Three-dimensional elastic sheet firmly connected with damping glue and anti-shake lens

Abstract

The invention discloses a three-dimensional elastic sheet firmly connected with damping glue and an anti-shake lens. The three-dimensional elastic sheet comprises an elastic sheet body, and the elastic sheet body is provided with an AF elastic wire used for assisting a carrier AF in resetting. The elastic separation blade is arranged at the corner part of the elastic sheet body and is perpendicular to the elastic sheet body; the elastic separation blade acts on the side wall of the bracket to realize OIS resetting; the elastic sheet body, the AF elastic wire and the elastic separation blade are integrally formed by etching the same base material; an X elastic baffle and a Y elastic baffle which extend in the X direction and the Y direction form a group; the X elastic separation blade and the Y elastic separation blade in the same group are connected through a dispensing sheet parallel to an XY plane; the dispensing sheet is used as a bearing surface of damping glue between the three-dimensional elastic sheet and the base; and a through dispensing hole is formed in the dispensing sheet. The three-dimensional elastic piece can be firmly connected with damping glue, and insufficient aftershock pressing caused by falling of the damping glue is avoided.

Description

Technical Field

[0001] This invention belongs to the field of optical lens technology, and particularly relates to a three-dimensional spring sheet and an image-stabilized lens that are firmly connected to damping adhesive. Background Technology

[0002] With the rapid development of electronic products towards thinner, lighter, and higher-performance designs, the balance between the camera's shooting accuracy, especially its autofocus (AF) and optical image stabilization (OIS) functions, and the module's size has become a key technical challenge in the industry.

[0003] In existing camera motors, the three-dimensional spring is the core component for realizing AF and OIS functions. It uses two sets of springs bent at 90 degrees to form the OIS functional area, and at least one set of suspension wires is set at the bottom of the springs to form the AF functional area. This structure enables the integrated application of AF and OIS functions.

[0004] However, the traditional three-dimensional spring structure results in a large overall size of the camera module, making it difficult to adapt to the assembly requirements of thin and light electronic products. On the other hand, simply reducing the size of the module will limit the installation space of the drive source components, making it impossible to provide sufficient driving force to support a large lens, which in turn affects the focusing sensitivity of the AF function and the image stabilization accuracy of the OIS function, thus failing to meet high shooting standards.

[0005] Chinese patent application CN114710002B discloses a three-dimensional spring composed of planar spring pieces. This three-dimensional spring is used in a voice coil motor to provide elastic support and limiting effects in several directions for the moving parts. It includes planar spring pieces A and B, which are independent structures that are in contact with each other and fixedly connected. The angle between the planes containing planar spring pieces A and B is not zero.

[0006] In the aforementioned prior art, after the three-dimensional spring is assembled into the voice coil motor, its contact surface with the damping adhesive is limited, and the damping adhesive has insufficient fixation stability, making it prone to falling off during the centrifugal cleaning process in the component assembly process; moreover, the vibration residual waves generated by the spring during displacement cannot be effectively absorbed, affecting the stability of the captured image. Summary of the Invention

[0007] The purpose of this invention is to provide a three-dimensional spring sheet and a stabilized lens that are firmly connected to the damping adhesive, thereby partially solving or alleviating the above-mentioned deficiencies in the prior art and ensuring a firm connection with the damping adhesive to avoid insufficient suppression of residual vibration caused by the detachment of the damping adhesive.

[0008] 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 a three-dimensional spring sheet and an image-stabilized lens that are firmly connected to damping adhesive, including a spring sheet body, wherein the spring sheet body is provided with an AF spring wire for assisting the carrier AF reset; and further including an elastic baffle disposed on the corner of the spring sheet body perpendicular to the spring sheet body, wherein the elastic baffle acts on the side wall of the bracket to achieve OIS reset. The elastic baffle is composed of X elastic baffles and Y elastic baffles extending along the X and Y directions, respectively; the X elastic baffles and Y elastic baffles in the same group are connected by adhesive dots parallel to the XY plane; the adhesive dots serve as the bearing surface for the damping adhesive between the three-dimensional elastic sheet and the base; the adhesive dots have through-holes.

[0009] Furthermore, the adhesive patch is a right-angled triangle, and the X-elastic baffle and Y-elastic baffle are respectively connected to the two right-angled sides of the adhesive patch.

[0010] Furthermore, the right-angled part of the adhesive sheet is provided with a defect for the damping adhesive to adhere to.

[0011] Furthermore, the adjacent sides of the X-elastic baffle and Y-elastic baffle in the same group are spaced apart.

[0012] Furthermore, the dispensing holes are four in a trapezoidal arrangement; and the base of the trapezoid formed by the dispensing holes is parallel to the base of the dispensing sheet.

[0013] Furthermore, the elastic baffle has weight-reducing holes, which serve as attachment points for the damping adhesive between the three-dimensional elastic sheet and the bracket.

[0014] The present invention also provides an image-stabilized lens, including 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 achieve 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 an AF spring for resetting the carrier AF and a three-dimensional spring as described above; the three-dimensional spring is used to assist in resetting the carrier AF and to reset the support OIS.

[0015] 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.

[0016] Furthermore, damping adhesive is provided between the bracket and the elastic baffle of the three-dimensional spring sheet.

[0017] Furthermore, the bracket has a dispensing groove for applying damping adhesive; the elastic baffle uses the weight-reducing holes thereon as attachment points for the damping adhesive.

[0018] 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.

[0019] Beneficial effects:

[0020] This invention integrates the AF reset spring wire and the OIS reset elastic baffle into the same spring body, eliminating the need for separate AF reset springs and OIS reset springs, significantly reducing the number of internal components and assembly complexity. At the same time, the spring, adhesive sheet, and elastic baffle are integrally molded, avoiding space waste caused by splicing multiple components, reducing the overall space occupied by the module, and perfectly adapting to the development trend of thinner and lighter electronic products and high-density assembly.

[0021] By constructing a three-dimensional damping adhesive fixing network through the dispensing holes and defective parts of the dispensing sheet, the connection between the damping adhesive and the spring sheet is upgraded from a single planar bonding to a composite structure of mechanical locking and chemical bonding. The effective contact area is increased, and the anti-detachment ability is improved compared with the traditional design, which can easily cope with complex working conditions such as centrifugal cleaning and temperature cycling.

[0022] The damping adhesive between the bracket and the elastic baffle serves as a backup damping structure. Under normal operating conditions, it assists the main damping adhesive in dispersing stress. In emergency situations, such as when the main damping adhesive falls off, ages, or has assembly deviations, it can be replaced immediately to maintain the basic connection stability and anti-shake performance of the module, avoid overall functional failure, improve the module's resistance to failure, and significantly reduce the after-sales repair rate of high-end electronic products. Attached Figure Description

[0023] 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.

[0024] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention.

[0025] Figure 2 This is a magnified view of the spot on the film.

[0026] Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention.

[0027] Figure 4 This is a schematic diagram of the OIS coil and the common magnet.

[0028] Figure 5 This is a schematic diagram of the AF coil and the common magnet.

[0029] Figure 6 A schematic diagram of the carrier and the shared magnet.

[0030] Figure 7 This is a schematic diagram of the damping adhesive between the 3D spring and the base.

[0031] Figure 8 This is a schematic diagram of the damping structure between the three-dimensional spring and the support.

[0032] Figure 9 This is a schematic diagram of the AF spring sheet in this invention.

[0033] Figure 10 This is a schematic diagram of the assembly of the AF spring sheet with the carrier and support in this invention.

[0034] Figure 11 This is an enlarged view of the AF spring clip clearance section in this invention.

[0035] 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), 13-Damping adhesive, 41-Adhesive groove, 71-Spring body, 72-Elastic baffle, 76-AF spring wire, 711-Adhesive sheet, 725-Weight reduction hole, 7111-Adhesive hole, 7112-Damaged part, 93-Adhesive groove, 31-Carrier connection part, 32-Bracket connection part, 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 adhesive groove, 62-Weight reduction hole. Detailed Implementation

[0036] 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.

[0037] 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.

[0038] 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.

[0039] 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.

[0040] In this document, "and / or" includes any and all combinations of one or more of the listed related items.

[0041] In this article, "multiple" means two or more, that is, it includes two, three, four, five, etc.

[0042] Example 1:

[0043] like Figure 1 As shown, this embodiment provides a three-dimensional spring sheet 7 that is firmly connected to the damping adhesive 13, including a spring sheet body 71, on which an AF spring wire 76 for assisting the carrier 6AF reset is provided; it also includes an elastic baffle 72 disposed on the corner of the spring sheet body 71 and perpendicular to the spring sheet body 71, the elastic baffle 72 acting on the side wall of the bracket 4 to achieve OIS reset.

[0044] The elastic baffle 72 is a group consisting of an X elastic baffle 72 and a Y elastic baffle 72 extending along the X and Y directions; the X elastic baffle 72 and the Y elastic baffle 72 in the same group are connected by a dispensing sheet 711 parallel to the XY plane; the dispensing sheet 711 serves as the bearing surface of the damping adhesive 13 between the three-dimensional elastic piece 7 and the base 9; the dispensing sheet 711 has a through dispensing hole.

[0045] The spring body 71 is the supporting structure of the entire three-dimensional spring 7, providing an installation reference for functional components such as AF spring wire 76 and elastic baffle 72, while coordinating the motion logic of each component to ensure the coordinated operation of AF function and OIS function and avoid motion interference.

[0046] The AF spring wire has a specific elastic coefficient. When the drive mechanism drives the carrier 6 to move along the optical axis to achieve focusing, the AF spring wire 76 will undergo elastic deformation with the displacement of the carrier 6. When focusing is completed or the drive signal disappears, the AF spring wire 76 will drive the carrier 6 back to the initial position through its own elastic restoring force, assisting in completing the AF reset (in the image-stabilized lens, there is also an AF spring 3 to achieve AF reset), ensuring the accuracy and consistency of each focus.

[0047] The elastic baffles 72 are set perpendicular to the spring body 71, and there are usually 4 groups, corresponding to the four corners of the spring body 71 respectively. Each group of elastic baffles 72 consists of an X elastic baffle 72 extending along the X direction (for Y direction reset) and a Y elastic baffle 72 extending along the Y direction (for X direction reset). The two are perpendicular to each other and together cover the two motion directions in the XY plane, that is, the horizontal image stabilization direction required by the OIS function.

[0048] The elastic stop 72 has good elastic recovery capability, and its free end abuts against the side wall of the bracket 4 of the lens assembly 1. When the drive mechanism drives the bracket 4 to move along the X-axis or Y-axis to counteract shake, the corresponding X elastic stop 72 or Y elastic stop 72 will be deformed by the pressure of the side wall of the bracket 4; when the shake disappears or the drive signal stops, the elastic recovery force of the elastic stop 72 will push the bracket 4 back to its initial position, realize OIS reset, and ensure the positional stability of the lens after the image stabilization movement.

[0049] The X-elastic baffle 72 and Y-elastic baffle 72 in the same group are kept at a certain distance on adjacent sides to avoid mutual interference during deformation, while ensuring the elastic recovery efficiency of each in the corresponding direction, thus ensuring the sensitivity and accuracy of OIS reset.

[0050] In this embodiment, the spring body 71, the AF elastic wire 76, and the elastic baffle 72, including the adhesive patch 711, are all integrally etched from the same base material. The adhesive patch 711 is arranged parallel to the XY plane and is used to connect the X elastic baffle 72 and Y elastic baffle 72 in the same group. It also serves as a reference surface for the elastic reset of the X elastic baffle 72 and Y elastic baffle 72. Its shape is preferably a right-angled triangle, with the two right-angled sides connected to the X elastic baffle 72 and Y elastic baffle 72 respectively, and the right angle corresponding to the corner position of the spring body 71.

[0051] The adhesive patch 711 serves as the dedicated bearing surface for the damping adhesive 13 between the 3D spring 7 and the base 9. It increases the contact area between the damping adhesive 13 and the spring, changing the traditional connection method where the damping adhesive 13 only has single-point or line contact, thus providing a stable adhesion foundation for the damping adhesive 13. The adhesive patch 711 has through-holes. When adhesive is applied to the damping adhesive 13 groove in the base 9, the damping adhesive 13 fills the through-holes and adheres to the upper and lower surfaces of the adhesive patch 711, forming a through-type fixing structure, rather than simple surface bonding. This design effectively resists the centrifugal force generated during the centrifugal cleaning process in module assembly, preventing the damping adhesive 13 from falling off and significantly improving the firmness of the connection between the damping adhesive 13 and the spring.

[0052] like Figure 2 As shown, in order to further improve the adhesion of the damping adhesive 13, a defect 7112 is provided at the right angle of the adhesive patch 711 in this embodiment for the damping adhesive 13 to adhere to.

[0053] The defect 7112 is located at the right-angle vertex of the adhesive patch 711 and is formed by partial cutting, recessing, or hollowing out. The defect 7112, through its recessed design, forms additional adhesive surfaces in the thickness direction and lateral direction of the adhesive patch 711, changing the damping adhesive 13 from planar adhesion to three-dimensional wrapping adhesion. The effective contact area is increased compared to the structure without the defect 7112, significantly enhancing the physical adsorption force between the damping adhesive 13 and the adhesive patch 711.

[0054] More specifically, in this embodiment, the dispensing holes are four in a trapezoidal arrangement; and the base of the trapezoid formed by the dispensing holes is parallel to the base of the dispensing sheet 711. The dispensing holes are preferably circular, and the hole walls are designed with smooth transitions to avoid stress concentration caused by sharp angles, while reducing obstruction to the filling process of the damping adhesive 13 and ensuring the integrity of the adhesive layer.

[0055] During use, the area near the bottom edge of the adhesive patch 711 experiences greater shear and peel forces from the damping adhesive 13. The trapezoidal arrangement of the dispensing holes allows the damping adhesive 13 to form more sufficient penetrating columns in areas of higher stress, achieving a precise match between stress and adhesive layer distribution, and avoiding delamination caused by localized stress concentration. The trapezoidal coverage area formed by the four holes perfectly matches the effective bearing area of ​​the adhesive patch 711, allowing the damping adhesive 13 to penetrate through the four holes and form evenly distributed adhesive layer nodes on the upper and lower surfaces of the adhesive patch 711. This multi-point locking of the damping adhesive 13 improves connection stability compared to a single hole or disordered arrangement.

[0056] After the four dispensing holes penetrate the dispensing sheet 711, the damping adhesive 13 cures to form four independent adhesive pillars arranged in a trapezoidal pattern. These four pillars are spatially staggered and, together with the adhesive layer on the surface of the dispensing sheet 711 and the three-dimensional adhesive structure within the defect 7112, constitute a composite fixing system. When the module undergoes centrifugal cleaning, OIS reset vibration, or insertion and extraction forces during assembly, the four trapezoidal adhesive pillars can disperse external forces from different directions, preventing the failure of a single pillar from causing overall loosening of the connection. In particular, they can effectively resist peeling forces along the bottom edge of the dispensing sheet 711, thus improving the anti-detachment capability of the damping adhesive 13 compared to rectangular or linear arrangements.

[0057] In addition, the elastic baffle 72 has a weight reduction hole 725, which serves as the attachment point for the damping adhesive 13 between the three-dimensional elastic piece 7 and the bracket 4.

[0058] The fundamental function of the weight reduction hole 725 is to optimize the mechanical properties of the elastic baffle 72 by rationally removing redundant material. The core function of the elastic baffle 72 is to push the support 4 to reset through elastic deformation, and its own weight directly affects the reset response efficiency. The weight reduction hole 725 can reduce the overall weight of the elastic baffle 72, significantly reducing the inertial resistance during the movement of the baffle, so that the baffle can deform quickly and reset accurately when squeezed or released by the support 4, thereby improving the efficiency of OIS function in capturing and canceling minor vibrations.

[0059] While achieving weight reduction, the weight-reducing hole 725 also serves as a dedicated attachment point for the damping adhesive 13 through structural optimization. After the damping adhesive 13 cures, the adhesive pillars within the hole form an embedded mechanical lock with the elastic baffle 72, similar to the fixing effect of a rivet. When the elastic baffle and the bracket 4 undergo relative displacement, the adhesive pillars can effectively resist shear forces in the X / Y directions and peeling forces in the Z direction, preventing the damping adhesive 13 from peeling off the baffle surface as a whole.

[0060] Example 2:

[0061] like Figure 3As shown, the present invention also provides an 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 driving 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.

[0062] 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.

[0063] 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.

[0064] 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.

[0065] Specifically, such as Figures 4-6As 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.

[0066] 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.

[0067] 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.

[0068] 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.

[0069] 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.

[0070] 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.

[0071] 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.

[0072] 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.

[0073] like Figure 7 , Figure 8 As shown, damping adhesive is provided between the bracket 4 and the elastic baffle 72 of the three-dimensional spring sheet 7. This serves as a backup damping structure, acting as a backup when the damping adhesive 13 structure between the base 9 and the three-dimensional spring sheet 7 fails, ensuring the damping effect meets design expectations. Additionally, the bracket 4 has a dispensing groove 41 for applying the damping adhesive; the elastic baffle 72 utilizes its weight-reducing holes 725 as attachment points for the damping adhesive. After the damping adhesive cures, the adhesive columns within the holes form an embedded mechanical lock with the elastic baffle 72.

[0074] like Figure 9 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.

[0075] 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.

[0076] 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.

[0077] 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.

[0078] 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.

[0079] 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.

[0080] like Figure 10 , Figure 11 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.

[0081] 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.

[0082] In this embodiment, the carrier 6 has a weight reduction hole 62 for weight reduction.

[0083] 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.

[0084] 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.

[0085] 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 three-dimensional spring sheet firmly connected to damping adhesive, characterized in that: The device includes a spring body with an AF spring wire for assisting 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. The elastic baffle is composed of X elastic baffles and Y elastic baffles extending along the X and Y directions, respectively; the X elastic baffles and Y elastic baffles in the same group are connected by adhesive dots parallel to the XY plane; the adhesive dots serve as the bearing surface for the damping adhesive between the three-dimensional elastic sheet and the base; the adhesive dots have through-holes.

2. The three-dimensional spring sheet firmly connected to damping adhesive according to claim 1, characterized in that: The adhesive patch is a right-angled triangle, and the X-elastic baffle and Y-elastic baffle are respectively connected to the two right-angled sides of the adhesive patch.

3. A three-dimensional spring sheet firmly connected to damping adhesive according to claim 2, characterized in that: The adhesive patch has a defect at the right angle for the damping adhesive to adhere to.

4. A three-dimensional spring sheet firmly connected to damping adhesive according to claim 2, characterized in that: The adjacent sides of the X-type and Y-type elastic baffles in the same group are spaced apart.

5. A three-dimensional spring sheet firmly connected to damping adhesive according to claim 2, characterized in that: The dispensing holes are four in a trapezoidal arrangement; and the base of the trapezoid formed by the dispensing holes is parallel to the base of the dispensing sheet.

6. A three-dimensional spring sheet firmly connected to damping adhesive according to claim 1, characterized in that: The elastic baffle has weight-reducing holes, which serve as attachment points for the damping adhesive between the three-dimensional elastic sheet and the bracket.

7. A lens with image stabilization, 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 an AF spring for resetting the carrier AF and a three-dimensional spring as described in any one of claims 1 to 6; the three-dimensional spring is used to assist in resetting the carrier AF and to reset the support OIS. 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.

8. The image-stabilized lens according to claim 7, characterized in that: Damping rubber is provided between the bracket and the elastic baffle of the three-dimensional spring sheet.

9. A lens with image stabilization according to claim 8, characterized in that: The bracket has a dispensing groove for applying damping adhesive; the elastic baffle uses the weight-reducing holes on it as attachment points for the damping adhesive.

10. A lens with image stabilization according to claim 7, 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.

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