanisms 25 is at least two, including a first drive mechanism 251 and a second drive mechanism 252. The first drive mechanism 251 is disposed between the movable carrier 23 and the intermediate frame 24, and is fixed between the fixing block 29 and the base 22 and maintains frictional contact with the movable carrier 23 to drive the movable carrier 23 to tilt relative to the intermediate frame 24 about a first direction. The second drive mechanism 252 is disposed between the intermediate frame 24 and the fixing block 29, and is fixed between the fixing block 29 and the base 22 and maintains frictional contact with the intermediate frame 24 to drive the intermediate frame 24 to tilt relative to the base 22 about a second direction.
[0102] The first drive mechanism 251 and the second drive mechanism 252 are disposed on adjacent sides of the gimbal module 100 to achieve tilt stabilization of the gimbal module 100 in two directions. It should be understood that the gimbal module 100 includes a top side 101 near the subject, a bottom side 102 opposite to the top side 101, and a peripheral side located between the top side 101 and the bottom side 102. The peripheral side includes a first side 103, a second side 104, a third side 105, and a fourth side 106 arranged sequentially in a clockwise direction. That is, the first drive mechanism 251 and the second drive mechanism 252 are disposed on adjacent sides of the gimbal assembly 20.
[0103] Furthermore, the positions of at least two drive mechanisms 25 can be adjusted and set according to the number of drive mechanisms 25, as long as the drive function can be achieved. For example, the number of first drive mechanisms 251 can be one or two; the number of second drive mechanisms 252 can be one or two.
[0104] In one example of this application, the drive mechanism 25 includes a pre-compression component 253 and an actuation component 254. The pre-compression component 253 is connected to a surface of the actuation component 254, and can provide pre-pressure to the actuation component 254. By fixing the pre-compression component 253 to the fixed block 29 or the base 22, the actuation component 254 is kept in contact with the moving part and in frictional contact. The actuation component 254 is located between the pre-compression component 253 and the moving part, and provides a driving force to the moving part through its own deformation to drive the moving part to move. It should be understood that the fixed part is a relatively stationary element during the movement, and the moving part is a relatively moving element during the movement. For example, when the moving carrier 23 tilts about a first direction, the moving carrier 23 is the moving part, and the intermediate frame 24 is the fixed part; when the intermediate frame 24 tilts about a second direction, the intermediate frame 24 is the moving part, and the fixed block 29 and the base 22 are both fixed parts.
[0105] The fixing block 29 includes fixing sidewalls, specifically implemented as a first fixing sidewall 291, a second fixing sidewall 292, a third fixing sidewall 293, and a fourth fixing sidewall 294 arranged along its periphery; the movable carrier 23 includes carrier sidewalls, specifically implemented as a first carrier sidewall 231, a second carrier sidewall 232, a third carrier sidewall 233, and a fourth carrier sidewall 234 arranged along its periphery; the intermediate frame 24 includes frame sidewalls, specifically implemented as a first frame sidewall 241, a second frame sidewall 242, a third frame sidewall 243, and a fourth frame sidewall 244 arranged along its periphery; the base 22 includes base sidewalls, specifically implemented as a first base sidewall 221, a second base sidewall 222, a third base sidewall 223, and a fourth base sidewall 224 arranged along its periphery. Among them, the first carrier sidewall 231, the first frame sidewall 241, the first base sidewall 221 and the first fixed sidewall 291 are opposite to each other along the first direction; the second carrier sidewall 232, the second frame sidewall 242, the second base sidewall 222 and the second fixed sidewall 292 are opposite to each other along the second direction; the third carrier sidewall 233, the third frame sidewall 243, the third base sidewall 223 and the third fixed sidewall 293 are opposite to each other along the first direction; and the fourth carrier sidewall 234, the fourth frame sidewall 244, the fourth base sidewall 224 and the fourth fixed sidewall 294 are opposite to each other along the second direction.
[0106] In some specific examples, the preload component 253 is implemented as a planar spring structure, which can make the actual motion state of the actuation component 254 closer to the design value, reduce the influence of the external environment on the actuation component 254, and also prevent the vibration or piezoelectric actuation of the actuation component 254 from being transmitted to the fixing component, causing the fixing component to vibrate or piezoelectric actuate, thereby affecting the stability of the structure.
[0107] In other specific examples, the preload component 253 is implemented as a bent spring structure, which can reduce the elastic coefficient of the deformable part 2533 so that the fluctuation of the preload when the deformable part 2533 acts on the actuating component 254 is smaller, thereby making the friction between the actuating component 254 and the moving part more uniform and consistent.
[0108] In some specific examples, the actuation component 254 includes a piezoelectric vibrator 2541 and a friction head 2542, wherein the friction head 2542 and the preload component 253 are located on opposite sides of the piezoelectric vibrator 2541. The friction head 2542 abuts against the moving part under the action of the preload component 253. The high-frequency, low-amplitude vibration of the piezoelectric vibrator 2541 causes the friction head 2542 to move, and the friction between the friction head 2542 and the moving part drives the moving part to move. In other words, the driving force can be understood as the frictional force applied by the friction head 2542 to the moving part.
[0109] In some specific examples, the piezoelectric oscillator 2541 is a substrate exhibiting the inverse piezoelectric effect and contracting or expanding according to the polarization direction and the electric field direction. It can be made of piezoelectric ceramic material or piezoelectric single crystal material. The piezoelectric oscillator 2541 can be a single-layer ceramic body or a single-layer single crystal, or it can be a multi-layer ceramic body or a multi-layer single crystal. The piezoelectric oscillator 2541 can be used by polarizing the substrate in the thickness direction of single crystal, polycrystalline ceramic, polymer piezoelectric ceramic, etc. The inverse piezoelectric effect refers to the mechanical deformation that occurs in the dielectric when an electric field is applied in the polarization direction of the dielectric to generate a potential difference. The piezoelectric oscillator 2541 has the function of ultrasonic oscillation, that is, it realizes oscillating reciprocating motion or elliptical motion on a specifically set electrode layer, thereby driving the friction head 2542 to oscillate reciprocating motion or elliptical motion, and then driving the moving part to move through the friction between the friction head 2542 and the moving part.
[0110] In some specific examples, the number of friction heads 2542 may be one, or two or more. The friction head 2542 and the piezoelectric vibrator 2541 may be implemented as an integral structure or as a detachable structure. More specifically, the friction head 2542 may have an arc surface to allow point friction between the friction head 2542 and the moving part; the friction head 2542 may also have a flat surface to allow surface friction between the friction head 2542 and the moving part.
[0111] In some specific examples, the friction head 2542 is made of wear-resistant materials, such as various high-hardness wear-resistant ceramic materials, such as alumina, zirconium oxide, silicon carbide ceramics, or high wear-resistant metal materials, carbon fiber materials, or composite materials of ceramics, metal particles and polymers, etc., in order to improve the wear resistance of the friction head 2542, which is beneficial to improve the friction between the moving parts and the friction head 2542, which is beneficial to improve the driving efficiency, and due to the wear resistance, it is beneficial to extend the service life of the friction head 2542.
[0112] In one example of this application, the drive mechanism 25 may further include a friction plate, which is disposed between the friction head 2542 and the movable part, so that frictional contact occurs between the friction head 2542 and the friction plate, thereby driving the movable part to move. The friction plate may be made of a metal oxide plate such as zirconium oxide or alumina to increase the friction between the friction head 2542 and the movable part. The friction plate may be integrally formed with the movable part, for example, by using an embedded molding process to integrally form the friction plate and the movable part. Alternatively, the friction plate may be a separate structure disposed on the movable part, for example, by using an adhesive to fix the friction plate to the movable part.
[0113] In one example of this application, the first driving mechanism 251 includes a first preload component 2511 and a first actuation component 2512. The first actuation component 2512 includes a first piezoelectric vibrator 25121 and a first friction head 25122. That is, the first driving mechanism 251 includes a first preload component 2511, a first friction head 25122, and a first piezoelectric vibrator 25121 arranged along the optical axis. The second driving mechanism 252 includes a second preload component 2521 and a second actuation component 2522. The second actuation component 2522 includes a second friction head 25222 and a second piezoelectric vibrator 25221. That is, the second driving mechanism 252 includes a second preload component 2521, a second friction head 25222, and a second piezoelectric vibrator 25221. The first preload assembly 2511 is connected to the first piezoelectric vibrator 25121 to apply a preload to the first friction head 25122 toward the movable carrier 23. Under the action of the preload, the first friction head 25122 maintains frictional contact with the movable carrier 23 to drive the movable carrier 23 to tilt around a first direction. The second preload assembly 2521 is connected to the second piezoelectric vibrator 25221 to apply a preload to the second friction head 25222 toward the intermediate frame 24. The second friction head 25222 maintains frictional contact with the intermediate frame 24 to drive the intermediate frame 24 to drive the movable carrier 23 to tilt around a second direction.
[0114] In one example of this application, the first pre-pressure component 2511 and the first actuation component 2512 are arranged vertically along the optical axis, enabling the first drive mechanism 251 to drive the tilting movement of the movable carrier 23 from the top side 101 or the bottom side 102. The second pre-pressure component 2521 and the second actuation component 2522 are arranged vertically along the optical axis, enabling the second drive mechanism 252 to drive the tilting movement of the intermediate frame 24 from the top side 101 or the bottom side 102. The vertical arrangement of the first drive mechanism 251 and the second drive mechanism 252 from the top side 101 or the bottom side 102 can make full use of the height space of the gimbal assembly 20, avoid increasing the lateral dimension of the gimbal assembly 20, and facilitate the miniaturization of the gimbal module 100. Moreover, it is also simpler to install the first pre-pressure component 2511 and the second pre-pressure component 2521 from the top side 101 or the bottom side 102 onto the intermediate frame 24 and the base 22, reducing the assembly difficulty.
[0115] In some specific examples, the first pre-pressure component 2511 is fixed to the top of the first frame sidewall 241, and the first pre-pressure component 2511 is connected to the first piezoelectric vibrator 25121 such that the first friction head 25122 faces the first carrier sidewall 231. The first pre-pressure component 2511 generates a first pre-pressure parallel to the optical axis, so that the first friction head 25122 maintains frictional contact with the top of the first carrier sidewall 231, thereby driving the movable carrier 23 to tilt about the first direction.
[0116] The second preload assembly 2521 is fixed to the top of the second base sidewall 222. The second preload assembly 2521 is connected to the second piezoelectric vibrator 25221 so that the second friction head 25222 faces the second frame sidewall 242. The second preload assembly 2521 generates a second preload parallel to the optical axis, so that the second friction head 25222 maintains frictional contact with the top of the second frame sidewall 242, thereby driving the intermediate frame 24 to tilt about the second direction.
[0117] In other specific examples, the first pre-pressure component 2511 is fixed to the bottom of the first frame sidewall 241, and the first pre-pressure component 2511 is connected to the first piezoelectric vibrator 25121 such that the first friction head 25122 faces the first carrier sidewall 231. The first pre-pressure component 2511 generates a first pre-pressure parallel to the optical axis, so that the first friction head 25122 maintains frictional contact with the bottom of the first carrier sidewall 231, thereby driving the movable carrier 23 to tilt about the first direction.
[0118] The second preload assembly 2521 is fixed to the bottom of the second base sidewall 222. The second preload assembly 2521 is connected to the second piezoelectric vibrator 25221 so that the second friction head 25222 faces the second frame sidewall 242. The second preload assembly 2521 generates a second preload parallel to the optical axis, so that the second friction head 25222 maintains frictional contact with the bottom of the second frame sidewall 242, thereby driving the intermediate frame 24 to tilt around the second direction.
[0119] It should be understood that the first driving mechanism 251 drives from the top side 101 and the second driving mechanism 252 drives from the top side 101, meaning that both the first driving mechanism 251 and the second driving mechanism 252 are top-mounted piezoelectric driving mechanisms; or, the first driving mechanism 251 drives from the bottom side 102 and the second driving mechanism 252 drives from the bottom side 102, meaning that both the first driving mechanism 251 and the second driving mechanism 252 are bottom-mounted piezoelectric driving mechanisms. This not only improves the stability of the gimbal module 100 during the driving process and reduces the risk of the imaging module tipping over during movement, but also simplifies the structure of the gimbal module 100, making full use of the height space of the gimbal assembly 20, reducing the size of the gimbal module 100, and facilitating the miniaturization of the gimbal module 100. Furthermore, it can optimize the assembly process of the gimbal module 100, reduce assembly difficulty, further reduce assembly tolerances, and increase assembly consistency.
[0120] In some specific examples, when the first drive mechanism 251 has a first friction head 25122, the vibration of the first piezoelectric vibrator 25121 is transmitted to the movable carrier 23 through the first friction head 25122. During the vibration cycle of the first piezoelectric vibrator 25121, the first friction head 25122 makes intermittent or continuous frictional contact with the movable carrier 23 to drive the movable carrier 23 to tilt about a first direction.
[0121] In some specific examples, when the second drive mechanism 252 has a second friction head 25222, the vibration of the second piezoelectric vibrator 25221 is transmitted to the intermediate frame 24 through the second friction head 25222. During the vibration cycle of the second piezoelectric vibrator 25221, the second friction head 25222 makes intermittent frictional contact with the intermediate frame 24 to drive the intermediate frame 24 to tilt about a second direction.
[0122] In some specific examples, when the first drive mechanism 251 has two or more first friction heads 25122, the two first friction heads 25122 alternately make frictional contact with the movable carrier 23. For example, when one of the two first friction heads 25122 is in contact with the movable carrier 23, the vibration of the first piezoelectric vibrator 25121 is transmitted to the movable carrier 23 through the first friction head 25122, driving the movable carrier 23 to tilt about a first direction. At this time, the other of the two first friction heads 25122 is in a non-contact state with the movable carrier 23. During the vibration cycle of the first drive mechanism 251, the two first friction heads 25122 alternately make contact with the movable carrier 23, so that after one first friction head 25122 completes the driving action, the other first friction head 25122 continues to complete the driving action, and the two first friction heads 25122 cooperate to drive the movable carrier 23 to tilt about the first direction.
[0123] In some specific examples, when the second drive mechanism 252 has two or more second friction heads 25222, the two second friction heads 25222 alternately make frictional contact with the intermediate frame 24. For example, when one of the two second friction heads 25222 is in contact with the intermediate frame 24, the vibration of the second piezoelectric vibrator 25221 is transmitted to the intermediate frame 24 through that second friction head 25222, driving the intermediate frame 24 to tilt about the second direction. At this time, the other of the two second friction heads 25222 is in a non-contact state with the intermediate frame 24. During the vibration cycle of the second drive mechanism 252, the two second friction heads 25222 alternately make contact with the intermediate frame 24, so that after one second friction head 25222 completes the driving action, the other second friction head 25222 continues to complete the driving action, and the two second friction heads 25222 cooperate to drive the intermediate frame 24 to tilt about the second direction.
[0124] In one example of this application, the movable carrier 23 further includes at least one carrier extension arm extending from the carrier sidewall in a direction away from the optical axis. The first drive mechanism 251 and one of the carrier extension arms are located on the same side of the movable carrier 23, and the first drive mechanism 251 acts on the carrier extension arm to drive the movable carrier 23 to move. For example, when the number of at least one carrier extension arm is one, it includes a first carrier extension arm 235, wherein the first carrier extension arm 235 extends from the first carrier sidewall 231 in a direction away from the optical axis, and the first carrier extension arm 235 and the first drive mechanism 251 are located on the same side of the movable carrier 23, such as the first side 103.
[0125] In other examples of this application, when the number of at least one carrier extension arm is two, it includes a first carrier extension arm 235 and a second carrier extension arm 237. The first carrier extension arm 235 is as described above, and the second carrier extension arm 237 extends from the third carrier sidewall 233 in a direction away from the optical axis. The second carrier extension arm 237 and the first drive mechanism 251 are located on opposite sides of the movable carrier 23, such as the third side 105. The second carrier extension arm 237 includes a second carrier top surface 2371 and a second carrier bottom surface 2372 opposite each other along the optical axis, wherein the second carrier top surface 2371 and the second carrier bottom surface 2372 are arc-shaped. The shapes of the second carrier top surface 2371 and the second carrier bottom surface 2372 can be the same as or slightly different from the shapes of the first carrier top surface 2351 and the first carrier bottom surface 2352, but can achieve the same function.
[0126] In one example of this application, the intermediate frame 24 further includes at least one frame extension arm extending from the frame sidewall in a direction away from the optical axis. The second drive mechanism 252 is located on the same side of the intermediate frame 24 as one of the frame extension arms, and the second drive mechanism 252 acts on the frame extension arm to drive the intermediate frame 24 to move. For example, when the number of at least one frame extension arm is one, it includes a first frame extension arm 245, wherein the first frame extension arm 245 extends from the second frame sidewall 242 in a direction away from the optical axis, and the first frame extension arm 245 and the second drive mechanism 252 are located on the same side of the intermediate frame 24, such as the second side 104.
[0127] In other examples of this application, when the number of at least one frame extension arm is two, it includes a first frame extension arm 245 and a second frame extension arm 247. The first frame extension arm 245 is as described above, and the second frame extension arm 247 extends from the fourth frame sidewall 244 in a direction away from the optical axis. The second frame extension arm 247 and the second drive mechanism 252 are located on opposite sides of the intermediate frame 24, such as the fourth side 106. The second frame extension arm 247 includes a second frame top surface 2471 and a second frame bottom surface 2472 opposite each other along the optical axis, wherein the second frame top surface 2471 and the second frame bottom surface 2472 are arc-shaped. The shapes of the second frame top surface 2471 and the second frame bottom surface 2472 can be the same as or slightly different from the shapes of the first frame top surface 2451 and the first frame bottom surface 2452, but can achieve the same function.
[0128] refer to Figure 5In one example of this application, the gimbal assembly 20 further includes a support assembly 26, wherein the support assembly 26 includes a first support portion 261 on the same side as the first drive mechanism 251 and a third support portion 263 on the same side as the second drive mechanism 252. The first support portion 261 is disposed between the movable carrier 23 and the fixed block 29 along the optical axis direction, and the third support portion 263 is disposed between the intermediate frame 24 and the fixed block 29 along the optical axis direction.
[0129] The first support portion 261 is disposed between the first carrier extension arm 235 and the first fixed sidewall 291. The top and bottom of the first carrier extension arm 235 maintain frictional contact with the first support portion 261 and the first friction head 25122, respectively. The direction of the first pre-pressure force generated by the first pre-pressure component 2511 is parallel to and opposite to the direction of the supporting force generated by the first support portion 261. The third support portion 263 is disposed between the first frame extension arm 245 and the second fixed sidewall 292. The top and bottom of the first frame extension arm 245 maintain frictional contact with the third support portion 263 and the second friction head 25222, respectively. The direction of the second pre-pressure force generated by the second pre-pressure component 2521 is parallel to and opposite to the direction of the supporting force generated by the third support portion 263.
[0130] It is understandable that if only the first preload is applied to the bottom of the first carrier extension arm 235, the risk of the movable carrier 23 overturning will increase. Similarly, if only the second preload is applied to the bottom of the first carrier extension arm 235, the risk of the intermediate frame 24 overturning will increase. In order to maintain the balance of the movable carrier 23 or the intermediate frame 24, balancing structures need to be provided on the opposite side of the first support 261 and the opposite side of the third support 263 to provide the movable carrier 23 or the intermediate frame 24 with a supporting force in the opposite direction to the first or second preload, so as to balance with the first or second preload and reduce the risk of the movable carrier 23 or the intermediate frame 24 overturning.
[0131] In some examples of this application, the support assembly 26 further includes a second support portion located on the opposite side of the first drive mechanism 251 and a fourth support portion located on the opposite side of the second drive mechanism 252. As mentioned above, the movable carrier 23 and the intermediate frame 24 are both disposed between the fixed block 29 and the base 22. The movable carrier 23 has a first carrier extension arm 235 and a second carrier extension arm 237, and the intermediate frame 24 has a first frame extension arm 245 and a second frame extension arm 247. That is, under the downward pressure of the fixed block 29, the second support portion and the second carrier extension arm 237 form a balancing structure for the first drive mechanism 251. The fixed block 29 generates a downward supporting force on the second carrier extension arm 237 through the second support portion, which is opposite to the direction of the first pre-pressure. The fourth support portion and the second frame extension arm 247 form a balancing structure for the second drive mechanism 252. The fixed block 29 generates a downward supporting force on the second frame extension arm 247 through the fourth support portion, which is opposite to the direction of the second pre-pressure. The second support portion 262 is disposed between the second carrier extension arm 237 and the third fixed sidewall 293 along the optical axis direction. The first support portion 261 and the second support portion provide support on the first side 103 and the third side 105 opposite to the movable carrier 23 to provide symmetrical support force. The fourth support portion is disposed between the second frame extension arm 247 and the fourth fixed sidewall 294 along the optical axis direction. The third support portion 263 and the fourth support portion provide support on the second side 104 and the fourth side 106 opposite to the intermediate frame 24 to provide symmetrical support force.
[0132] Furthermore, since the first drive mechanism 251 is provided at the bottom of the movable carrier 23 and the second drive mechanism 252 is provided at the bottom of the intermediate frame 24, the first support part 261 and the second support part 262 can be provided only at the top of the movable carrier 23 for support, and the third support part 263 and the fourth support part can be provided only at the top of the intermediate frame 24 for support. This eliminates the need for additional support components 26 at the bottom or sides of the movable carrier 23 and the intermediate frame 24, reducing the number of support components 26 and thus enhancing the assembly consistency and accuracy of the gimbal module 100. Moreover, during the assembly of the gimbal module 100, a stacking assembly method from the top side 101 to the bottom side 102 can be adopted, further simplifying the assembly process and reducing assembly tolerances.
[0133] In some specific examples, the first support 261, the second support, the third support 263 and the fourth support can be implemented as balls, rollers, bosses or guide shafts, as long as they can achieve tilt and shake prevention for supporting the movable carrier 23 and the intermediate frame 24.
[0134] In one example of this application, the gimbal assembly 20 further includes a magnetic suction assembly 28, which includes a first magnetic suction portion and a second magnetic suction portion. The first magnetic suction portion and the first drive mechanism 251 are located on opposite sides of the gimbal module 100's periphery. For example, the first drive mechanism 251 is located on the first side 103, and the first magnetic suction portion is located on the third side 105 opposite to the first side 103. This allows the movable carrier 23 to be subjected to symmetrical magnetic attraction and pre-pressure, reducing the risk of the movable carrier 23 tipping over. The second magnetic suction portion and the second drive mechanism 252 are located on opposite sides of the gimbal module 100's periphery. For example, the second drive mechanism 252 is located on the second side 104, and the second magnetic suction portion is located on the fourth side 106 opposite to the second side 104. This allows the intermediate frame 24 to be subjected to symmetrical magnetic attraction and pre-pressure, reducing the risk of the intermediate frame 24 tipping over.
[0135] In some embodiments of this application, the first magnetic attraction part includes a first magnetic attraction member 281 disposed on the side wall of the intermediate frame 24 and a second magnetic attraction member 282 disposed on the side wall of the movable carrier 23. The first magnetic attraction member 281 and the second magnetic attraction member 282 are disposed opposite to each other along the optical axis to generate a magnetic attraction force along the optical axis, maintain the frictional contact between the movable carrier 23 and the intermediate frame 24, and further improve the structural compactness.
[0136] The second magnetic attraction part includes a third magnetic attraction member 283 disposed on the side wall of the fixing block 29 and a fourth magnetic attraction member 284 disposed on the intermediate frame 24. The third magnetic attraction member 283 and the fourth magnetic attraction member 284 are disposed opposite to each other along the optical axis to generate a magnetic attraction force along the optical axis, maintain the frictional contact between the fixing block 29 and the intermediate frame 24, and make the overall structure of the gimbal module 100 more compact.
[0137] In some specific examples, both the first magnetic attraction part and the second magnetic attraction part include two magnetic components that can generate magnetic attraction between each other.
[0138] like Figure 6 As shown in one example of this application, the driving mechanism 25 further includes a conductive component 255, wherein the conductive component 255 is disposed between the piezoelectric vibrator 2541 and the preload component 253 to realize the conduction of the driving mechanism 25. Specifically, the conductive component 255 includes a first substrate 2551 and a second substrate 2552, the first substrate 2551 is used to realize the conduction of the first driving mechanism 251, and the second substrate 2552 is used to realize the conduction of the second driving mechanism 252.
[0139] In some specific examples, at least a portion of the first substrate 2551 is disposed between the first piezoelectric vibrator 25121 and the first pre-pressure component 2511 to enable the first piezoelectric vibrator 25121 to conduct electricity; at least a portion of the second substrate 2552 is disposed between the second piezoelectric vibrator 25221 and the second pre-pressure component 2521 to enable the second piezoelectric vibrator 25221 to conduct electricity.
[0140] In some specific examples, the first substrate 2551 is fixed to the bottom of the intermediate frame 24 by the first pre-pressing component 2511, and at least a portion of the first substrate 2551 extends in a plane perpendicular to the optical axis; the second substrate 2552 is fixed to the bottom of the fixing block 29 by the second pre-pressing component 2521, and at least a portion of the second substrate 2552 extends in a plane perpendicular to the optical axis. When the movable carrier 23 tilts about a first direction, the first substrate 2551 and the intermediate frame 24 remain relatively stationary during this movement; when the intermediate frame 24 tilts about a second direction, the first substrate 2551 deforms with the tilting movement of the intermediate frame 24. This deformation causes the first substrate 2551 to generate a counterforce, thereby affecting the tilting effect of the intermediate frame 24. To solve the above problem, the first substrate 2551 bends and extends towards the intermediate frame 24 in a plane perpendicular to the optical axis to increase the extension length of the first substrate 2551, thereby reducing the counterforce of the first substrate 2551.
[0141] In some specific examples, the conductive component 255 further includes a conductive substrate 2553, which is located on the opposite side of the first substrate 2551 and the second substrate 2552 to make reasonable use of the space of the gimbal assembly 20 and avoid interference between the conductive substrate 2553, the first substrate 2551, and the second substrate 2552. For example, the first substrate 2551 and the first driving mechanism 251 are located on the first side 103, the second substrate 2552 and the second driving mechanism 252 are located on the second side 104, and the conductive substrate 2553 is located on the third side 105 or the fourth side 106. The first substrate 2551 and the second substrate 2552 bend and extend from a plane perpendicular to the optical axis toward the conductive substrate 2553 to be electrically connected to the conductive substrate 2553 and electrically connected to external circuitry through the conductive substrate 2553.
[0142] In one example, the conductive substrate 2553 is located on the third side 105. The first substrate 2551 is bent from the bottom of the first frame sidewall 241 toward the bottom of the fourth fixed sidewall 294 and extends to the bottom of the fourth fixed sidewall 294. Then, it is bent from the bottom of the fourth fixed sidewall 294 toward the third fixed sidewall 293 and electrically connected to the conductive substrate 2553 disposed on the third fixed sidewall 293. In this way, the length of the first substrate 2551 can be increased, and the reaction force of the first substrate 2551 when the intermediate frame 24 moves around the second direction can be reduced.
[0143] The second substrate 2552 is bent from the bottom of the second fixed sidewall 292 toward the third fixed sidewall 293 and is electrically connected to the conductive substrate 2553 disposed on the third fixed sidewall 293. In this way, the first substrate 2551 and the second substrate 2552 are connected to the conductive substrate 2553 and are electrically connected to the external circuit through the conductive substrate 2553.
[0144] Specifically, on the third fixed sidewall 293, the conductive substrate 2553 extends along a plane parallel to the optical axis and connects the extension end of the first substrate 2551 and the extension end of the second substrate 2552. The conductive substrate 2553 is electrically connected to the first sensing element 271 and the second sensing element 273 located on the third carrier sidewall 233, so that the sensing component 27 is electrically connected to the external circuit through the conductive substrate 2553.
[0145] Furthermore, a conductive plate is disposed between the conductive substrate 2553 and the sensing element located on the side wall 233 of the third carrier. The conductive plate is located within the opening of the fixing block 29 and has a certain thickness. The thickness of the conductive plate is the same as the depth of the opening of the fixing block 29 along the first direction. By providing a conductive plate of a certain thickness to connect the sensing element located on the inner and outer sides of the fixing block 29 and the conductive substrate 2553, electrical conduction of the sensing component 27 is achieved, reducing the number of bends in the conductive substrate 2553.
[0146] In one example of this application, the conductive component 255 is an integrally formed conductive component. The conductive component has an integrally formed first substrate 2551, a second substrate 2552 and a conductive substrate 2553. The first substrate 2551 and the second substrate 2552 extend from the bottom side 102 of the two driving mechanisms 25 along their respective planes, and extend along the optical axis on the circumferential side where no driving mechanism 25 is provided, forming the conductive substrate 2553. That is, the first substrate 2551 and the second substrate 2552 are located on the bottom side 102 of the first side 103 and the bottom side 102 of the second side 104, respectively, and the first conductive substrate 2553 is located on the third side 105 or the fourth side 106.
[0147] like Figure 5 As shown, the first substrate 2551 is bent from the bottom of the first frame sidewall 241 toward the bottom of the fourth fixed sidewall 294 and extends to the bottom of the fourth fixed sidewall 294, and then bends from the bottom of the fourth fixed sidewall 294 toward the third fixed sidewall 293; the second substrate 2552 is bent from the bottom of the second fixed sidewall 292 toward the third fixed sidewall 293; the conductive substrate 2553 is located outside the third fixed sidewall 293 of the fixing block 29 and extends along a plane parallel to the optical axis, and is integrally formed with the first substrate 2551 and the second substrate 2552 to form an integral conductive component structure.
[0148] As previously mentioned, when the intermediate frame 24 tilts around the second direction, the first substrate 2551 will deform along with the tilting movement of the intermediate frame 24, thereby affecting the tilting movement effect of the intermediate frame 24. Specifically, if the planes where the first substrate 2551 and the second substrate 2552 are located are at the same height, the first substrate 2551 and the portion bent toward the fourth side 106 will be raised during this process, causing the extension portion of the first substrate 2551 on the fourth side 106 to interfere with the second frame extension arm 247 on the intermediate frame 24, thereby affecting the tilting movement effect of the intermediate frame 24.
[0149] In some specific examples, the bottom surface height of the first substrate 2551 is lower than the bottom surface height of the second substrate 2552, and the mounting height of the first pre-pressing component 2511 is lower than the mounting height of the second pre-pressing component 2521. On the one hand, lowering the mounting height of the first substrate 2551 increases the distance between the second frame extension arm 247 and the first substrate 2551, avoiding the risk of interference. On the other hand, this arrangement allows the first drive mechanism 251 to be positioned lower, and the positions of the movable carrier 23 and the imaging component 10 that are in frictional contact with it are also lowered, thereby further improving the compactness of the gimbal module 100 structure and reducing the overall height of the gimbal module 100.
[0150] In some specific examples, the intermediate frame 24 is provided with a conductive structure, wherein the conductive structure can be embedded in the intermediate frame 24; or, the conductive structure can be provided on the surface of the intermediate frame 24. The first substrate 2551 is electrically connected to the conductive structure of the intermediate frame 24 at the top of the first frame sidewall 241. The base 22 is provided with a conductive structure, wherein the conductive structure can be embedded within the base 22; or, the conductive structure can be provided on the surface of the base 22. The second substrate 2552 is electrically connected to the conductive structure of the base 22 at the top of the second base sidewall 222. The conductive assembly 255 further includes an elastic structure extending between the intermediate frame 24 and the base 22. The elastic structure can be electrically connected through the conductive structure of the base 22 and the conductive structure of the intermediate frame 24 to electrically conduct the first substrate 2551 and the second substrate 2552. The conductive substrate 2553 is electrically connected to the conductive structure within the base 22 to electrically conduct to external circuitry.
[0151] like Figure 21 and Figure 22As shown in one example of this application, the gimbal assembly 20 further includes a sensing assembly 27, which includes a first sensing element 271 and a first sensing magnet 272, which are arranged opposite to each other along a direction perpendicular to the optical axis. The first sensing element 271 can be disposed in one of the movable carrier 23 and the intermediate frame 24, and the first sensing magnet 272 can be disposed in the other of the movable carrier 23 and the intermediate frame 24. When the movable carrier 23 tilts and moves about a first direction, the relative position between the first sensing element 271 and the first sensing magnet 272 changes. Based on the strength of the magnetic field of the first sensing magnet 272 sensed by the first sensing element 271, the position of the movable carrier 23 can be determined, thereby controlling the first drive mechanism 251 to drive the movable carrier 23 to the desired position.
[0152] Of course, in some specific examples, the first sensing element 271 can be set in one of the movable carrier 23 and the fixed block 29, and the first sensing magnet 272 can be set in the other of the movable carrier 23 and the fixed block 29, so that the first sensing element 271 and the first sensing magnet 272 are arranged opposite each other in a direction perpendicular to the optical axis.
[0153] Furthermore, the sensing assembly 27 also includes a second sensing element 273 and a second sensing magnet 274, which are arranged opposite to each other along a direction perpendicular to the optical axis. The second sensing element 273 can be disposed in one of the intermediate frame 24 and the fixing block 29, and the second sensing magnet 274 can be disposed in the other of the intermediate frame 24 and the fixing block 29. When the intermediate frame 24 tilts about the second direction, the relative position between the second sensing element 273 and the second sensing magnet 274 changes. Based on the strength of the magnetic field of the second sensing magnet 274 sensed by the second sensing element 273, the position of the intermediate frame 24 can be determined, thereby controlling the second drive mechanism 252 to drive the intermediate frame 24 to the desired position.
[0154] The first sensing element 271 and the first sensing magnet 272 are disposed on the same side as the first driving mechanism 251. The first sensing element 271 is disposed on and connected to the first substrate 2551. The second sensing element 273 and the second sensing magnet 274 are disposed on the same side as the second driving mechanism 252. The second sensing element 273 is disposed on and connected to the second substrate 2552.
[0155] like Figures 7-18As shown in one example of this application, as previously described, the gimbal assembly 20 can drive the imaging assembly 10 to move in order to achieve the tilt stabilization function of the gimbal module 100. However, during the movement of the imaging assembly 10, the chip circuit board 122 will be stretched, which will affect the driving effect of the gimbal assembly 20.
[0156] To address the aforementioned issues, in a specific example, the chip circuit board 122 includes a first board body 1221 and a second board body 1222. The photosensitive chip 121 is disposed on the first board body 1221, and the second board body 1222 extends from the first board body 1221 in a direction away from the optical axis. The second board body 1222 undergoes multiple bends in a direction perpendicular to its extension plane; for example, the second board body 1222 is folded in an S-shape. Thus, when the imaging assembly 10 is driven to tilt around a first direction and around a second direction, the second board body 1222 can extend and retract synchronously. This expands the range of motion of the imaging assembly 10 and reduces the counterforce on the chip circuit board 122, ensuring precise image stabilization of the imaging module. Furthermore, it reduces the impact of the imaging module's movement on the chip circuit board 122, preventing damage to the chip circuit board 122.
[0157] In some specific examples, the first board 1221 is a rigid circuit board, and the second board 1222 is a flexible circuit board.
[0158] This application provides a chip circuit board 122, which includes a first board body 1221, a second board body 1222, and a flexible board body 1223 connecting the first board body 1221 and the second board body 1222. The second board body 1222 is located on the outer periphery of the first board body 1221. A photosensitive chip 121 is disposed on the first board body 1221, which is fixed to the imaging assembly 10 and located on the light-emitting side of the imaging assembly 10 to receive external light collected by the lens assembly 11. The second board body 1222 is disposed on a base 22 and remains fixed. When the imaging assembly 10 is driven to tilt around a first direction and tilt around a second direction, the first board body 1221 is driven to rotate and tilt around the first and second directions, and the flexible board body 1223 will deform to a certain extent, reducing the reaction force of the chip circuit board 122 and ensuring that the imaging module can perform precise image stabilization.
[0159] In one specific example, the conductive substrate 2553 may be electrically connected to the second plate 1222 to be electrically connected to external circuitry through the second plate 1222.
[0160] In this application, the flexible plate 1223 has a certain K value (K is the elastic coefficient or rigidity coefficient). The larger the K value, the less easily the flexible plate 1223 is deformed. However, when the first plate 1221 rotates, a large K value will cause the flexible plate 1223 to generate a large reaction force, affecting the rotation of the first plate 1221 and the imaging component 10, thereby interfering with the tilt stabilization effect of the gimbal module 100. Therefore, a flexible plate 1223 with a smaller K value is preferred to reduce its reaction force and minimize its impact on the stabilization effect.
[0161] In some embodiments of this application, the flexible plate 1223 has a certain length, which allows it to have a large deformation range between the first plate 1221 and the second plate 1222. This is beneficial to reduce the K value of the flexible plate 1223, thereby reducing the reaction force generated during its movement.
[0162] In some other examples, the flexible plate 1223 is implemented as four flexible structures, which are respectively arranged on the four sides between the first plate 1221 and the second plate 1222, and all four flexible structures are located between the first plate 1221 and the second plate 1222.
[0163] However, due to the limited space between the first plate 1221 and the second plate 1222, the greater the number of flexible structures, the more limited their individual lengths become, making it difficult to effectively suppress the counterforce. Therefore, the number and length of the flexible structures directly affect the counterforce generated during tilting motion, thus affecting the anti-shake driving effect of the gimbal module 100.
[0164] To address the aforementioned issues, some examples of this application provide a flexible plate 1223, including a first flexible structure 12231 and a second flexible structure 12232. The first flexible structure 12231 and the second flexible structure 12232 extend from at least two sides of the periphery between the first plate 1221 and the second plate 1222, such that the length of a single flexible structure can be at least equal to the sum of the lengths of two adjacent sides of the first plate 1221. By reducing the number of flexible structures, more extension space can be freed up for each individual flexible structure, thereby ensuring that the first flexible structure 12231 and the second flexible structure 12232 have sufficient length, effectively reducing the K value of the flexible plate 1223 and suppressing the reaction force generated during tilting motion.
[0165] The first flexible structure 12231 and the second flexible structure 12232 each have multiple wires to realize the electrical connection between the first plate 1221 and the second plate 1222.
[0166] Specifically, the first flexible structure 12231 and the second flexible structure 12232 are arranged rotationally symmetrically with respect to the first plate 1221. When the flexible plate 1223 deforms with the movement of the first plate 1221, the rotationally symmetrical shape ensures that the first flexible structure 12231 and the second flexible structure 12232 experience relatively balanced forces, reducing the risk of localized fracture of the flexible structure due to uneven force distribution, thereby ensuring the stability of the deformation capacity of the flexible plate 1223. Simultaneously, the reaction forces acting on the first plate 1221 during movement are symmetrical, avoiding interference from unilateral forces on the tilt motion and reducing the impact on the anti-shake effect.
[0167] More specifically, the two ends of the first flexible structure 12231 and the second flexible structure 12232 are also rotationally symmetrical. The two connecting ends of the first flexible structure 12231 and the second flexible structure 12232 to the first plate 1221, and the two leading ends of the first flexible structure 12231 and the second flexible structure 12232 to the second plate 1222, are all rotationally symmetrical. This rotationally symmetrical connection method allows for a more balanced force distribution at the connection point between the first plate 1221 and the second plate 1222, reducing localized stress concentration caused by improper connection positions, improving connection stability, ensuring a reliable connection between the flexible plate 1223 and the first plate 1221 and the second plate 1222, and reducing the risk of loosening and detachment during movement.
[0168] In one embodiment of this application, the first plate 1221 is quadrilateral. For example... Figure 10 and Figure 11 As shown, the outer edge of the first plate 1221 has a first inner edge 12211, a second inner edge 12212, a third inner edge 12213, a fourth inner edge 12214, a first inner corner 122111 between the first inner edge 12211 and the second inner edge 12212, a second inner corner 122121 between the second inner edge 12212 and the third inner edge 12213, a third inner corner 122131 between the third inner edge 12213 and the fourth inner edge 12214, and a fourth inner corner 122141 between the fourth inner edge 12214 and the first inner edge 12211.
[0169] The second plate 1222 includes a first outer edge 12221, a second outer edge 12222, a third outer edge 12223, and a fourth outer edge 12224 connected in sequence. The second plate 1222 also includes a first outer corner 122211 between the first outer edge 12221 and the second outer edge 12222, a second outer corner 122221 between the second outer edge 12222 and the third outer edge 12223, a third outer corner 122231 between the third outer edge 12223 and the fourth outer edge 12224, and a fourth outer corner 122241 between the fourth outer edge 12224 and the first outer edge 12221.
[0170] In a specific example, the first flexible structure 12231 and the second flexible structure 12232 both extend from one side or an outer corner of the first plate 1221, undergo at least one bend, and connect to an inner corner of the second plate 1222. The outer corner and the inner corner connecting the same flexible structure are located opposite to the first plate 1221.
[0171] Specifically, the end connecting the first flexible structure 12231 to the first plate 1221 is the first connecting end 122311, and the end connecting the second flexible structure 12232 to the first plate 1221 is the second connecting end 122312. The first connecting end 122311 and the second connecting end 122312 are located at two opposite outer corners of the first plate 1221, respectively. The end connecting the first flexible structure 12231 to the second plate 1222 is the first leading end 122371, and the end connecting the second flexible structure 12232 to the second plate 1222 is the second leading end 122372. The first leading end 122371 and the second leading end 122372 are located at two opposite inner corners of the second plate 1222, respectively. By setting the end positions of the two flexible structures relative to each other, the length of the two flexible structures can be extended as much as possible while avoiding interference between them, thus improving the rationality of the layout.
[0172] More specifically, the first connecting end 122311 is adjacent to the second output end 122372, and the second connecting end 122312 is adjacent to the first output end 122371, so that the first flexible structure 12231 and the second flexible structure 12232 have the longest possible extension length and do not interfere with each other, thereby reducing the K value of the first flexible structure 12231 and the second flexible structure 12232.
[0173] Specifically, the first connecting end 122311 of the first flexible structure 12231 connected to the first plate 1221 corresponds to the first inner corner 122111 of the first plate 1221; the first leading end 122371 of the first flexible structure 12231 connected to the second plate 1222 corresponds to the third outer corner 122231 of the second plate 1222, and the two are relative angles between the first plate 1221 and the second plate 1222. The second connecting end 122312 of the second flexible structure 12232 connected to the first plate 1221 corresponds to the third inner corner 122131 of the first plate 1221; the second leading end 122372 of the second flexible structure 12232 connected to the second plate 1222 corresponds to the first outer corner 122211 of the second plate 1222, and the two are also relative angles between the first plate 1221 and the second plate 1222. By using a relative angle connection design, the effective lengths of the first flexible structure 12231 and the second flexible structure 12232 are extended, while ensuring that the two are rotate symmetrically arranged and the force is more balanced.
[0174] In this application, because the bottom surface of the imaging component 10 is higher than the bottom surface of the base 22, when the chip circuit board 122 is assembled into the gimbal module 100, the bottom surface of the first plate 1221 is higher than the bottom surface of the second plate 1222, the connecting end of the flexible plate 1223 is higher than its output end, and the other parts of the flexible plate 1223 located between the connecting end and the output end are inclined and extended from high to low. During tilting motion, as the first plate 1221 rotates, the connecting end of the flexible plate 1223 connected to the first plate 1221 will tilt up, thereby causing the flexible plate 1223 to deform.
[0175] Specifically, since the first flexible structure 12231 and the second flexible structure 12232 are rotatably arranged relative to the first plate 1221, when the first plate 1221 rotates around the first direction and the second direction, the connecting ends of the two flexible structures connected to the first plate 1221 are raised in opposite directions. That is, the first connecting end 122311 and the second connecting end 122312 are raised in opposite directions, one of which is raised along the optical axis to the object side, and the other is raised along the optical axis to the image side. Given the height difference in the inclined extension of the flexible plate 1223, the height difference generated by the raising of the first flexible structure 12231 and the second flexible structure 12232 during tilting motion will be even greater.
[0176] For example, the first connecting end 122311 of the first flexible structure 12231 tilts upwards along the optical axis towards the object side, and the second connecting end 122312 of the second flexible structure 12232 tilts upwards along the optical axis towards the image side. During tilting motion, the first flexible structure 12231 deforms as the first connecting end 122311 tilts upwards, further increasing its top height, making it more prone to interference with the middle frame 24 located on the top side 101 of the gimbal module 100; the second flexible structure 12232 deforms as the second connecting end 122312 tilts upwards, further decreasing its bottom height, making it more prone to interference with other structures located on the bottom side 102 of the base 22. These two interferences may affect the structure of the chip circuit board 122, thereby affecting the tilting stabilization effect.
[0177] like Figure 11 As shown, when the first connecting end 122311 is tilted upwards along the optical axis toward the object side, the height of the first bent portion 122341 is lower than the height of the first connecting end 122311; when the second connecting end 122312 is tilted upwards along the optical axis toward the image side, the height of the second bent portion 122342 is higher than the height of the second connecting end 122312.
[0178] In order to avoid interference between the first connection terminal 122311 and the second connection terminal 122312 and the intermediate frame 24 when they are tilted up, this application has made targeted improvements to the structure of the chip circuit board 122 and the structure of the intermediate frame 24.
[0179] In some examples of this application, an inclined extension is provided between the connecting end of the flexible plate 1223 connected to the first plate 1221 and the flexible plate 1223, and the straight line of the inclined extension is inclined to the straight line of the side length of the nearest first plate 1221. Specifically, a first inclined extension 122321 is provided between the first connecting end 122311 of the first flexible structure 12231 and the first plate 1221, and a second inclined extension 122322 is provided between the second connecting end 122312 of the second flexible structure 12232 and the first plate 1221.
[0180] For example, the first connecting end 122311 of the first flexible structure 12231 is connected to the second inner edge 12212 of the first plate 1221, the second connecting end 122312 of the second flexible structure 12232 is connected to the fourth inner edge 12214 of the first plate 1221, the straight line where the first inclined extension 122321 is located intersects the straight line where the second inner edge 12212 is located and the straight line where the third inner edge 12213 (or the first inner edge 12211) is located, and the straight line where the second inclined extension 122322 is located intersects the straight line where the fourth inner edge 12214 is located and the straight line where the third inner edge 12213 (or the first inner edge 12211) is located.
[0181] The line where the inclined extension is located is inclined to the line where the side length of the nearest first plate 1221 is located. That is, the line where the first inclined extension 122321 is located is inclined to the line where the second inner edge 12212 is located, and the line where the second inclined extension 122322 is located is inclined to the line where the fourth inner edge 12214 is located. This eliminates the traditional right-angle corner structure between the flexible plate 1223 and the first plate 1221, and transforms the right-angle corner area that was originally prone to interference into a smoothly transitioned inclined extension, thus structurally avoiding the risk of interference. It is understandable that if the connection between the flexible plate 1223 and the first plate 1221 directly forms a right-angle corner, this corner will tilt up and down with the tilting movement of the first plate 1221, thus becoming the lowest or highest point of the flexible plate 1223. When the corner is at its highest point, this position is close to the bottom surface of the intermediate frame 24, making it very easy for it to mechanically interfere with the intermediate frame 24 during movement. When the corner is at its lowest point, this position is also very easy for it to mechanically interfere with the base 22 during movement. Moreover, compared with the right-angle corner structure, the inclined extension is not only simpler to manufacture, but also increases the connection area between the inclined extension and the first plate 1221, improving the reliability of the chip circuit board 122.
[0182] Furthermore, the line containing the first inclined extension 122321 is parallel to the line containing the first hypotenuse 12215, and the line containing the second inclined extension 122322 is parallel to the line containing the third hypotenuse 12217, to achieve rotational symmetry between the two. The first hypotenuse 12215 and the third hypotenuse 12217 will be described later.
[0183] Specifically, the angle α between the straight line containing the first inclined extension 122321 and the straight line containing the second inner edge 12212 of the first plate 1221 is α, and the angle β between the straight line containing the second inclined extension 122322 and the straight line containing the fourth inner edge 12214 of the first plate 1221 is β. In particular, the angle between the straight line containing the first inclined extension 122321 and the straight line containing the second inner edge 12212 of the first plate 1221 is 10° ≤ α < 90°. In one embodiment, α = 45°.
[0184] If α and β are too small, i.e. less than 10°, the inclined extension will be too close to the side of the adjacent first plate 1221. That is, the first inclined extension 122321 will be too close to the second inner edge 12212, and the second inclined extension 122322 will be too close to the fourth inner edge 12214. Such a layout has certain limitations. On the one hand, the distance between the innermost side of the first inclined extension 122321 and the second inner edge 12212, and the distance between the innermost side of the second inclined extension 122322 and the fourth inner edge 12214 will be compressed, resulting in a limited width of the first flexible structure 12231 and the second flexible structure 12232, making it difficult to accommodate a sufficient number of wires. On the other hand, the innermost sides of the first connecting end 122311 and the second connecting end 122312 will be under greater stress due to stress concentration, affecting the connection strength between the flexible plate 1223 and the first plate 1221.
[0185] It should be noted that the width of both the first flexible structure 12231 and the second flexible structure 12232 is not less than 1100um to meet basic wiring requirements.
[0186] If α and β are too large, i.e., greater than or equal to 90°, the straight line containing the inclined extension tends to be perpendicular to the straight line containing the edge of the adjacent first plate 1221. Specifically, the straight line containing the first inclined extension 122321 tends to be perpendicular to the straight line containing the second inner edge 12212, and the straight line containing the second inclined extension 122322 tends to be perpendicular to the straight line containing the fourth inner edge 12214. During tilting motion, the end of the first inclined extension 122321 away from the first plate 1221 and the end of the second inclined extension 122322 away from the first plate 1221 will become the highest and lowest points of the warping of the flexible plate 1223, respectively, making it easier for mechanical interference to occur with the intermediate frame 24 and other structures of the base 22.
[0187] In particular, when both α and β are 90°, a right-angle region is formed between the inclined extension and the adjacent connecting part. During the tilt anti-shake movement, these right-angle regions will become more prominent as the flexible plate 1223 tilts up, making it easier for them to mechanically interfere with the intermediate frame 24 and other structures of the base 22.
[0188] Specifically, the flexible plate 1223 has a connecting portion adjacent to the inclined extension. More specifically, the first flexible structure 12231 has a first connecting portion 122331, which connects the first inclined extension 122321 and the first bending portion 122341; the second flexible structure 12232 has a third connecting portion 122332, which connects the second inclined extension 122322 and the second bending portion 122342.
[0189] When both α and β are 90°, the straight line containing the first connecting portion 122331 is parallel to the straight line containing the second inner edge 12212, and the angle γ between the first inclined extension 122321 and the first connecting portion 122331 is also a right angle. Similarly, the straight line containing the third connecting portion 122332 is parallel to the straight line containing the fourth inner edge 12214, and the angle φ between the second inclined extension 122322 and the third connecting portion 122332 is also a right angle. The right-angled regions forming γ and φ will also be the positions of the highest and lowest points during tilt rotation, making them more likely to become mechanical interference points with the intermediate frame 24 and / or other structures of the gimbal module 100 and base 22.
[0190] To address the aforementioned issues, this application designs the first inclined extension 122321 and the second inclined extension 122322 as inclined extensions, and reasonably sets the angles α and β of the inclined extensions. This satisfies the internal wiring requirements of the first flexible structure 12231 and the second flexible structure 12232, ensures the reliability of the connection between the flexible plate 1223 and the first plate 1221, and avoids interference with other structures such as the intermediate frame 24 and / or the base 22.
[0191] In this design, α and β are designed to be acute angles less than 90°. Compared to the previous design, this provides a wider width space for the first flexible structure 12231 and the second flexible structure 12232, ensuring the arrangement of the wires. At the same time, the right-angled area at the connection position between the connecting part and the inclined extension part is transformed into an obtuse-angled area, i.e., γ and φ are obtuse angles. This significantly reduces the possibility of structural interference between the first flexible structure 12231 and the second flexible structure 12232 and the surrounding components, thereby improving the stability and reliability of the tilt anti-shake motion.
[0192] The angle between the straight line containing the second inclined extension 122322 and the straight line containing the fourth inner edge 12214 of the first plate 1221 is 10°≤β<90°. In one embodiment, β=45°.
[0193] In some examples, each flexible structure has two connections, one of which connects the inclined extension and the bend, and the other connects the bend and the lead end. The projection of each connection is parallel to the edge of its adjacent first plate 1221 along the optical axis, minimizing the space required to arrange each flexible structure.
[0194] Specifically, the first flexible structure 12231 has a first connecting portion 122331 and a second connecting portion 122351. The first connecting portion 122331 connects the first inclined extension portion 122321 and the first bending portion 122341, and the second connecting portion 122351 connects the first bending portion 122341 and the first lead-out end 122371. Along the optical axis, the projection of the first connecting portion 122331 is parallel to the second inner edge 12212 of the first plate 1221, and the projection of the second connecting portion 122351 is parallel to the third inner edge 12213 of the first plate 1221.
[0195] The second flexible structure 12232 has a third connecting portion 122332 and a fourth connecting portion 122352. The third connecting portion 122332 connects the second inclined extension portion 122322 and the second bending portion 122342, and the fourth connecting portion 122352 connects the second bending portion 122342 and the second lead-out end 122372. Along the optical axis, the projection of the third connecting portion 122332 is parallel to the fourth inner edge 12214 of the first plate 1221, and the projection of the fourth connecting portion 122352 is parallel to the first inner edge 12211 of the first plate 1221.
[0196] More specifically, in a static state, along the extension direction of the first flexible structure 12231, the heights of the first connecting end 122311, the first inclined extension 122321, the first connecting portion 122331, the first bending portion 122341, the second connecting portion 122351, and the first exiting end 122371 decrease sequentially; along the extension direction of the second flexible structure 12232, the heights of the second connecting end 122312, the second inclined extension 122322, the third connecting portion 122332, the second bending portion 122342, the fourth connecting portion 122352, and the second exiting end 122372 decrease sequentially, so as to connect the first plate 1221 and the second plate 1222 located at different heights. Furthermore, the first exiting end 122371 and the second exiting end 122372 are rotationally symmetrical.
[0197] In some embodiments, the first inclined extension 122321 and the first outlet 122371 are respectively connected to the opposite angles of the first plate 1221 and the second plate 1222, and the second inclined extension 122322 and the second outlet 122372 are respectively connected to the opposite angles of the first plate 1221 and the second plate 1222; wherein, the first inclined extension 122321 is connected to the first inner corner 122111 of the first plate 1221, the first outlet 122371 is connected to the third outer corner 122231 of the second plate 1222, the second inclined extension 122322 is connected to the third inner corner 122131 of the first plate 1221, and the second outlet 122372 is connected to the first outer corner 122211 of the second plate 1222.
[0198] In the initial state: the first plate 1221 carrying the photosensitive chip 121 is higher than the second plate 1222 fixed to the base 22. The flexible plate 1223 connecting the two is tilted towards the object side between the first plate 1221 and the second plate 1222. Its two ends are respectively flush with the plane of the first plate 1221 and the plane of the second plate 1222. The height of the first flexible structure 12231 decreases from the first tilted extension 122321 to the first output end 122371. The height of the second flexible structure 12232 decreases from the second tilted extension 122322 to the second output end 122372. When the first plate 1221 tilts with the movable carrier 23 or the intermediate frame 24 in a direction perpendicular to the optical axis, the flexible plate 1223 undergoes adaptive deformation with the displacement of the first plate 1221. As a result, the end of the flexible plate 1223 connected to the first plate 1221 will tilt towards the object side or towards the image side to adapt to the requirements of image stabilization.
[0199] Furthermore, the connecting surface of the second plate 1222 and the outlet end of the flexible plate 1223 is inclined to the two sides of the inner edge of the adjacent second plate 1222. A connecting part of the flexible plate 1223 is connected to the outlet end through a bending area. By setting the bending area and the inclined connecting surface, the connection angle between the second plate 1222 and the flexible plate 1223 is further reduced, avoiding stress concentration in the right-angle connection area during tilting movement, which could cause the connection to break or fall off.
[0200] Specifically, the connecting surface of the second plate 1222 and the first outlet end 122371 of the first flexible structure 12231 is inclined to the two sides of the inner edge of the adjacent second plate 1222, and the second connecting part 122351 of the first flexible structure 12231 is connected to the first outlet end 122371 through the first bending area 122361.
[0201] The connecting surface of the second plate 1222 and the second outlet end 122372 of the second flexible structure 12232 is inclined to the two sides of the inner edge of the adjacent second plate 1222. The fourth connecting part 122352 of the second flexible structure 12232 and the second outlet end 122372 are connected by the second bending area 122362.
[0202] The bending portion and bending area are all rounded, that is, the first bending portion 122341, the second bending portion 122342, the first bending area 122361 and the second bending area 122362 are all rounded, so that the flexible plate 1223 can achieve right-angle bending in a limited space.
[0203] As mentioned above, the first plate 1221 rotates during the tilt stabilization movement. In one embodiment of this application, the first plate 1221 is quadrilateral. During the tilt stabilization movement, the four outer corners of the first plate 1221 are located at the highest and lowest points of the first plate 1221, which makes it easy for it to interfere with other components of the gimbal module 100, such as the intermediate frame 24, the reinforcing plate in the base 22, etc.
[0204] In another embodiment of this application, the first inner corner 122111, the second inner corner 122121, the third inner corner 122131, and the fourth inner corner 122141 of the first plate 1221 are respectively provided with a first inclined side 12215, a second inclined side 12216, a third inclined side 12217, and a fourth inclined side 12218. Adjacent inner edges of the first plate 1221 are connected by corresponding inclined sides. The first inclined extension 122321 of the flexible plate 1223 is connected to the first inclined side 12215, and the second inclined extension 122322 is connected to the third inclined side 12217. First, removing the right angle helps to avoid interference between the first plate 1221 and other components of the gimbal module 100; second, the chamfering process effectively reduces the overall size of the first plate 1221, thereby helping to reduce the size of the chip circuit board 122 and the gimbal module 100. In addition, the bevel formed after chamfering is connected to the connecting end of the flexible plate 1223, which increases the effective length of the flexible plate 1223 and reduces the K value of the flexible plate 1223, thereby reducing the reaction force generated by it in tilt anti-shake motion and improving the anti-shake effect.
[0205] like Figure 10 and Figure 11 As shown, the first inner edge 12211 and the second inner edge 12212 of the first plate 1221 are connected by the first inclined edge 12215, the second inner edge 12212 and the third inner edge 12213 are connected by the second inclined edge 12216, the third inner edge 12213 and the fourth inner edge 12214 are connected by the third inclined edge 12217, and the fourth inner edge 12214 and the first inner edge 12211 are connected by the fourth inclined edge 12218. The first connecting end 122311 of the first flexible structure 12231 is connected to the first inclined edge 12215, and the second connecting end 122312 of the second flexible structure 12232 is connected to the third inclined edge 12217.
[0206] Furthermore, along the optical axis, the projection of the inclined extension of the flexible plate 1223 is parallel to the projection of the hypotenuse of the adjacent first plate 1221. As the length of the hypotenuse increases, the length of the corresponding inclined extension also increases. Compared to a chamfered design, the inclined extension changes from being inclined relative to the straight edge to being parallel to the hypotenuse. This can be understood as the inclined extension protruding outward relative to the un-chamfered first plate 1221, while it is parallel and recessed relative to the chamfered first plate 1221. The greater the degree of recess of the inclined extension, the lower the risk of interference with other components.
[0207] Specifically, along the optical axis, the projection of the first inclined extension 122321 of the first flexible structure 12231 is parallel to the projection of the first inclined side 12215 of the first plate 1221. When the length of the first inclined side 12215 increases, the length of the first inclined extension 122321 also increases. Along the optical axis, the projection of the second inclined extension 122322 of the second flexible structure 12232 is parallel to the projection of the third inclined side 12217 of the first plate 1221. When the length of the third inclined side 12217 increases, the length of the second inclined extension 122322 also increases.
[0208] Furthermore, the connecting end of the flexible plate 1223 is inclined to connect the inclined extension and the inclined side of the first plate 1221. While adapting to the extension direction of the flexible plate 1223, it avoids the breakage or detachment caused by the large force at the right-angle connection during tilting movement.
[0209] Specifically, the first connecting end 122311 of the first flexible structure 12231 is obliquely connected to the first inclined extension 122321 and the first inclined side 12215 of the first plate 1221, wherein the angle between the first connecting end 122311 and the first inclined side 12215 is an acute angle, and the angle between the first connecting end 122311 and the first inclined extension 122321 is an obtuse angle; the second connecting end 122312 of the second flexible structure 12232 is obliquely connected to the second inclined extension 122322 and the third inclined side 12217 of the first plate 1221, wherein the angle between the second connecting end 122312 and the third inclined side 12217 is an acute angle, and the angle between the second connecting end 122312 and the second inclined extension 122322 is an obtuse angle.
[0210] During tilt-based anti-shake motion, the bent portion of the flexible plate 1223 may also tilt up and down along the optical axis, which can easily cause interference with other structures. Therefore, this application designs the bent portion of the flexible plate 1223 as an inclined straight line, that is, the bent portion is inclined to connect two adjacent connecting portions, instead of rounded bends, to reduce the risk of interference.
[0211] Specifically, the first bending portion 122341 of the first flexible structure 12231 and the second bending portion 122342 of the second flexible structure 12232 are both straight. The first bending portion 122341 is obliquely connected to the adjacent first connecting portion 122331 and the second connecting portion 122351, and the second bending portion 122342 is obliquely connected to the adjacent third connecting portion 122332 and the fourth connecting portion 122352.
[0212] As can be seen from the foregoing, the height of the first plate 1221 is different from that of the second plate 1222. Therefore, all the above-mentioned tilting connection methods include tilting connections in the horizontal direction perpendicular to the optical axis and tilting connections in the vertical direction perpendicular to the bottom surface of the base 22.
[0213] Along the optical axis, the projection of the bent portion of the flexible plate 1223 is parallel to the projection of the hypotenuse of the nearest first plate 1221, so as to further reduce the lateral arrangement space of the flexible plate 1223, which is beneficial to reduce the size of the chip circuit board 122 and the gimbal module 100.
[0214] Specifically, along the optical axis, the projection of the first bent portion 122341 of the first flexible structure 12231 is parallel to the projection of the second inclined side 12216 of the first plate 1221, and the projection of the second bent portion 122342 of the second flexible structure 12232 is parallel to the projection of the fourth inclined side 12218 of the first plate 1221.
[0215] As described above, the first plate 1221 is fixed to the bottom of the imaging assembly 10, and the imaging assembly 10 is fixed to the movable carrier 23. Therefore, the first plate 1221 moves together with the movable carrier 23. The second plate 1222 is fixed to the base 22. The flexible plate 1223 is located on the outer periphery of the first plate 1221 and the inner periphery of the second plate 1222. It warps and deforms as the first plate 1221 rotates, while the intermediate frame 24 is located on the outer periphery of the movable carrier 23 and the inner periphery of the base 22.
[0216] It is understandable that, along the optical axis, there is an overlap between the projection of the intermediate frame 24 and the projection of the flexible plate 1223. During the tilt stabilization motion, the height of various parts of the flexible plate 1223 will change due to warping deformation, making it more prone to interference with the intermediate frame 24.
[0217] To further address the aforementioned issues, this application also improves the structure of the intermediate frame 24. Based on the highest point position of the flexible plate 1223 when it is tilted up, the bottom height of the corresponding position of the intermediate frame 24 is increased to increase the distance between the intermediate frame 24 and the flexible plate 1223 along the optical axis, thereby reducing the risk of interference.
[0218] As can be seen from the foregoing, during tilt anti-shake motion, the inclined extension and bending portion of the flexible plate 1223 will tilt up, and its height position will be higher than other parts of the adjacent flexible plate 1223. Therefore, this application mainly raises the position of the corresponding inclined extension and bending portion on the intermediate frame 24 to reduce the risk of interference.
[0219] In one embodiment of this application, the intermediate frame 24 includes frame sidewalls and frame corners between two adjacent frame sidewalls. The frame corners on the intermediate frame 24 corresponding to the inclined extensions and bends are designed to be inclined towards the object side along the optical axis. Figure 3 and Figure 5 As shown, the intermediate frame 24 has four frame sidewalls, and a frame corner is formed between two adjacent frame sidewalls. That is, the bottom of the frame corner of the intermediate frame 24 is composed of the bottom surface of the two adjacent frame sidewalls and the common edge of the two frame sidewalls, wherein the common edge is parallel to the optical axis.
[0220] In some examples, at least one frame sidewall of the intermediate frame 24 has a bottom surface that slopes towards the object side along the optical axis, and together with the adjacent frame sidewall, forms the bottom of the two frame corners, increasing the bottom height of the frame corners to avoid the chip circuit board 122 located on the bottom side 102. Specifically, one frame sidewall of the intermediate frame 24 has a protrusion 2421 that protrudes towards the image side. The protrusion 2421 gradually protrudes towards the image side along both sides of the frame sidewall in a direction towards the middle, forming an inclined shape on both sides of the bottom surface of the frame sidewall, so that the bottom height of the frame corner is higher than the lowest point of the bottom surface of the frame sidewall to avoid the flexible plate 1223. In this case, along the optical axis, the projection of the inclined extension does not overlap with the projection of the protrusion 2421.
[0221] More specifically, the protrusion 2421 is located on the bottom surface of the second frame sidewall 242 of the intermediate frame 24. In one example, the bottom surface of the second frame sidewall 242 of the intermediate frame 24 has only a beveled segment 24202. In another example, the bottom surface of the second frame sidewall 242 of the intermediate frame 24 has a straight segment 24201 and a beveled segment 24202. The straight segment 24201 is parallel to the first direction, and the straight segment 24202 intersects the straight segment 24201. More specifically, the straight segment 24201 is located on both sides of the second drive mechanism 252, and the beveled segment 24202 is located on both sides of the straight segment 24201.
[0222] The height of the end point of the inclined side segment 24202 closest to the nearest frame corner is higher than the height of the end point of the straight side segment 24201, so that the inclined side segment 24202 can form an upward inclined shape along the optical axis towards the nearest frame corner, thereby increasing the bottom height of the frame corner.
[0223] In another embodiment of this application, at least a portion of the bottom surface of the inclined extension and bent portion corresponding to the flexible plate 1223 on the intermediate frame 24 is raised. For example, the bottom surface height of one frame sidewall of the intermediate frame 24 is higher than the bottom surface height of other frame sidewalls, so as to increase the distance between the bottom surface of the intermediate frame 24 and the top surface of the chip circuit board 122 and reduce the risk of interference.
[0224] In some examples of this application, the frame sidewalls of the intermediate frame 24 can simultaneously have a design that increases the height of the frame corners and raises the height of the bottom surface, such as... Figure 5 , Figures 14-17 As shown, the bottom heights of the four frame sidewalls of the intermediate frame 24 are different. The bottom surface of the second frame sidewall 242, which has the second drive mechanism 252, has a straight edge section 24201 and a sloping edge section 24202. The height of the straight edge section 24201 is higher than the height of the highest point of the sloping edge section 24202. The height of the end point of the sloping edge section 24202 near the nearest frame corner is higher than the height of the end point near the straight edge section 24201, forming a protrusion 2421 that slopes upward toward the frame corner. The lowest point of the bottom surface of the second frame sidewall 242 is lower than the lowest point of the bottom surface of the other frame sidewalls. That is, the lowest point of the protrusion 2421 is the lowest point of the bottom surface of the intermediate frame 24, which raises the overall bottom surface height of the other frame sidewalls and increases the height distance between the intermediate frame 24 and the flexible plate 1223.
[0225] When the intermediate frame 24 rotates around the second direction, the protrusion 2421 with the inclined side segment 24202 can serve as a stop structure to limit the rotation angle of the intermediate frame 24.
[0226] In a specific example, a stop 2442 is provided on the frame side wall of the intermediate frame 24 opposite to the second drive mechanism 252. Specifically, the fourth frame side wall 244 of the intermediate frame 24 extends outward along the second direction to form a protruding stop 2442. The top side 101 of the stop 2442 contacts the fourth fixed side wall 294 of the fixed block 29 to provide a stop.
[0227] like Figure 20 As shown, the stop members 2442 are disposed on both sides of the fourth frame sidewall 244. Specifically, the stop members 2442 are disposed on both sides of the second frame extension arm 247 to accommodate the tilting and anti-shaking movement of the middle frame 24 around the second direction.
[0228] Furthermore, the bottom surface height of the fourth frame sidewall 244 of the intermediate frame 24 is higher than the bottom surface height of the other frame sidewalls, so as to further increase the height distance between the second frame extension arm 247 and the conductive component 255 on the sidewall and avoid interference between them.
[0229] In this application, the tilt motion is the motion of the movable part rotating around the rotation axis. During the motion, the movable part moves in a manner where one side is raised and the other side is lowered on both sides of the rotation axis. The rotation axis is parallel to the first direction or the second direction. Therefore, during the rotation of the intermediate frame 24, when one side of the fourth frame sidewall 244 is lowered to the lowest point, the top of the stop member 2442 contacts the fourth fixed sidewall 294 of the fixed block 29, thereby achieving a better stopping effect on the intermediate frame 24.
[0230] In some examples of this application, the bottom surfaces of the first frame sidewall 241 and the third frame sidewall 243 of the intermediate frame 24 may be implemented by increasing the bottom height at the frame corner position and / or at least part of the bottom surface height, as long as the frame sidewalls do not interfere with other structures.
[0231] In some examples, the four corners of the movable carrier 23 are set at a height higher than the lowest height of the frame sidewall of the intermediate frame 24, thereby preventing the four corners of the movable carrier 23 from becoming the lowest position during its tilting motion, and preventing it from interfering with the base 22 or the second plate 1222.
[0232] In one example, the bottom surface of at least one carrier sidewall on the movable carrier 23 is an upward-opening arc surface, and the lowest height of the arc surface is not lower than the lowest height of the inclined segment 24202. Specifically, the bottom surface of the second carrier sidewall 232 is an upward-opening arc surface, and the lowest height of the arc surface is not lower than the lowest height of the inclined segment 24202 on the second frame sidewall 242, so as to avoid the bottom surface of the movable carrier 23 interfering with the flexible plate 1223 during the tilt anti-shake movement.
[0233] In some examples, at least one sidewall of the intermediate frame 24 and the movable carrier 23 has a protrusion 2421 facing the image side, and both sides of the bottom surface of this sidewall have openings, such as... Figure 15 As shown, the protrusion 2421 is stepped from the middle of the bottom surface of the side wall to the corners on both sides, which increases the bottom height of the corners on both sides of the side wall and increases the clearance space of the side wall to the flexible plate 1223.
[0234] In this application, along the optical axis, the projection of the inclined extension of the flexible plate 1223 does not overlap with the projection of the frame sidewall and corner of the intermediate frame 24. The projection of the connecting part connected to the inclined extension overlaps with the projection of the straight edge segment 24201 of the intermediate frame 24, but does not overlap with the projection of the inclined edge segment 24202. While limiting the lateral dimensions of the flexible plate 1223 and the intermediate frame 24, interference between the inclined extension located at the highest point of the upturn and the intermediate frame 24 is further avoided.
[0235] Specifically, along the optical axis, the projection of the inclined extension does not overlap with the projection of the protrusion 2421.
[0236] Specifically, along the optical axis, the projections of the first inclined extension 122321 and the second inclined extension 122322 do not overlap with the projections of the frame sidewalls and the frame corners of the intermediate frame 24, while the projections of the first connecting part 122331 and the third connecting part 122332 overlap with the projections of the straight edge segment 24201 and the inclined edge segment 24202 of the intermediate frame 24.
[0237] In the assembled state, there is a certain gap between the top of the flexible plate 1223 and the bottom surface of the intermediate frame 24, so that the highest point of the flexible plate 1223 does not collide with the bottom surface of the intermediate frame 24 when it is warped and deformed.
[0238] In one example of this application, the gimbal assembly 20 further includes a buffer component to buffer the tilting movement of the movable carrier 23 and the intermediate frame 24 during the operation of the gimbal assembly 20, so as to reduce impact and noise.
[0239] In one example of this application, a metal insert is provided inside the base 22 to increase structural strength. The metal insert has a raised structure corresponding to the position of the second drive mechanism 252, so that the installation height of the second pre-pressing component 2521 is higher, raising the bottom height of the second substrate 2552, thereby preventing interference between the intermediate frame 24 and the first substrate 2551 during tilting.
[0240] It should be understood that in other examples of this application, the technical features described above can be combined to achieve the corresponding functions.
[0241] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.
Claims
1. A gimbal module, characterized in that, include: Base; An intermediate frame, which is movably disposed on the base; An imaging component, defining an optical axis, is movably disposed within the intermediate frame. The imaging component includes a photosensitive component, comprising a photosensitive chip and a circuit board. The circuit board includes a first board body, a second board body, and a flexible board body connecting the two. The photosensitive chip is disposed on and electrically connected to the first board body, and the second board body is disposed on the base. The first board body includes a side. The flexible plate includes an inclined extension connected to the first plate, and the angle between the inclined extension and the side of the first plate is less than 90°; when the photosensitive chip tilts about a direction perpendicular to the optical axis, the inclined extension tilts up along the optical axis.
2. The gimbal module as described in claim 1, characterized in that, The intermediate frame includes frame sidewalls and frame corners between two adjacent frame sidewalls, and the first plate also includes corners between two adjacent sidewalls, with the inclined extension close to the corners of the first plate. Along the optical axis, the projection of the inclined extension does not overlap with the projection of the corner of the frame.
3. The gimbal module as described in claim 2, characterized in that, When the inclined extension is raised to its highest point, the inclined extension does not contact the side wall of the frame or the corner of the frame; when the inclined extension is raised to its lowest point, the inclined extension does not contact the base.
4. The gimbal module as described in claim 3, characterized in that, At least one of the frame sidewalls of the intermediate frame has a protrusion that projects toward the image side, and the projection of the inclined extension does not overlap with the projection of the protrusion along the optical axis.
5. The gimbal module as described in claim 1, characterized in that, The flexible plate includes a first flexible structure and a second flexible structure. The first plate is disposed inside the second plate. The first flexible structure and the second flexible structure extend to at least two sides between the first plate and the second plate. The first flexible structure includes a first inclined extension, and the second flexible structure includes a second inclined extension. The first inclined extension and the second inclined extension are rotationally symmetrical.
6. The gimbal module as described in claim 5, characterized in that, The side of the first plate includes a first inner edge, a second inner edge, a third inner edge, and a fourth inner edge connected in sequence. The first plate also includes a first inner corner between the first inner edge and the second inner edge, a second inner corner between the second inner edge and the third inner edge, a third inner corner between the third inner edge and the fourth inner edge, and a fourth inner corner between the fourth inner edge and the first inner edge. The second plate includes a first outer edge, a second outer edge, a third outer edge, and a fourth outer edge connected in sequence. The second plate also includes a first outer corner between the first outer edge and the second outer edge, a second outer corner between the second outer edge and the third outer edge, a third outer corner between the third outer edge and the fourth outer edge, and a fourth outer corner between the fourth outer edge and the first outer edge.
7. The gimbal module as described in claim 6, characterized in that, The first inclined extension is connected to the second inner edge of the first plate. The first inclined extension is close to the first inner corner. The angle between the straight line where the first inclined extension is located and the straight line where the second inner edge is located is α, where 10°≤α<90°.
8. The gimbal module as described in claim 6, characterized in that, The second inclined extension is connected to the fourth inner edge of the first plate. The second inclined extension is close to the third inner corner. The angle between the straight line containing the second inclined extension and the straight line containing the fourth inner edge is β, where 10°≤β<90°.
9. The gimbal module as described in claim 6, characterized in that, The first inner corner, the second inner corner, the third inner corner and the fourth inner corner of the first plate have a first inclined side, a second inclined side, a third inclined side and a fourth inclined side, respectively. The first inclined extension is connected to the first inclined side and the second inclined extension is connected to the third inclined side.
10. The gimbal module as described in claim 9, characterized in that, The angle between the straight line containing the first inclined extension and the straight line containing the second inner edge is an obtuse angle, and the angle between the straight line containing the second inclined extension and the straight line containing the fourth inner edge is an obtuse angle.
11. The gimbal module as described in claim 9, characterized in that, The straight line containing the first inclined extension is parallel to the straight line containing the first hypotenuse, and the straight line containing the second inclined extension is parallel to the straight line containing the third hypotenuse.
12. The gimbal module as described in claim 9, characterized in that, The first flexible structure further includes a first bent extension and a first outlet end, the first bent extension being connected to the first inclined extension and the first outlet end, and the first outlet end being connected to the second plate; the second flexible structure further includes a second bent extension and a second outlet end, the second bent extension being connected to the second inclined extension and the second outlet end, and the second outlet end being connected to the second plate; wherein the first outlet end and the second outlet end are rotationally symmetrical.
13. The gimbal module as described in claim 12, characterized in that, The first inclined extension and the first outlet end are respectively connected to the opposite corners of the first plate and the second plate, and the second inclined extension and the second outlet end are respectively connected to the opposite corners of the first plate and the second plate; wherein, the first inclined extension is connected to the first inner corner of the first plate, the first outlet end is connected to the third outer corner of the second plate, the second inclined extension is connected to the third inner corner of the first plate, and the second outlet end is connected to the first outer corner of the second plate.
14. The gimbal module as described in claim 12, characterized in that, In the initial state, the bottom surface height of the first plate is higher than the bottom surface height of the second plate, and the height of the first flexible structure decreases from the first inclined extension to the first outlet end; the height of the second flexible structure decreases from the second inclined extension to the second outlet end.
15. The gimbal module as described in claim 12, characterized in that, The first bent extension includes a first connecting portion, a first bend portion, and a second connecting portion connected in sequence; the second bent extension also includes a third connecting portion, a second bend portion, and a fourth connecting portion connected in sequence; wherein, the first inclined extension is connected to the first connecting portion, the first bend portion is connected to the first connecting portion and the second connecting portion, and the first leading end is connected to the second connecting portion; the second inclined extension is connected to the third connecting portion, the second bend portion is connected to the adjacent third connecting portion and the fourth connecting portion, and the second leading end is connected to the fourth connecting portion.
16. The gimbal module as described in claim 15, characterized in that, The straight line containing the first bend is parallel to the straight line containing the second hypotenuse, and the straight line containing the second bend is parallel to the straight line containing the fourth hypotenuse.
17. The gimbal module according to claim 2, characterized in that, The bottom surface of the frame sidewall has a sloping section that slopes toward the object and extends to the frame corner, such that the height of the frame corner is higher than the height of the frame sidewall.
18. The gimbal module according to claim 4, characterized in that, The distance from the protrusion to the base is less than the distance from the side wall of the frame to the base. When the intermediate frame tilts, the protrusion contacts the base to provide a stop.
Citation Information
Patent Citations
Imaging apparatus and method for assembling the same
US20210239933A1
Photosensitive assembly, camera module and electronic apparatus
WO2025044365A1