Anti-shock anti-shake lens

Abstract

The invention discloses an anti-shock anti-shake lens, which comprises a lens assembly, a carrier for bearing the lens assembly and a bracket for mounting the carrier, the driving mechanism comprises an AF coil, an OIS coil and a common magnet; the AF coil and the common magnet cooperate to drive the carrier to move along the optical axis direction relative to the support to drive the lens assembly to realize automatic focusing. The OIS coil and the common magnet are matched to drive the support to move relative to the base along an XY plane perpendicular to the optical axis to drive the lens assembly to achieve anti-shake in the X-axis direction and the Y-axis direction. The device further comprises a three-dimensional elastic piece and an AF elastic piece used for achieving carrier AF reset. The three-dimensional elastic sheet is used for assisting the AF resetting of the carrier and realizing the OIS resetting of the bracket; a limiting block is arranged on the face, facing the base, of the support, and when the limiting block abuts against the base, a gap is formed between the OIS coil and the shared magnet. According to the invention, the OIS coil can be prevented from colliding with the magnet when the lens is impacted by external force.

Description

Technical Field

[0001] This invention belongs to the field of optical lens technology, and in particular relates to an impact-resistant and image-stabilized lens. Background Technology

[0002] In the technology system of camera motors, the three-dimensional spring is a key component for realizing the core functions of autofocus (AF) and optical image stabilization (OIS). In existing technologies, the conventional way for this type of spring to achieve dual functions of AF and OIS is to build a separate functional area. Specifically, two sets of springs bent at 90 degrees are used to form the OIS functional area. At the same time, at least one set of suspension wire connection structure is set at the bottom of the OIS functional area to form the AF functional area. The combination of the above structures completes the output of the camera motor's image stabilization and focusing functions.

[0003] With the rapid development of the consumer electronics industry, end consumers are placing increasingly higher demands on the thinner and lighter design of electronic products such as mobile phones and tablets. As the core imaging component of electronic products, the size of the camera module directly affects the overall thinner and lighter effect of the product. However, in the existing technology, camera modules equipped with the traditional three-dimensional spring-loaded structure generally have a relatively large size, making it difficult to adapt to the thinner and lighter design requirements of electronic products. On the other hand, simply reducing the size of the camera module to meet the demand for thinner and lighter designs would lead to a significant decrease in the module's shooting performance, failing to meet the end consumers' demand for high-standard shooting effects.

[0004] The product's thinner and lighter design results in very small gaps between components. In the event of an impact, the magnet is prone to colliding with the OIS coil, causing damage to the magnet or breakage of the OIS coil, thus rendering the product's anti-shake function ineffective. Summary of the Invention

[0005] The purpose of this invention is to provide an impact-resistant image-stabilized lens that partially solves or alleviates the above-mentioned deficiencies in the prior art, and can prevent the OIS coil from colliding with the magnet when the lens is subjected to external impact.

[0006] To solve the aforementioned technical problems, the present invention specifically adopts the following technical solution: A first aspect of the present invention is to provide an impact-resistant image-stabilized lens, characterized in that: it includes a lens assembly, a carrier for supporting the lens assembly, and a bracket for mounting the carrier; it also includes a drive mechanism, the drive mechanism including an AF coil, an OIS coil, and a common magnet; the AF coil and the common magnet cooperate to drive the carrier to move relative to the bracket along the optical axis, thereby enabling the lens assembly to autofocus; the OIS coil and the common magnet cooperate to drive the bracket to move relative to the base along an XY plane perpendicular to the optical axis, thereby enabling the lens assembly to achieve image stabilization in the X and Y axes; It also includes a three-dimensional spring sheet and an AF spring sheet for realizing carrier AF reset; the three-dimensional spring sheet is used to assist carrier AF reset and realize support OIS reset; A limit block is provided on the side of the bracket facing the base. When the limit block abuts against the base, there is a gap between the OIS coil and the common magnet.

[0007] Furthermore, the limiting blocks are four in number, respectively located on the line connecting the midpoint of the bracket and its four corners.

[0008] Furthermore, a receiving groove is formed on the base at a position corresponding to the position of the limiting block, and the roughness of the bottom of the receiving groove is lower than that of the base plane.

[0009] Furthermore, the three-dimensional spring includes a spring body, on which an AF spring wire for assisting carrier AF reset is provided; it also includes an elastic baffle disposed at the corner of the spring body perpendicular to the spring body, the elastic baffle acting on the side wall of the support to achieve OIS reset; the spring body, AF spring wire and elastic baffle are all integrally etched from the same base material.

[0010] Furthermore, the AF spring includes a carrier connecting part for connecting with the carrier and a bracket connecting part for connecting with the bracket; an AF main spring wire for carrier AF reset is provided between the carrier connecting part and the bracket connecting part, and the AF main spring wire includes a functional section and a first avoidance section for avoiding the AF dispensing groove on the carrier.

[0011] Furthermore, the functional segment includes a first functional segment and a second functional segment arranged in parallel, the first functional segment and the second functional segment being connected by an arc segment; the first functional segment being connected to the carrier connecting part by a connecting segment; the second functional segment being connected to the first clearance segment at an acute angle, such that the AF dispensing groove on the carrier is located within the angle formed by the clearance segment and the second functional segment.

[0012] Furthermore, a third functional section is provided between the first clearance section and the support connection; the third functional section is bent at an acute angle.

[0013] Furthermore, the shared magnet consists of four magnets, arranged in a rectangular pattern in pairs opposite each other along the X and Y axes of the support; the OIS coil consists of four sets of coils arranged on the base directly below the four shared magnets; and the AF coil is fixed on the carrier and located inside the four shared magnets.

[0014] Furthermore, the shared magnet is rectangular, and the OIS coil is hollow and waist-shaped; the magnetic force generated by the two long sides of the OIS of all the shared magnets respectively cooperates with the inner and outer magnetic poles of the magnet to form a resultant force in the same direction.

[0015] Furthermore, the four shared magnets all have the same magnetic pole facing inward; the AF coil is a ring with four long sides, each of which is matched with one of the four magnets.

[0016] Beneficial effects:

[0017] In this invention, the limiting block arranged on the support facing the base is the first force-bearing structure during impact. When falling and impacting, the limiting block first comes into contact with the base, and its own structural strength forcibly limits the displacement of the support towards the base. It also strictly ensures that a safe gap is maintained between the OIS coil and the shared magnet during contact. Structurally, it completely eliminates direct collision and squeezing of the core driving components, avoiding irreversible damage such as coil breakage and deformation, and magnet pole shift. It fundamentally prevents the lens stabilization and focusing functions from failing due to impact. Compared with traditional anti-collision structures, the protection is more targeted and precise.

[0018] The scientific arrangement of the four limiting blocks achieves all-round protection without blind spots and evenly distributes impact loads. The number of the four limiting blocks is precisely matched with the geometric characteristics of the square bracket and the rectangular arrangement of the four shared magnets. They are located on the line connecting the geometric center of the bracket and the four corners. This not only eliminates the protection blind spots of the bracket and ensures that each set of magnets and coil drive units are within the protection range, but also enables four points to simultaneously abut against the base during impact, evenly distributing the inertial load to the four limiting blocks. This avoids uneven deformation and breakage of the limiting structure caused by localized stress on the bracket, while ensuring the structural integrity of the base and bracket and preventing deformation of the assembly surface caused by localized stress.

[0019] The base features a matching receiving groove design, further enhancing the accuracy and stability of the limiting protection. The receiving groove on the base, which precisely aligns with the limiting block, not only limits the contact area of ​​the limiting block, preventing it from shifting laterally due to inertia during impact and ensuring that all four limiting blocks contact synchronously and with uniform load, but also prevents the impact force of the limiting block from acting on the overall plane of the base, protecting the flatness of the base as the assembly basis for the coil and magnet. At the same time, the space of the receiving groove provides a slight circumferential limit to the limiting block, making the displacement limit of the bracket more precise and ensuring that the OIS coil and magnet land safely across the entire area during impact.

[0020] The low roughness achieved by the separate precision machining of the bottom of the receiving groove in this invention ensures high flatness and smoothness of the contact surface, effectively preventing chipping and debris during impact, and avoiding debris from getting stuck in precision components such as three-dimensional springs and coils inside the module. This provides secondary protection against impact and prevents secondary functional failures caused by debris after impact. On the other hand, the other mounting surfaces of the base maintain a slightly higher roughness, which effectively increases the contact area and adhesion between the adhesive and the AF / OIS coil, improves the assembly firmness of the coil, and prevents the coil from falling off or shifting when the lens moves. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. In all the drawings, similar elements or parts are generally identified by similar reference numerals. The elements or parts in the drawings are not necessarily drawn to scale. Obviously, the drawings described below are some embodiments of the present invention, and those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0022] Figure 1 This is a schematic diagram of the structure of the present invention.

[0023] Figure 2 This is a schematic diagram of the OIS coil and the common magnet.

[0024] Figure 3 This is a schematic diagram of the AF coil and the common magnet.

[0025] Figure 4 A schematic diagram of the carrier and the shared magnet.

[0026] Figure 5 This is a schematic diagram of the structure of the three-dimensional spring sheet in this invention.

[0027] Figure 6 This is a schematic diagram of the AF spring sheet in this invention.

[0028] Figure 7 This is a schematic diagram of the assembly of the AF spring sheet with the carrier and support in this invention.

[0029] Figure 8 This is an enlarged view of the AF spring clip clearance section in this invention.

[0030] Figure 9 This is a schematic diagram of the limiting block in this invention.

[0031] Figure 10 This is an enlarged view of the limiting block in this invention.

[0032] Summary of attached labeling and identification: 1-Lens assembly, 2-Housing shell, 3-AF spring, 4-Bracket, 5-Common magnet, 6-Carrier, 7-3D spring, 8-OIS coil, 9-Base, 10-AF coil (actually the mounting bracket for the AF coil in the picture), 31-Carrier connection, 32-Bracket connection, 33-First functional section, 34-Second functional section, 35-Arc-shaped section, 36-Connecting section, 37-First clearance section, 38-Third functional section, 61-AF dispensing groove, 62-Weight reduction hole, 71-Spring body, 41-Limiting block, 72-Elastic baffle, 76-AF spring wire, 91-Receiving groove. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0034] In this document, suffixes such as "module," "part," or "unit" used to denote elements are used only for the purpose of illustrative purposes and have no specific meaning in themselves. Therefore, "module," "part," or "unit" may be used interchangeably.

[0035] In this document, the terms "upper," "lower," "inner," "outer," "front," "rear," "one end," and "the other end," 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 the present invention and for 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 the present invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0036] In this document, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," "connected," etc., should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, a direct connection, or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0037] In this document, "and / or" includes any and all combinations of one or more of the listed related items.

[0038] In this article, "multiple" means two or more, that is, it includes two, three, four, five, etc.

[0039] Example 1:

[0040] like Figure 1As shown, the present invention provides an impact-resistant image-stabilized lens, including a lens assembly 1, a carrier 6 for supporting the lens assembly 1, and a bracket 4 for mounting the carrier 6; it also includes a drive mechanism, which includes an AF coil 10, an OIS coil 8, and a common magnet 5; the AF coil 10 and the common magnet 5 cooperate to drive the carrier 6 to move relative to the bracket 4 along the optical axis, thereby enabling the lens assembly 1 to autofocus; the OIS coil 8 and the common magnet 5 cooperate to drive the bracket 4 to move relative to the base 9 along an XY plane perpendicular to the optical axis, thereby enabling the lens assembly 1 to achieve image stabilization in the X and Y axes.

[0041] In this invention, the base 9 provides a fixed reference for the entire lens; the support 4, as the middle layer, supports the carrier 6 and enables its own XY plane movement relative to the base 9 for image stabilization; the carrier 6, as the innermost layer, directly supports the lens assembly 1 and enables its movement relative to the optical axis (Z-axis) of the support 4 for focusing. This hierarchical structure achieves physical isolation and decoupling of Z-axis focusing and XY-axis image stabilization, preventing interference between the two movements.

[0042] This invention employs a drive mechanism where the AF coil 10 and OIS coil 8 share the same magnet. This breaks through the traditional design of independently configured magnets for the AF and OIS systems in image stabilization lenses, avoiding the problems of dispersed magnetic circuits and large space occupation caused by traditional solutions where AF and OIS each use a separate set of magnets. The shared magnet 5 in this invention provides a magnetic field source for both AF and OIS, simplifying the structure, reducing the number of magnets and assembly complexity, and enhancing magnetic field strength through a centralized magnetic circuit. Within the same volume, the shared magnet 5 can be designed with a larger volume or higher magnetic energy product, increasing the magnetic field density.

[0043] The AF coil 10 is fixed to the carrier 6. When energized, it experiences a Lorentz force along the optical axis, which pushes the carrier 6 relative to the support 4 to move along the Z-axis, thus achieving focusing. The OIS coil 8 is fixed to the base 9. By controlling the direction and magnitude of the current in the coils along the X and Y axes, a Lorentz force along the X or Y axis can be generated, driving the support 4 to move relative to the base 9 in the XY plane to compensate for shooting shake.

[0044] Specifically, such as Figures 2-4As shown, in this embodiment, there are four shared magnets 5, arranged in a rectangular pattern in pairs opposite each other along the X and Y axes of the support 4; the OIS coils 8 are four sets distributed on the base 9 directly below the four shared magnets 5; the AF coils 10 are fixed on the carrier 6 and located inside the four shared magnets 5. More specifically, the shared magnets 5 are rectangular, and the OIS coils 8 are hollow and waist-shaped; the magnetic forces generated by the two long sides of the OIS of all the shared magnets 5 respectively cooperate with the inner and outer magnetic poles of the magnets to form a resultant force in the same direction. In addition, the four shared magnets 5 all have the same magnetic pole facing inward; the AF coils 10 are rings with four long sides, each of which cooperates with one of the four magnets.

[0045] In this embodiment, the bracket 4 is rectangular. Four magnets are fixed at the midpoints of the four sides of the bracket 4, with two magnets facing each other along the X-axis and two facing each other along the Y-axis, so that the magnetic field forms a symmetrical cross-shaped distribution in the XY plane. Compared with the diagonal arrangement of magnets at the four corners in traditional image-stabilized lenses, the rectangular arrangement of magnets can generate a linear magnetic field along the X and Y axes, rather than a tilted magnetic field along the diagonal direction, thus avoiding the force decomposition loss caused by the mismatch between the magnetic field direction and the driving demand direction in traditional designs.

[0046] The four magnets are positioned in pairs, with the magnetic fields of the two magnets in opposite directions along the X-axis and the same applies along the Y-axis. When the OIS coil 8 is energized, the two pairs of coils generate equal and opposite driving forces, making the translation of the bracket 4 in the XY plane smoother and preventing the bracket 4 from tilting or rotating due to excessive force on one side, thus ensuring the accuracy of image stabilization compensation.

[0047] The rectangular arrangement distributes the magnets along the four sides of the support, maximizing the use of the outer perimeter space of the support and allowing the magnets to be designed as larger rectangular structures (with lengths that fit the four sides of the support). Compared to the smaller magnets at the four corners, the magnets have higher magnetic flux, providing a magnetic field basis for enhanced driving force.

[0048] Four sets of OIS coils 8 are located directly below the four magnets. The OIS coils 8 are designed as hollow, waist-shaped structures, with semicircular ends and a parallel long side in the middle. The two long sides of the waist-shaped coil correspond parallel to the two long sides of the rectangular magnets. Figure 2 As shown, taking the X-axis + direction as an example, the inner side of the magnet on the X-axis is the N pole and the outer side is the S pole. The current directions of the inner and outer long sides of the OIS coil 8 are opposite, so that the two long sides of the OIS coil 8 generate a thrust in the X+ direction with the two poles of the common magnet 5, thereby causing the support 4 to move in the X+ direction.

[0049] The AF coil 10 is fixed to the carrier 6 and located inside the four shared magnets 5. A radial magnetic field is formed inside the four shared magnets 5, with the inner side of the magnet being the N pole and the outer side the S pole, and the magnetic field direction pointing from the inside to the outside. The AF coil 10 is positioned around the carrier 6 inside the magnets, and its current direction is designed to be perpendicular to the radial magnetic field. According to the left-hand rule, this generates a Lorentz force along the optical axis. Because the coil is located in the strong magnetic field region inside the magnets, and the coil's circumference can be adapted to the inner contour of the four magnets, the length of the effective cut magnetic field lines is maximized, directly improving the driving force for AF focusing.

[0050] In addition, the AF coil 10 is located inside the common magnet 5, and the OIS coil 8 is located on the common magnet 5. The two are spatially layered, avoiding electromagnetic interference between the coils and ensuring independent control of AF focusing and OIS image stabilization. The bracket 4 supports the common magnet 5, the carrier 6 supports the AF coil 10, and the base 9 supports the OIS coil 8. The three-layer structure is tightly nested with no redundant space, which can meet the stringent requirements of miniaturization of lens modules in consumer electronic devices such as smartphones.

[0051] This embodiment also includes an AF spring 3 for resetting the carrier 6 and the stereo spring 7 described in Embodiment 1. The stereo spring 7 is used to assist in the AF reset of the carrier 6 and the OIS reset of the bracket 4. After the driving current disappears, the elastic deformation of the spring force causes the moving parts (carrier 6 / bracket 4) to return to their initial positions, ensuring that the lens maintains its reference posture when not in operation or after the driving is completed, providing a stable starting point for the next focusing / image stabilization.

[0052] It also includes a spring wire mechanism as described in Embodiment 1 for resetting the AF of the carrier 6 and the OIS of the support 4. Specifically, the spring wire mechanism includes a three-dimensional spring 7 and an AF spring 3 for resetting the carrier 6. The three-dimensional spring 7 is used to assist in resetting the AF of the carrier 6 and the OIS of the support 4. After the driving current disappears, the elastic deformation of the spring force causes the moving parts (carrier 6 / support 4) to return to their initial positions, ensuring that the lens maintains a reference posture when not in operation or after the driving is completed, providing a stable starting point for the next focusing / image stabilization.

[0053] like Figure 5 As shown, the three-dimensional spring 7 includes a spring body 71, on which an AF spring wire 76 is provided for assisting the carrier 6AF in resetting; it also includes an elastic baffle 72 disposed at the corner of the spring body 71 and perpendicular to the spring body 71, the elastic baffle 72 acting on the side wall of the support 4 to achieve OIS resetting; the spring body 71, the AF spring wire 76 and the elastic baffle 72 are all integrally etched from the same base material.

[0054] The three-dimensional spring 7 is a key component in the spring wire mechanism that combines AF auxiliary reset and OIS core reset. It is an integrated three-dimensional molding structure, consisting of three parts: spring body 71, AF spring wire, and elastic baffle 72. The three parts are integrally etched from the same base material without any assembly or splicing links.

[0055] The spring body 71 is the basic support structure of the three-dimensional spring 7, providing support for the installation of the entire three-dimensional spring 7 and the layout of other functional components. It is an integrated molded carrier 6 for the AF spring wire 76 and the elastic baffle 72. Its structural form is adapted to the internal space layout of the camera module, and forms a precise positional match with the bracket 4, carrier 6 and base 9 of the image stabilization lens, ensuring the stable installation of the three-dimensional spring 7 in the module.

[0056] The AF spring wire 76 is mounted on the spring body 71. Its function is to assist the carrier 6 in achieving AF reset. It is an auxiliary structure for AF reset and forms an AF reset cooperation system with the main AF spring wire of the AF spring 3. During the AF operation of the image-stabilized lens, the carrier 6 moves backward along the optical axis to achieve autofocus. The AF spring wire 76 provides auxiliary elastic reset force through its own elastic deformation. Together with the main AF spring wire, it makes the AF reset of the carrier 6 more accurate and stable, avoiding problems such as reset deviation and jamming of the carrier 6, and improving the accuracy and stability of AF focusing.

[0057] The elastic baffle 72 is a functional component of the three-dimensional spring 7 that enables the core OIS reset. It is located at the corner of the spring body 71 and is perpendicular to the spring body 71. This three-dimensional structure breaks through the spatial limitations of the planar spring, allowing the elastic baffle 72 to act directly on the side wall of the bracket 4. During the OIS operation of the image-stabilized lens, the bracket 4 moves along the XY plane perpendicular to the optical axis to achieve optical image stabilization. The elastic baffle 72, through contact and abutment with the side wall of the bracket 4, uses its own elastic deformation to provide elastic reset force, driving the bracket 4 to accurately reset after displacement, achieving OIS reset in the X and Y axis directions. It is the power source for the OIS reset of the bracket 4.

[0058] The spring body 71, AF spring wire 76, and elastic baffle 72 are formed by integral etching molding of the same base material, without splicing gaps or connection nodes. The components form an integrated structure that can withstand repeated elastic deformation during the operation of the camera module, making it less prone to breakage or detachment, thus improving the service life and reliability of the spring wire mechanism. The integrated molding process ensures a high degree of uniformity in the mechanical properties of each component. The auxiliary reset of the AF spring wire 76 and the OIS reset of the elastic baffle 72 can form a precise mechanical synergy with the supporting role of the spring body 71, avoiding reset deviations caused by splicing errors. The integrated etching molding process can complete the processing of all components in one go, eliminating the need for subsequent splicing and assembly. This improves production efficiency and reduces assembly errors, meeting the needs of large-scale production of camera modules and reducing the overall assembly difficulty of the module.

[0059] like Figure 6 As shown, the AF spring 3 includes a carrier connecting part 31 for connecting with the carrier 6 and a bracket connecting part 32 for connecting with the bracket 4; an AF main spring wire for AF reset of the carrier 6 is provided between the carrier connecting part 31 and the bracket connecting part 32. The AF main spring wire includes a functional section and a first avoidance section 37 for avoiding the AF dispensing groove 61 on the carrier 6.

[0060] The AF spring 3 is a dedicated component for AF reset in the spring wire mechanism. It bears the main elastic power output for AF reset of the carrier 6 along the optical axis. The whole is a planar elastic structure, consisting of three parts: carrier connection part 31, bracket connection part 32, and AF main spring wire. The AF reset of the carrier 6 is achieved through an outer fixed and middle elastic deformation structure. At the same time, a precise avoidance design is made for the structure of the carrier 6, which solves the structural interference problem in the module assembly.

[0061] The carrier connection part 31 is the fixed connection interface between the AF spring 3 and the image-stabilized lens carrier 6. Its structural shape is adapted to the connection position design of the carrier 6, enabling a precise and stable connection with the carrier 6, allowing the AF spring 3 and the carrier 6 to form a synchronously moving whole. During AF operation, the displacement of the carrier 6 along the optical axis will directly drive the carrier connection part 31 to move synchronously, which will then be transmitted to the central AF main spring wire, providing the power basis for the elastic deformation of the AF main spring wire, and is the first node for the transmission of AF reset force.

[0062] The bracket connection 32 is the fixed connection interface between the AF spring 3 and the lens assembly 1 bracket 4. The stable connection between the bracket connection 32 and the bracket 4 provides a fixed support for the outer side of the AF spring 3, providing a reaction force basis for the elastic deformation of the AF main spring wire. Throughout the entire AF operation, the bracket connection 32 remains relatively stationary with respect to the bracket 4, forming a displacement difference with the moving carrier connection 31, thereby causing the central AF main spring wire to undergo elastic deformation, which in turn releases the elastic restoring force to drive the carrier 6 to reset.

[0063] The AF main spring wire is an elastic functional component connecting the carrier connection part 31 and the support connection part 32. It bears the main elastic power output for the AF reset of the carrier 6 and is divided into two parts: a functional section and a first clearance section 37. The functional section is the core area of ​​the AF main spring wire for AF reset. It stores and releases elastic potential energy through its own elastic deformation, providing direct elastic power for the displacement and reset of the carrier 6 along the optical axis. When the carrier 6 moves along the optical axis with the AF drive mechanism, the functional section undergoes elastic deformation with the movement of the carrier connection part 31. When the driving force of the AF drive mechanism disappears, the functional section drives the carrier connection part 31 to reset synchronously through its own elastic restoring force, thereby driving the carrier 6 to accurately return to the initial position, realizing the reset after AF autofocus. It is the core power source for AF reset.

[0064] The first avoidance section 37 is a precisely designed avoidance area for the AF main spring wire relative to the structure of the carrier 6. Its function is to precisely avoid the AF dispensing groove 61 on the carrier 6. This is an important design feature that adapts the spring wire mechanism to the module assembly and improves the module's reliability. During the assembly of the image-stabilized lens, AF damping adhesive is applied to the AF dispensing groove 61 of the carrier 6 to improve the smoothness and stability of AF movement. If the AF main spring wire does not have an avoidance design, its structure will interfere with the AF dispensing groove 61 and the damping adhesive inside the groove, resulting in inaccurate dispensing operations. This makes the dispensing operation more precise and stable, thus improving the assembly reliability and AF performance of the image-stabilized lens module.

[0065] like Figure 7 , Figure 8 As shown, more specifically, the functional segment includes a first functional segment 33 and a second functional segment 34 arranged in parallel. The first functional segment 33 and the second functional segment 34 are connected by an arc segment 35. The first functional segment 33 is connected to the carrier connecting part 31 by a connecting segment 36. The second functional segment 34 is connected to the first clearance segment 37 at an acute angle, so that the AF glue groove 61 on the carrier 6 is located within the angle formed by the clearance segment and the second functional segment 34.

[0066] During module assembly, AF damping adhesive needs to be applied to the AF dispensing groove 61 to improve the smoothness of the carrier 6AF movement. The dispensing groove is located within the acute angle formed by the elastic wire. The elastic wire structure will not block or cover the dispensing groove, and the dispensing equipment can accurately dispense adhesive into the groove without obstruction, ensuring the accurate position and amount of damping adhesive application, and improving the convenience and accuracy of assembly.

[0067] In addition, in this embodiment, a third functional section 38 is provided between the first clearance section 37 and the support connection part 32. The third functional section 38 is bent at an acute angle. The third functional section 38 is located in the transition area of ​​the AF main elastic wire from the front end elastic deformation first functional section 33 and second functional section 34 to the rear end rigid fixed end. It is an important part of the complete elastic functional system of the AF main elastic wire. It transforms the originally idle transition section into an elastic reset functional area, allowing the elastic functional section of the AF main elastic wire to extend from the carrier connection part side to the near support connection part side. This realizes the efficient utilization of the full length of the AF main elastic wire in the elastic deformation area and avoids functional redundancy in the structural section.

[0068] The acute-angle bend in the structure effectively increases the effective elastic deformation length of the third functional segment 38 without increasing the overall space occupied by the spring wire. When the carrier causes the AF main spring wire to deform, the bend allows the third functional segment 38 to deform more fully, storing more elastic potential energy and releasing a stronger elastic recovery force. This further enhances the synergistic recovery effect with the first functional segment 33 and the second functional segment 34, allowing the AF main spring wire to adapt to a wider range of AF displacement requirements of the carrier and providing structural support for high-precision shooting.

[0069] In this embodiment, the carrier connecting part 31 is annular and has pin holes for riveting with the carrier 6. The bracket connecting parts 32 are four in a rectangular arrangement, and each bracket connecting part 32 has pin holes for connecting with the bracket 4.

[0070] like Figure 9 , Figure 10 As shown, in this embodiment, a limited 41-bit block is provided on the side of the bracket 4 facing the base 9. When the limited 41-bit block abuts against the base 9, there is a gap between the OIS coil 8 and the common magnet 5.

[0071] The 41-position limiter is positioned on the side of the bracket 4 facing the base 9. This side is the mating surface between the bracket 4 and the base 9, and it is also the key force-bearing surface where the bracket 4 and the base 9 first come into contact and transmit the impact load when the electronic product is dropped or impacted. Placing the 41-position limiter on this core contact surface allows it to absorb and disperse the impact load immediately upon impact, acting as a force-bearing buffer between the bracket 4 and the base 9, rather than allowing the bracket 4 itself or its core driving components to directly bear the impact force.

[0072] The OIS coil 8 and the shared magnet 5 are the driving components of OIS. The accuracy of their cooperation directly determines the realization of focusing and image stabilization functions. If a direct collision occurs, it will cause irreversible structural damage such as coil breakage, magnet pole displacement, coil deformation, etc., which will directly cause the lens image stabilization and focusing (in this embodiment, the shared magnet 5 also has an AF function) to fail. Therefore, it is the primary object of impact protection.

[0073] The gap between the limit block 41 and the base 9 is precisely calculated and reserved in advance based on parameters such as the OIS movement stroke of the bracket 4, the inertial displacement during impact, and the height of the limit block 41. The height and placement of the limit block 41 are all designed to accommodate this gap. The height of the limit block 41 directly determines the maximum safe travel of the bracket 4 towards the base 9. When the limit block 41 abuts against the base 9, the displacement of the bracket 4 is forcibly limited to this safe travel. At this time, the distance between the OIS coil 8 and the common magnet 5 is exactly within the preset safe protection gap range, which neither affects normal movement nor fails to provide impact protection.

[0074] In this embodiment, the 41-bit limit block consists of four blocks, which are respectively located on the line connecting the midpoint of the bracket 4 and its four corners.

[0075] The camera motor bracket 4 is a standard rectangular frame structure. The four right-angled ends are the key points where the bracket 4 is most likely to collide with the base 9 during an impact. The four limit blocks correspond to the four geometric positions of the bracket 4, achieving all-round circumferential protection for the entire bracket 4. There are four common magnets 5 arranged in a rectangular pattern in pairs on the X and Y axes of the bracket 4. Each magnet corresponds to a set of OIS coils 8, which are the core drive units that need to be protected. The OIS coils 8 are set between two limit blocks, so that each core drive unit is within the protection coverage of the limit blocks, avoiding damage to the magnets and coils due to the lack of protection points.

[0076] Additionally, a receiving groove is formed on the base 9 at the position corresponding to the limit 41 block. The roughness of the bottom of the receiving groove is lower than that of the plane of the base 9. The overall plane of the base 9 is the bonding and assembly surface of the OIS coil 8. Treating it with conventional roughness or even deliberately making it slightly rough, such as sandblasting or grinding, can effectively increase the contact area and adhesion between the coil adhesive and the base 9, and improve the firmness of the coil bonding. The bottom of the receiving groove is the only contact surface of the limit 41 block impact. Treating it with low roughness, such as polishing or fine grinding, aims to give this contact surface high flatness and high smoothness. When the limit 41 block has a hard impact with the bottom of the groove, the smooth contact surface can greatly reduce friction and stress concentration, avoiding impact chipping and debris caused by rough or burr-like contact surfaces. If debris enters the module, it can easily jam the OIS coil 8, the shared magnet 5, the three-dimensional spring 7, and other precision-fitted components, causing the focus / image stabilization function to jam or fail.

[0077] In this embodiment, the carrier 6 has an AF dispensing groove 61 for dispensing AF damping adhesive and a weight reduction hole 62.

[0078] Understandably, in order to prevent dust and other foreign objects from entering the lens, a housing 2 that snaps into the base 9 can be provided to shield the internal parts.

[0079] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Unless otherwise specified, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0080] The embodiments of the present invention have been described above with reference to the accompanying drawings. However, the present invention is not limited to the specific embodiments described above. The specific embodiments described above are merely illustrative and not restrictive. Those skilled in the art can make many other forms under the guidance of the present invention without departing from the spirit and scope of the claims. All of these forms are within the protection scope of the present invention.

Claims

1. A shock-resistant, image-stabilized lens, characterized in that: The device includes a lens assembly, a carrier for supporting the lens assembly, and a bracket for mounting the carrier; it also includes a drive mechanism, which includes an AF coil, an OIS coil, and a common magnet; the AF coil and the common magnet work together to drive the carrier to move relative to the bracket along the optical axis, thereby enabling the lens assembly to autofocus; the OIS coil and the common magnet work together to drive the bracket to move relative to the base along an XY plane perpendicular to the optical axis, thereby enabling the lens assembly to achieve image stabilization in the X and Y axes. It also includes a three-dimensional spring sheet and an AF spring sheet for realizing carrier AF reset; the three-dimensional spring sheet is used to assist carrier AF reset and realize support OIS reset; A limit block is provided on the side of the bracket facing the base. When the limit block abuts against the base, there is a gap between the OIS coil and the common magnet.

2. The shock-resistant and image-stabilized lens according to claim 1, characterized in that: The limiting blocks consist of four blocks, which are respectively located on the line connecting the midpoint of the bracket and its four corners.

3. The shock-resistant and image-stabilized lens according to claim 1, characterized in that: A receiving groove is provided on the base at a position corresponding to the position of the limiting block, and the roughness of the bottom of the receiving groove is lower than that of the base plane.

4. The shock-resistant and image-stabilized lens according to claim 1, characterized in that: The three-dimensional spring includes a spring body with an AF spring wire for assisting the carrier AF reset; it also includes an elastic baffle perpendicular to the spring body at the corner of the spring body, which acts on the side wall of the support to achieve OIS reset; the spring body, AF spring wire and elastic baffle are all integrally etched from the same base material.

5. The shock-resistant and image-stabilized lens according to claim 1, characterized in that: The AF spring includes a carrier connection part for connecting with a carrier and a bracket connection part for connecting with a support; an AF main spring wire for carrier AF reset is provided between the carrier connection part and the support connection part, and the AF main spring wire includes a functional section and a first avoidance section for avoiding the AF dispensing groove on the carrier.

6. The shock-resistant and image-stabilized lens according to claim 5, characterized in that: The functional segment includes a first functional segment and a second functional segment arranged in parallel. The first functional segment and the second functional segment are connected by an arc segment. The first functional segment is connected to the carrier connection part by a connecting segment. The second functional segment is connected to the first clearance segment at an acute angle, so that the AF dispensing groove on the carrier is located within the angle formed by the clearance segment and the second functional segment.

7. The shock-resistant and image-stabilized lens according to claim 6, characterized in that: A third functional section is provided between the first clearance section and the support connection; the third functional section is bent at an acute angle.

8. The shock-resistant and image-stabilized lens according to claim 1, characterized in that: The common magnet consists of four magnets, arranged in a rectangular pattern in pairs opposite each other along the X and Y axes of the support. The OIS coil consists of four sets of coils located on the base directly below the four common magnets. The AF coil is fixed to the carrier and located inside the four common magnets.

9. The shock-resistant and image-stabilized lens according to claim 8, characterized in that: The shared magnet is rectangular, and the OIS coil is hollow and waist-shaped; the magnetic force generated by the two long sides of the OIS of all the shared magnets respectively cooperates with the inner and outer magnetic poles of the magnet to form a resultant force in the same direction.

10. The shock-resistant image-stabilized lens according to claim 8, characterized in that: The four shared magnets all face inwards and share the same magnetic pole; the AF coil is a ring with four long sides, each of which is matched with one of the four magnets.

Images