Elastic wire mechanism and anti-shake lens
By using an integrated etched 3D spring sheet and a shared magnet drive mechanism, the problems of large space occupation and difficult assembly in the existing technology are solved, and the high-efficiency AF and OIS performance of the camera module is improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-10
- Publication Date
- 2026-04-10
AI Technical Summary
In the existing technology, the design of the three-dimensional spring sheet results in the spring sheet occupying too much space in the camera module, which limits the layout and performance improvement of the driving source components. In addition, the dispensing accuracy and stability during the assembly process are insufficient, which affects the AF function performance and module reliability.
The three-dimensional spring is integrally etched and formed by the spring body, AF spring wire and elastic baffle. The avoidance section of the AF main spring wire is designed to avoid the carrier glue groove. The AF and OIS functions are integrated by using a shared magnet drive mechanism, which reduces the number of magnets and assembly complexity.
It improves the accuracy and stability of AF and OIS performance, simplifies the assembly process, reduces the overall difficulty of the module, and enhances production efficiency and reliability.
Smart Images

Figure CN121841044A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application belongs to the technical field of optical lenses, and particularly relates to a silk spring mechanism and an anti-shake lens. BACKGROUND
[0002] In the camera module of consumer electronics products, the silk spring mechanism (including a three-dimensional spring and an AF spring) is a key component for realizing the AF (automatic focusing) and OIS (optical image stabilization) functions of the camera motor. In the prior art, the three-dimensional spring is built by two groups of springs in a 90-degree bent state to form an OIS function area, and at least one group of AF spring connection structures is arranged at the bottom of the spring, which forms an AF function area and cooperates with a separate AF spring to realize the optical image stabilization and automatic focusing functions of the camera motor, thereby meeting the basic shooting requirements.
[0003] The prior art patent application CN202422383446.9 discloses a three-dimensional spring and an optical image stabilization focusing motor, and the connection mode of the upper spring and the AF spring is not optimized, the space occupied by the spring is too high, the layout and performance improvement of the driving source components in the motor are limited, the driving force cannot be increased to realize the bearing of a large mass lens by a small volume module, the AF glue dispensing groove on the carrier is crossed by the spring structure, and the precision and stability of the glue dispensing during assembly are insufficient due to the targeted avoidance design, which not only affects the performance of the AF function, but also reduces the overall reliability of the camera module. The assembly process of the existing structure is relatively complicated, and the production efficiency of the camera module is also restricted. SUMMARY
[0004] The present application aims to provide a silk spring mechanism and an anti-shake lens, which partially solves or alleviates the above-mentioned deficiencies in the prior art, and can avoid affecting the glue dispensing operation during assembly.
[0005] In order to solve the above-mentioned technical problems, the present application specifically adopts the following technical solutions: The first aspect of the present application is to provide a silk spring mechanism, which comprises a three-dimensional spring and an AF spring. The three-dimensional spring comprises a spring body, and the spring body is provided with an AF spring for assisting the AF reset of the carrier. The three-dimensional spring further comprises an elastic stopper arranged on the corner of the spring body and perpendicular to the spring body, and the elastic stopper acts on the side wall of the bracket to realize the OIS reset. The spring body, the AF spring and the elastic stopper are integrally etched and formed from the same base material. The AF shell includes a carrier connecting part for connecting with the carrier and a support connecting part for connecting with the support; an AF main elastic element for AF reset of the carrier is arranged between the carrier connecting part and the support connecting part, and the AF main elastic element includes a functional segment and a first avoiding segment for avoiding the AF point glue groove on the carrier.
[0006] Further, the functional segment includes a first functional segment and a second functional segment arranged in parallel, and the first functional segment and the second functional segment are connected by an arc segment; the first functional segment is connected with the carrier connecting part by a connecting segment; and the second functional segment is connected with the first avoiding segment at an acute angle, so that the AF point glue groove on the carrier is located in the included angle formed by the avoiding segment and the second functional segment.
[0007] Further, a third functional segment is arranged between the first avoiding segment and the support connecting part.
[0008] Further, the third functional segment is bent at an acute angle.
[0009] Further, the carrier connecting part is annular, and a pin hole is formed in the carrier connecting part for riveting with the carrier.
[0010] Further, the support connecting part is rectangularly arranged in four parts, and a pin hole for connecting with the support is formed in the support connecting part.
[0011] The application also provides an anti-shake lens, which includes a lens assembly, a carrier for carrying the lens assembly, and a support for mounting the carrier; further includes a driving mechanism, the driving mechanism includes 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 cooperate to drive the support to move along the XY plane perpendicular to the optical axis relative to the base to drive the lens assembly to realize anti-shake in the X-axis and Y-axis directions. Further, the application also provides an elastic element mechanism for realizing AF reset of the carrier and OIS reset of the support.
[0012] Further, the carrier is provided with an AF point glue groove for setting AF damping glue.
[0013] Further, the carrier is provided with a weight-reducing hole.
[0014] Further, the common magnet is four, and two of the four are arranged in a rectangular shape in the X-axis direction and the Y-axis direction of the support; the OIS coil is four groups arranged on the base below the four common magnets; and the AF coil is fixed on the carrier inside the four common magnets.
[0015] Beneficial effects:
[0016] The stereoscopic spring piece is integrally etched and formed from the same material as the spring piece body, AF spring wire and elastic baffle, without splicing link, has high structural strength, unified mechanical properties, and integrates the carrier AF auxiliary reset and support OIS core reset functions; in combination with the AF core reset function of the AF spring piece, the AF reset system and the OIS reset system are formed, the double reset functions do not interfere with each other, the carrier AF displacement and support OIS reset are more accurate and stable, and the focusing and anti-shake performance of the anti-shake lens is greatly improved.
[0017] The AF main spring wire is designed with a first avoidance section structure, which is specifically avoided for the carrier AF dispensing groove, and the avoidance structure is placed in the included angle through the acute angle connection, so that no dead angle space is avoided. The structure interference between the spring wire and the dispensing groove is avoided, and the convenience of dispensing operation is ensured. BRIEF DESCRIPTION OF DRAWINGS
[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or prior art description. In all the drawings, similar elements or parts are generally identified by similar reference signs. In the drawings, each element or part is not necessarily drawn according to the actual proportion. Obviously, the drawings described below are some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.
[0019] Figure 1 The structure of the AF spring piece in the present application is shown in the figure.
[0020] Figure 2 The structure of the stereoscopic spring piece in the present application is shown in the figure.
[0021] Figure 3 The assembly of the AF spring piece, the carrier and the support in the present application is shown in the figure.
[0022] Figure 4 The enlarged view of the avoidance section of the AF spring piece in the present application is shown in the figure.
[0023] Figure 5 The structure of the second embodiment of the present application is shown in the figure.
[0024] Figure 6 The schematic view of the OIS coil and the common magnet is shown in the figure.
[0025] Figure 7 The schematic view of the AF coil and the common magnet is shown in the figure.
[0026] Figure 8 The schematic view of the carrier and the common magnet is shown in the figure.
[0027] Summary of the identification of reference signs: 1-lens assembly, 2-housing, 3-AF spring, 4-bracket, 5-common magnet, 6-carrier, 7-stereo spring, 8-OIS coil, 9-base, 10-AF coil (actually the mounting frame of the AF coil in the figure), 31-carrier connecting part, 32-bracket connecting part, 33-first function section, 34-second function section, 35-arc section, 36-connecting section, 37-first avoiding section, 38-third function section, 61-AF dispensing groove, 62-weight reduction hole, 71-spring body, 72-elastic stopper, 76-AF spring wire. DETAILED DESCRIPTION
[0028] In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are some but not all of the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by a person of ordinary skill in the art without creative work fall within the protection scope of the present application.
[0029] In this document, the suffixes such as "module", "part" or "unit" used for an element are merely intended for facilitating description of the present application, and are by no means specific. Therefore, "module", "part" or "unit" can be mixedly used.
[0030] In this document, the terms "upper", "lower", "inner", "outer", "front", "back", "one end", "the other end" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are merely for the convenience of describing the present application and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation on the present application. In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.
[0031] In this document, unless otherwise explicitly specified and limited, the terms "mounting", "provided with", "connection" and the like should be understood broadly, for example, "connection" can be fixed connection, can also be detachable connection, or integrally connected; can be mechanical connection, can be direct connection, can also be indirect connection through an intermediate medium, can be the communication inside two elements. For a person of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0032] In this document, "and / or" includes any and all combinations of one or more of the listed related items.
[0033] In this document, "multiple" means two or more, that is, it includes two, three, four, five, etc.
[0034] Embodiment one:
[0035] As shown in Figure 1 , Figure 2 , the embodiment provides a spring mechanism, which comprises a three-dimensional spring 7 and an AF spring 3.
[0036] The three-dimensional spring 7 comprises a spring body 71, wherein an AF spring 76 for assisting the reset of the carrier 6 AF is arranged on the spring body 71; and a flexible stopper 72 arranged on the corner of the spring body 71 and perpendicular to the spring body 71 is arranged, wherein the flexible stopper 72 acts on the side wall of the support 4 to realize OIS reset; the spring body 71, the AF spring 76 and the flexible stopper 72 are integrally etched and formed by the same parent material.
[0037] The three-dimensional spring 7 is a key component of the spring mechanism which has AF auxiliary reset and OIS core reset, and is an integrated three-dimensional structure, which is composed of the spring body 71, the AF spring and the flexible stopper 72, and the three are integrally etched and formed by the same parent material without assembly and splicing links.
[0038] The spring body 71 is the basic bearing structure of the three-dimensional spring 7, which provides support for the installation of the entire three-dimensional spring 7 and the layout of other functional components, and is an integrated forming carrier 6 of the AF spring 76 and the flexible stopper 72, and its structure form is adapted to the internal space layout of the camera module, and forms precise position cooperation with the support 4, the carrier 6 and the base 9 of the anti-shake lens, so as to ensure the stable installation of the three-dimensional spring 7 in the module.
[0039] The AF spring 76 is arranged on the spring body 71, and its function is to assist the carrier 6 to realize AF reset, which belongs to the auxiliary structure of AF reset, and forms an AF reset cooperation system with the AF main spring of the AF spring 3. In the AF working process of the anti-shake lens, the carrier 6 reciprocates along the optical axis direction to realize automatic focusing, and the AF spring 76 provides auxiliary elastic reset force through its elastic deformation, so as to cooperate with the AF main spring to make the AF reset of the carrier 6 more accurate and stable, avoid the problems of reset deviation and jamming of the carrier 6, and improve the accuracy and stability of AF focusing.
[0040] The elastic stopper 72 is a functional component of the three-dimensional spring 7 for realizing OIS core reset, is arranged at the corner of the spring body 71, and is in a vertical structure with the spring body 71. The three-dimensional structure breaks through the space limitation of the planar spring, so that the elastic stopper 72 can directly act on the side wall of the holder 4. In the OIS working process of the anti-shake lens, the holder 4 is displaced along the XY plane perpendicular to the optical axis to realize optical anti-shake. The elastic stopper 72 provides elastic reset force by contacting and abutting against the side wall of the holder 4 through elastic deformation, drives the holder 4 after displacement to reset accurately, realizes OIS reset in the X-axis and Y-axis directions, and is the power source for OIS reset of the holder 4.
[0041] The spring body 71, the AF spring 76 and the elastic stopper 72 are integrally etched and formed by using the same base material, without splicing gaps and connection nodes. The components form an integrated structure, can withstand repeated elastic deformation in the working process of the camera module, are not prone to problems such as fracture and falling, and improve the service life and reliability of the spring mechanism. The integrated forming makes the mechanical properties of the components highly unified, the auxiliary reset of the AF spring 76 and the OIS reset of the elastic stopper 72 can form accurate mechanical cooperation with the supporting effect of the spring body 71, and reset deviation caused by splicing errors is avoided. The integrated etching and forming can complete the processing of all components at one time, without subsequent splicing and assembly, which improves production efficiency, reduces assembly errors, meets the needs of large-scale production of the camera module, and also reduces the overall assembly difficulty of the module.
[0042] The AF spring 3 includes a carrier connecting portion 31 for connecting with the carrier 6 and a holder connecting portion 32 for connecting with the holder 4; the carrier connecting portion 31 and the holder connecting portion 32 are provided with an AF main spring for AF reset of the carrier 6, and the AF main spring includes a functional section and a first avoiding section 37 for avoiding the AF glue groove 61 on the carrier 6.
[0043] The AF spring 3 is a dedicated component for AF reset in the spring mechanism, bears the main elastic power output of the carrier 6 along the AF reset direction of the optical axis, is a planar elastic structure as a whole, is composed of the carrier connecting portion 31, the holder connecting portion 32 and the AF main spring, realizes AF reset of the carrier 6 through the structure form of outside fixation and middle elastic deformation, and is designed to accurately avoid the carrier 6 structure, solving the problem of structural interference in module assembly.
[0044] Carrier connecting part 31 Carrier connecting part 31 is the fixed connection interface of AF shell 3 and anti-shake lens carrier 6, which is adapted to the connection position design of carrier 6, can realize accurate and stable connection with carrier 6, and makes AF shell 3 and carrier 6 form a whole synchronous movement. In the AF working process, the displacement of carrier 6 along the optical axis direction will directly drive the synchronous movement of carrier connecting part 31, and then be transmitted to the intermediate AF main spring, providing a power basis for the elastic deformation of the AF main spring, which is the first node of AF return force transmission.
[0045] Support connecting part 32 is the fixed connection interface of AF shell 3 and lens assembly 1 support 4. The stable connection of support connecting part 32 and support 4 forms a fixed support on the outer side of AF shell 3, providing a reaction force basis for the elastic deformation of AF main spring. In the whole AF working process, support connecting part 32 always keeps relative static with support 4, and forms displacement difference with moving carrier connecting part 31, so that the intermediate AF main spring produces elastic deformation, and then releases elastic return force to drive carrier 6 to reset.
[0046] AF main spring AF main spring is an elastic functional component connecting carrier connecting part 31 and support connecting part 32, which bears the main elastic power output of carrier 6 AF reset, and is divided into functional segment and first avoiding segment 37. The functional segment is the core area of AF main spring to realize AF reset, which stores and releases elastic potential energy through its own elastic deformation, and provides direct elastic power for the displacement and reset of carrier 6 along the optical axis direction. When carrier 6 moves along the optical axis direction with AF driving mechanism, the functional segment deforms elastically with the movement of carrier connecting part 31; when the driving force of AF driving mechanism disappears, the functional segment drives carrier connecting part 31 to reset synchronously through its own elastic restoring force, and then drives carrier 6 to accurately return to the initial position, realizing the reset after AF automatic focusing, which is the core power source of AF reset.
[0047] The first avoiding segment 37 is a precise avoiding design area of AF main spring for carrier 6 structure, which is used to precisely avoid AF point glue groove 61 on carrier 6, and is an important design to adapt module assembly and improve module reliability of the spring mechanism. In the assembly process of anti-shake lens, AF damping glue will be coated in AF point glue groove 61 of carrier 6 to improve the smoothness and stability of AF movement. If there is no avoiding design of AF main spring, its structure will interfere with AF point glue groove 61 of carrier 6 and the damping glue in the groove, resulting in inaccurate point glue operation, which improves the assembly reliability and AF working performance of anti-shake lens module.
[0048] As Figure 3 , Figure 4As shown, more specifically, the functional section includes a first functional section 33 and a second functional section 34 arranged in parallel, and the first functional section 33 and the second functional section 34 are connected by an arc-shaped section 35; the first functional section 33 is connected with the carrier connecting part 31 by a connecting section 36; and the second functional section 34 is connected with the first avoiding section 37 at an acute angle, so that the AF dispensing groove 61 on the carrier 6 is located within the included angle formed by the avoiding section and the second functional section 34.
[0049] In the module assembly process, the AF dispensing groove 61 needs to be coated with AF damping glue to improve the smoothness of the AF movement of the carrier 6. The dispensing groove is located within the acute included angle formed by the elastic wire structure, and the elastic wire structure does not block or cover the dispensing groove. The dispensing equipment can accurately dispense into the groove without obstruction, ensuring the accuracy of the position and amount of damping glue coating and improving the convenience and accuracy of assembly.
[0050] In addition, in the embodiment, the third functional section 38 is arranged between the first avoiding section 37 and the support connecting part 32. The third functional section 38 is bent at an acute angle. The third functional section 38 is located in the transition region of the AF main elastic wire from the front end elastic deformation first functional section 33 and the second functional section 34 to the rear end rigid fixed end, and is an important part of the complete elastic functional system of the AF main elastic wire. The idle transition section is converted into an elastic reset functional area, and the elastic functional section of the AF main elastic wire extends from the carrier connecting part side to the near support connecting part side, realizing efficient use of the elastic deformation area to the AF main elastic wire, and avoiding functional redundancy of the structure section.
[0051] The acute angle bending structure can effectively increase the effective elastic deformation length of the third functional section 38 without increasing the overall space occupied by the elastic wire. When the carrier drives the AF main elastic wire to deform, the bent structure allows the third functional section 38 to deform more fully, store more elastic potential energy, release stronger elastic reset force, further improve the cooperative reset effect with the first functional section 33 and the second functional section 34, and adapt to the AF displacement requirements of the carrier in a larger range, providing structural support for high-precision shooting.
[0052] In the embodiment, the carrier connecting part 31 is annular, and a pin hole is formed therein for riveting with the carrier 6. The support connecting part 32 is rectangularly arranged in four parts, and a pin hole is formed in the support connecting part 32 for connecting with the support 4.
[0053] Embodiment two:
[0054] As Figure 5As shown, the application also provides an anti-shake lens, which comprises a lens assembly 1, a carrier 6 for carrying the lens assembly 1, and a support 4 for mounting the carrier 6; further comprising a driving mechanism, the driving mechanism comprising 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 support 4 along the optical axis direction to drive the lens assembly 1 to realize automatic focusing; the OIS coil 8 and the common magnet 5 cooperate to drive the support 4 to move relative to the base 9 along the XY plane perpendicular to the optical axis to drive the lens assembly 1 to realize anti-shake in the X-axis and Y-axis directions.
[0055] In the application, the base 9 provides a fixed reference for the entire lens; the support 4 serves as an intermediate layer, carries the carrier 6 and realizes XY plane movement of itself relative to the base 9 to realize anti-shake; the carrier 6 serves as the innermost layer, directly carries the lens assembly 1 and realizes optical axis direction (Z-axis) movement relative to the support 4 to realize focusing. Through the hierarchical structure, the motion decoupling of Z-axis focusing and XY-axis anti-shake is realized through physical isolation, avoiding mutual interference of the two motions.
[0056] In the application, the driving mechanism adopts the AF coil 10 and the OIS coil 8 sharing the same magnet, which breaks through the design of independent configuration of magnets for AF and OIS systems in traditional anti-shake lenses, avoiding the problem of large space occupation caused by one set of magnets for AF and OIS in the traditional scheme. In the application, the common magnet 5 can provide a magnetic field source for AF and OIS, which simplifies the structure, reduces the number of magnets and reduces the assembly complexity, and enhances the magnetic field strength through centralized magnetic circuit. Under the same volume, the common magnet 5 can be designed to have a larger volume or higher magnetic energy product, improving the magnetic field density.
[0057] The AF coil 10 is fixed to the carrier 6, and after being electrified, it is subjected to the Lorentz force along the optical axis direction, pushing the carrier 6 to move along the Z-axis relative to the support 4 to realize focusing. The OIS coil 8 is fixed to the base 9, and by controlling the current direction and size of the X-axis and Y-axis coils, the Lorentz force along the X-axis or Y-axis can be generated to drive the support 4 to move relative to the base 9 in the XY plane to compensate for the shooting shake.
[0058] Specifically, as Figure 6~Figure 8As shown, the common magnets 5 in this embodiment are four, and are arranged in a rectangular shape on the X-axis and Y-axis directions of the support 4. The OIS coils 8 are four groups arranged on the bottom base 9 below the four common magnets 5. The AF coils 10 are fixed on the carrier 6 inside the four common magnets 5. More specifically, the common magnets 5 are rectangular, and the OIS coils 8 are hollow waist-shaped. The magnetic forces generated by the two long sides of all the common magnets 5 form the same force in the same direction by cooperating with the inner and outer magnetic poles of the magnets. In addition, the inner sides of the four common magnets 5 are the same magnetic pole. The AF coils 10 are ring-shaped with four long sides, and the four long sides cooperate with the four magnets respectively.
[0059] In this embodiment, the support 4 is rectangular. Four magnets are fixed at the midpoint positions of the four edges of the support 4, and the two magnets on the X-axis direction and the two magnets on the Y-axis direction are opposite to each other, so that the magnetic field forms a cross-shaped symmetric distribution in the XY plane. Compared with the traditional anti-shake lens in which the magnets are arranged on the diagonal lines of the four corners, the rectangularly arranged magnets can generate linear magnetic fields along the X-axis and Y-axis directions, rather than inclined magnetic fields in the diagonal direction, avoiding the force decomposition loss caused by the mismatch between the magnetic field direction and the driving demand direction in the traditional design.
[0060] The four magnets are opposite to each other, and the magnetic field directions of the two magnets on the X-axis direction are opposite, and the same is true for the Y-axis direction. When the OIS coils 8 are energized, the two opposite groups of coils can generate driving forces of equal size and opposite direction, making the translation of the support 4 in the XY plane more stable, avoiding the inclination or rotation of the support 4 caused by excessive force on one side, and ensuring the accuracy of anti-shake compensation.
[0061] The rectangular arrangement makes the magnets distributed along the edges of the support 4, maximizing the use of the outer space of the support 4, and allowing the magnets to be designed as larger rectangular structures (the length is adapted to the edge of the support 4). Compared with the small volume magnets on the four corners, the magnetic flux is higher, providing a magnetic field basis for driving force enhancement.
[0062] The four groups of OIS coils 8 are located directly below the four magnets. The OIS coils 8 are designed as hollow waist-shaped structures, i.e. two ends are semicircular and the middle is parallel to the long side. The two long sides of the waist-shaped coil correspond to the two long sides of the rectangular magnet in parallel. Figure 2 As shown in the middle, taking the X-axis + direction as an example, the inner side of the magnet on the X-axis is N pole and the outer side is S pole, and the corresponding OIS coil 8 is located on the long side of the inner side and the long side of the outer side. The current directions of the two long sides of the OIS coil 8 are opposite, so that the two long sides of the OIS coil 8 generate X+ direction thrust with the two poles of the common magnet 5 respectively, thereby making the support 4 move in the X+ direction.
[0063] The AF coil 10 is fixed on the carrier 6 and located inside the four common magnets 5. The inside of the four common magnets 5 forms a radial magnetic field, for example, the inside of the magnet is N-pole and the outside is S-pole, and the magnetic field direction points from the inside to the outside. The AF coil 10 is arranged around the carrier 6 inside the magnet, and the current direction is designed to be perpendicular to the radial magnetic field, according to the left-hand rule, which can generate a Lorentz force along the optical axis direction. Since the coil is located in the strong magnetic field area inside the magnet, and the circumference of the coil can be adapted to the inner contour of the four magnets, the length of the magnetic induction line is maximized, which directly improves the driving force of AF focusing.
[0064] In addition, the AF coil 10 is located inside the common magnet 5, and the OIS coil 8 is located in the common magnet 5, which are distributed in layers in space, avoiding electromagnetic interference between the coils, and ensuring independent control of AF focusing and OIS anti-shake. The bracket 4 carries the common magnet 5, the carrier 6 carries the AF coil 10, and the base 9 carries the OIS coil 8. The three-layer structure is closely nested without redundant space, which can meet the stringent requirements of consumer electronic devices such as smartphones for lens module miniaturization.
[0065] In this embodiment, the carrier 6 is provided with an AF dispensing groove 61 for dispensing AF damping glue and a weight-reducing hole 62.
[0066] It also includes a spring wire mechanism as described in Embodiment One for implementing carrier 6 AF reset and bracket 4 OIS reset. Specifically, the spring wire mechanism further includes a three-dimensional spring piece 7 and an AF spring 3 for implementing carrier 6 reset. The three-dimensional spring piece 7 is used to assist the carrier 6 AF reset and implement the bracket 4 OIS reset. After the driving current disappears, the elastic restoring force of the elastic deformation makes the moving part (carrier 6 / bracket 4) return to the initial position, ensuring that the lens maintains the reference attitude in the non-working state or after driving is completed, providing a stable starting point for the next focusing / anti-shake.
[0067] It can be understood that, in order to avoid dust and other foreign matter from entering the lens, a shell 2 can also be provided to cover the internal parts.
[0068] It should be noted that in this document, the terms "comprising", "including", or any other variant thereof are intended to cover non-exclusive inclusions, so that processes, methods, articles or devices including a series of elements not only include those elements, but also include other elements not explicitly listed, or inherent to such processes, methods, articles or devices. Without more limitations, the element defined by the statement "including a…" does not exclude the presence of other identical elements in the process, method, article or device including the element.
[0069] The embodiments of the present application are described above with reference to the accompanying drawings, but the present application is not limited to the above-described specific embodiments, and the above-described specific embodiments are merely illustrative, but not restrictive, and a person of ordinary skill in the art can make many forms under the inspiration of the present application without departing from the purpose of the present application and the scope protected by the claims, and these all belong to the protection of the present application.
Claims
1. A spring wire mechanism, characterized in that: Including 3D spring clips and AF spring clips; 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. 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.
2. The elastic wire mechanism according to claim 1, 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.
3. The elastic wire mechanism according to claim 2, characterized in that: A third functional section is provided between the first clearance section and the support connection part.
4. The elastic wire mechanism according to claim 3, characterized in that: The third functional segment is bent at an acute angle.
5. The elastic wire mechanism according to claim 1, characterized in that: The carrier connecting part is annular and has pin holes for riveting with the carrier.
6. The elastic wire mechanism according to claim 1, characterized in that: The bracket connecting parts consist of four rectangularly arranged parts, each with pin holes for connecting to 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 the spring wire mechanism as described in any one of claims 1 to 6 for realizing carrier AF reset and support OIS reset.
8. A camera lens according to claim 7, characterized in that: The carrier has an AF dispensing groove for applying AF damping adhesive.
9. A camera lens according to claim 7, characterized in that: The carrier has weight-reduction holes.
10. A camera lens 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.
Citation Information
Patent Citations
Three-dimensional elastic sheet and optical anti-vibration focusing motor
CN223309741U