Camera module and driving assembly thereof

Abstract

The application provides a camera module and a driving assembly thereof. The camera module comprises a driving frame, a base, at least one driving mechanism and a driving circuit board. The driving frame comprises a first driving frame, a second driving frame and a third driving frame. The driving mechanism comprises a first driving mechanism, a second driving mechanism and a third driving mechanism. The first driving mechanism is drivingly connected with the first driving frame and the second driving frame. The second driving mechanism is drivingly connected with the second driving frame and the third driving frame. The third driving mechanism is drivingly connected with the third driving frame and the base. The circuit board is arranged in the third driving frame. The second driving frame and the third driving frame are electrically connected with the driving circuit board through the third driving frame.

Description

Technical Field

[0001] This invention relates to the field of optical imaging technology, and more particularly to a camera module and its driving components. Background Technology

[0002] With the widespread adoption of mobile electronic devices, the technology related to camera modules (used to acquire images, such as video or photos) used in these devices has developed rapidly. In recent years, camera modules have been widely used in numerous fields, including medical, security, and industrial production. Recently, the development of mobile communication technology has led to the proliferation of portable terminals such as smartphones, resulting in miniaturized and lightweight camera modules. Therefore, portable terminals typically include at least one camera module. To meet increasingly diverse market demands, high pixel counts and high frame rates are irreversible development trends for existing camera modules.

[0003] Traditionally, lens driving devices used in mobile phone cameras typically employ a coil-magnet mechanism. This mechanism moves the lens unit along the optical axis using the coil and magnet, thus achieving zoom (autofocus). Simultaneously, it moves the lens unit in two directions orthogonal to the optical axis, thereby achieving image stabilization.

[0004] In existing technologies, the movement of optical lenses is typically achieved using a combination of coils and magnets. Electromagnetic force is an indirect force, requiring no direct contact. However, the structure of coils and magnets combined with springs inevitably produces oscillations, leading to errors. Furthermore, driving lenses with electromagnetic force results in relatively low driving force and short stroke, placing stringent requirements on lens quality. Summary of the Invention

[0005] A key advantage of this invention is that it provides a camera module and its driving assembly, wherein the driving assembly uses stacked piezoelectric elements to drive a lens, thereby enabling the camera module to perform zoom or autofocus functions.

[0006] Another advantage of the present invention is that it provides a camera module and its driving assembly, wherein the driving assembly uses stacked piezoelectric elements to drive the lens, thereby realizing the image stabilization function of the camera module.

[0007] Another advantage of the present invention is that it provides a camera module and its driving assembly, wherein the driving assembly includes multiple frames and multiple piezoelectric elements disposed on the frames, and drives the movement of the lens through multiple layers of piezoelectric elements, thereby realizing zoom and image stabilization of the camera module.

[0008] Another advantage of the present invention is that it provides a camera module and its driving assembly, wherein the driving assembly further includes a clamping member, wherein the clamping member is an integral structural element, and the lens is driven to move by the clamping member in conjunction with the stacked piezoelectric elements, thereby realizing the movement of the lens.

[0009] Another advantage of the present invention is that it provides a camera module and its driving assembly, wherein the driving assembly includes a housing, wherein the housing is disposed on the multi-layer frame, and the housing moves synchronously with the multi-layer frame to prevent the driving component from bending, keep the driving component stable, prevent tilting, and also prevent dust contamination.

[0010] Another advantage of the present invention is that it provides a camera module and its driving component, wherein the driving component further includes a driving circuit board, wherein the driving circuit board is L-shaped and has a double-layer structure, and the stacked piezoelectric elements are electrically connected through the driving circuit board, which helps to simplify the overall structure.

[0011] Another advantage of the present invention is that it provides a camera module and its driving component, wherein the driving component includes a frame and a driving component for driving the frame to move, wherein the frame further includes a first frame, a second frame and a third frame, and the driving component further includes a first driving component, a second driving component and a third driving component, wherein the third driving component and the second driving component are fixed to the third frame, which is beneficial for concentrating the circuit and simplifying the conduction method.

[0012] Another advantage of the present invention is that it provides a camera module and its driving assembly, wherein the driving assembly includes a frame and a driving component for driving the frame to move, wherein the frame further includes a first frame, a second frame and a third frame, and the driving assembly further includes a first driving component, a second driving component and a third driving component, wherein the conductive element of the third driving component extends upward and is electrically connected to the FPC on the surface of the third frame, and the conductive element of the second driving component extends downward and is electrically connected to the FPC on the surface of the third frame, which helps to simplify the conduction method.

[0013] Another advantage of the present invention is that it provides a camera module and its driving component, wherein the driving component further includes a clamping member, wherein the clamping member is an integral structure, which simplifies installation and debugging and improves product yield.

[0014] Another advantage of the present invention is that it provides a camera module and its driving assembly, wherein the clamping member clamps the first frame on one side along the height direction and clamps the first driving rod on the other side along the horizontal direction, which helps to improve the stability of the product.

[0015] Another advantage of the present invention is that it provides a camera module and its driving assembly, wherein the driving assembly further includes a housing, wherein the housing and the second frame form a receiving cavity for the AF portion, within the receiving cavity a first driving component drives the first frame to move along the optical axis direction, the second frame forms a carrier for the OIS portion, and the second driving component drives the second frame to move along a plane perpendicular to the optical axis direction.

[0016] According to one aspect of the present invention, a driving component is provided, comprising:

[0017] A driving frame, wherein the driving frame includes a first driving frame, a second driving frame and a third driving frame, and the second driving frame is located between the first driving frame and the third driving frame.

[0018] A base, wherein the base is located below the third drive frame;

[0019] At least one drive mechanism, wherein the drive mechanism includes a first drive mechanism, a second drive mechanism, and a third drive mechanism, the first drive mechanism being tractably connected to the first drive frame and the second drive frame, the second drive mechanism being tractably connected to the second drive frame and the third drive frame, and the third drive mechanism being tractably connected to the third drive frame and the base; and

[0020] A drive circuit board, wherein the circuit board is disposed on the third drive frame and the third drive frame has embedded metal conductors, the second drive mechanism is located on the upper end face of the third drive frame, the third drive mechanism is located on the lower end face of the third drive frame, and the second drive frame and the third drive frame are electrically connected to the book search drive circuit board through the embedded metal conductors of the third drive frame.

[0021] According to one embodiment of the present invention, the second driving mechanism includes a second piezoelectric element, a second transmission rod, and a second clamping member. The second clamping member is fixed to the second driving frame, and the second transmission rod is tractably disposed on the second piezoelectric element and the second clamping member. The third driving mechanism includes a third piezoelectric element, a third transmission rod, and a third clamping member. The third clamping member is fixed to the base, and the third transmission rod is tractably disposed on the third piezoelectric element and the third clamping member. The second piezoelectric element is disposed on the upper end face of the third driving frame, and the third piezoelectric element is disposed on the lower end face of the third driving frame.

[0022] According to an embodiment of the present invention, the first driving mechanism includes a first piezoelectric element, a first transmission rod, and a first clamping member, wherein the first piezoelectric element is disposed on the second driving frame, the first clamping member is fixed to the first driving frame, the first driving rod is tractably disposed on the first piezoelectric element and the first clamping member, and the first piezoelectric element, the first transmission rod, and the first clamping member are disposed along the Z-axis direction.

[0023] According to one embodiment of the present invention, a driving circuit board is further included, wherein the driving circuit board is disposed on the third driving frame and electrically connected to the second piezoelectric element and the third piezoelectric element through the third driving frame.

[0024] According to an embodiment of the present invention, the drive circuit board includes a first circuit board unit, a second circuit board unit, and a third circuit board unit, wherein the first circuit board unit, the second circuit board unit, and the third circuit board unit are connected in sequence. The first circuit board unit is located on one side of the upper end face of the second drive frame, the second circuit board unit is disposed on the third drive frame, and the second circuit board unit is located below the first circuit board unit. The third circuit board unit is disposed on the base, and the third circuit board unit is located on the other side adjacent to the second circuit board unit.

[0025] According to one embodiment of the present invention, the plurality of electronic components are disposed on the drive frame, the first circuit board unit is disposed on the upper surface of the second drive frame, the second circuit board unit is disposed on the upper surface of the third drive frame, and the second circuit board unit is fixed to the third drive frame.

[0026] According to an embodiment of the present invention, the driving circuit board further includes a first circuit connection portion and a second circuit connection portion, wherein the first circuit connection portion is located between the first circuit board unit and the second circuit board unit, the second circuit board connection portion is located between the second circuit board unit and the third circuit board unit, and the first circuit connection portion and the second circuit connection portion are bow-shaped or C-shaped structures protruding from the inside to the outside.

[0027] According to one embodiment of the present invention, it further includes at least one guiding mechanism, wherein the at least one guiding mechanism is disposed on the drive frame, wherein the guiding mechanism includes a first guiding mechanism, the first guiding mechanism is disposed on the first drive frame and the second drive frame, and the first guiding mechanism is opposite to and parallel to the first drive mechanism.

[0028] According to one embodiment of the present invention, the guiding mechanism further includes a second guiding mechanism, which is disposed on the second drive frame and the third drive frame, and is disposed on the opposite side of the second drive mechanism and is parallel to the second drive mechanism.

[0029] According to one embodiment of the present invention, the guiding mechanism further includes a third guiding mechanism, wherein the third guiding mechanism is disposed on the third drive frame and the base, and the third guiding mechanism is disposed on the opposite side of the third drive mechanism and is arranged parallel to the third drive mechanism.

[0030] According to an embodiment of the present invention, the first guiding mechanism includes a first guide rod, which is fixed to the second driving frame and extends from the second driving frame upward to the first driving frame. The first driving frame is further provided with a guide groove, and the first guide rod is disposed in the guide groove of the first driving frame. The cooperation between the guide groove of the first driving frame and the first guide rod enables the first driving frame to move up and down only along the axial direction of the first guide rod when it moves.

[0031] According to one embodiment of the present invention, the second guiding mechanism includes a second guide rod and a second sleeve. The second sleeve is disposed on the lower side of the second driving frame, and the second guide rod is fixed on the upper side of the third driving frame at a position directly opposite to the second sleeve.

[0032] According to one embodiment of the present invention, the third guiding mechanism includes a third guide rod and a third sleeve. The third sleeve is disposed on the lower side of the third driving frame, and the third guide rod is fixed to the upper side of the base, at a position directly opposite to the third sleeve.

[0033] According to one embodiment of the present invention, the first piezoelectric element, the second piezoelectric element, and the third piezoelectric element are made of piezoelectric materials, and the piezoelectric materials are selected from the group of inorganic piezoelectric materials composed of lead zirconate titanate (PZT), crystal, lithium niobate (LiNbO3), potassium niobate tantalate (K(Ta,Nb)O3), barium titanate (BaTiO3), lithium tantalate (LiTaO3), and strontium titanate (SrTiO3).

[0034] According to one embodiment of the present invention, a housing is further included, wherein the housing includes an outer shell and an inner shell located within the outer shell, wherein the inner shell is fixed to the second drive frame of the drive frame, and the outer shell is fixed above the base.

[0035] According to another aspect of the present invention, the present invention further provides a camera module, comprising:

[0036] One lens assembly;

[0037] A photosensitive assembly, wherein the lens assembly is disposed in the photosensitive path of the photosensitive assembly; and

[0038] As described in any of the above driving components, wherein the lens assembly is tractably disposed on the driving component, and the driving component drives the lens assembly to move in a specific direction.

[0039] These and other objects, features and advantages of the present invention will become fully apparent from the following detailed description and accompanying drawings. Attached Figure Description

[0040] Figure 1 This is an overall schematic diagram of a camera module according to a first preferred embodiment of the present invention.

[0041] Figure 2 This is an exploded view of the camera module according to the first preferred embodiment of the present invention.

[0042] Figure 3A and Figure 3B This is a schematic diagram of a driving component of the camera module according to the first preferred embodiment of the present invention.

[0043] Figure 4A and Figure 4B This is an exploded view of the driving component according to the first preferred embodiment of the present invention.

[0044] Figure 5A and Figure 5B This is a schematic diagram of the structure of a frame of the driving component according to the first preferred embodiment of the present invention.

[0045] Figure 6A and Figure 6B This is a partial structural diagram of the driving component according to the first preferred embodiment of the present invention, which shows a structural diagram of a second frame of the driving component.

[0046] Figure 7A and Figure 7B This is a schematic diagram of the structure of the driving component according to the first preferred embodiment of the present invention, showing a schematic diagram of the structure of a third frame of the driving component.

[0047] Figure 8A and Figure 8B This is an enlarged structural schematic diagram of a clamping member of the driving assembly according to the first preferred embodiment of the present invention.

[0048] Figure 9This is a schematic diagram of the structure of a circuit board of the driving component according to the first preferred embodiment of the present invention.

[0049] Figure 10 This is a schematic diagram showing the connection between a circuit board and electrical components of the drive assembly according to the first preferred embodiment of the present invention.

[0050] Figure 11 This is a schematic diagram of an electronic device that applies the camera module described in the preferred embodiment of the present invention. Detailed Implementation

[0051] The following description is intended to disclose the present invention and enable those skilled in the art to implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the invention.

[0052] Those skilled in the art should understand that, in the disclosure of this invention, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limiting this invention.

[0053] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0054] Referring to the accompanying drawings of this invention Figures 1 to 10As shown, a driving assembly and its clamping member according to a first preferred embodiment of the present invention, and a camera module with the driving assembly, are described below. The camera module includes a lens assembly 10, a driving assembly 20, and a photosensitive assembly 30, wherein the lens assembly 10 is located in the photosensitive path of the photosensitive assembly 30 and is tractably connected to the driving assembly 20, and is moved by the driving assembly 20 to be held on the photosensitive path of the photosensitive assembly 30. The lens assembly 10 includes an optical lens and a lens barrel, wherein the lens barrel is mounted on the driving assembly 20, and the optical lens is carried within the lens barrel. Preferably, in this preferred embodiment of the present application, the camera module is a dynamic focus camera module, that is, the lens barrel is implemented as a driving element, which can carry and drive the optical lens to move along the photosensitive path to change the relative positional relationship between the optical lens and the photosensitive assembly 30, so as to achieve focusing of the optical lens. Meanwhile, the lens barrel can drive the optical lens to move along a direction perpendicular to the light-sensing path to achieve image stabilization.

[0055] The photosensitive component 30 includes a circuit board assembly 31, a photosensitive chip 32, and a filter assembly 33. The photosensitive chip 32 is the photosensitive portion of the photosensitive component 30, used to receive imaging light from the outside and form an image. The circuit board assembly 31 is electrically connected to the chip and the driving assembly 20. In this embodiment, the photosensitive chip 32 is electrically connected to the circuit board assembly 31 via leads, which can be gold, silver, or copper wires. The leads are installed between the circuit board assembly 31 and the photosensitive chip 32 to achieve electrical connection between them. The leads are formed between the photosensitive chip 32 and the circuit board assembly 31 using either forward or reverse gold wire bonding. Notably, the upward protrusion of the leads formed by reverse gold wire bonding is lower than that formed by forward gold wire bonding. Therefore, preferably, in this specific embodiment, the leads are formed using a reverse gold wire bonding process. The photosensitive chip 32 and the circuit board assembly 31 can be electrically connected in other ways, for example, using a back-side conductive scheme. In this embodiment, the type of the circuit board assembly 31 includes, but is not limited to, flexible boards, rigid boards, rigid-flex boards, ceramic substrates, etc. At least one electronic component is disposed on the circuit board assembly 31, including, but not limited to, resistors, capacitors, inductors, etc. During installation, the electronic component can be mounted and electrically connected to the upper surface of the circuit board using SMT technology. The electronic component can also be partially or completely embedded in the circuit board assembly 31. The light filter assembly 33 is disposed above the photosensitive chip 32 and is used to filter light.

[0056] like Figures 3A to 4BAs shown, the drive assembly 20 includes a housing 21, a drive frame 22, a base 23, at least one drive mechanism 24, and at least one guide mechanism 25. The housing 21 is disposed around the drive assembly 20 to protect the drive assembly 20 and the lens assembly 10. The at least one drive mechanism 24 and the at least one guide mechanism 25 are disposed on the drive frame 22 and the base 23, and the lens assembly 10 is tractably connected to the drive frame 22 of the drive assembly 20. The drive mechanism 24 drives the lens assembly 10 to move along the optical axis direction through the drive frame 22 to achieve zoom or focus of the camera module; and / or drives the lens assembly 10 to move in a direction perpendicular to the optical axis to achieve image stabilization of the camera module.

[0057] In detail, the drive frame 22 includes a first drive frame 221, a second drive frame 222, and a third drive frame 223. The first drive frame 221 is located above the second drive frame 222, the second drive frame 222 is located above the third drive frame 223, and the third drive frame 223 is located above the base 23. It is worth noting that the drive frame 22 is a hollow structure, and the lens assembly 10 is tractably disposed inside the drive frame 22. The first drive frame 221, the second drive frame 222, and the third drive frame 223 are stacked from top to bottom along the optical axis.

[0058] The drive frame 22 is configured as a movable structure, and the first drive frame 221, the second drive frame 222, and the third drive frame 223 of the drive frame 22 are respectively connected to the lens assembly 10 in a driving manner. The first drive frame 221 can carry and drive the lens assembly 10 to move up and down along the optical axis (i.e., drive the lens assembly along the Z-axis) to change the relative positional relationship between the optical lens and the photosensitive component 30, thereby achieving focusing or zooming of the optical lens. The second drive frame 222 can carry and drive the optical lens to move along the Y-axis to achieve image stabilization of the optical lens along the Y-axis. The third drive frame 223 can carry and drive the optical lens to move along the X-axis to achieve image stabilization of the optical lens along the X-axis.

[0059] The drive mechanism 24 is tractably connected to the drive frame 22 and the base 23. The drive mechanism 24 enables the drive frame 22 and the base 23 to form a movable structure, and the drive mechanism 24 drives the lens assembly 10 to move through the drive frame 22. The at least one drive mechanism 24 is tractably disposed on the first drive frame 221, the second drive frame 222, the third drive frame 223, and the base 23 of the drive frame 22. The at least one drive mechanism 24 drives the first drive frame 221 to move along the Z-axis (parallel to the optical axis), and the first drive frame 221 then drives the lens assembly 10 to move up and down along the optical axis, thereby achieving focusing or zooming of the optical lens; and / or drives the second drive frame 222 to move along the Y-axis, and the second drive frame 222 then drives the lens assembly 10 to move along the horizontal Y-axis, thereby achieving image stabilization of the optical lens in the Y-axis direction; and / or drives the third drive frame 223 to move along the X-axis, and the third drive frame 223 then drives the lens assembly 10 to move along the horizontal X-axis, thereby achieving image stabilization of the optical lens in the X-axis direction.

[0060] The drive mechanism 24 includes a piezoelectric element 241, a drive rod 242, and a clamping member 243. The piezoelectric element 241 is tractably connected to the drive rod 242, and the piezoelectric element 241 drives the drive rod 242 to extend and retract in a specific direction. The clamping member 243 is disposed on the drive rod 242 and is fixed to the drive frame 22 or the base 23 so that when the piezoelectric element 241 drives the drive rod 242 to move, the action or reaction force between the drive rod 242 and the clamping member 243 drives the drive frame 22 to move in a specific direction.

[0061] In detail, the drive mechanism 24 further includes a first drive mechanism 24a, a second drive mechanism 24b, and a third drive mechanism 24c. The first drive mechanism 24a is tractably disposed between the first drive frame 221 and the second drive frame 222, and drives the first drive frame 221 to move up and down along the Z-axis (optical axis) based on the second drive frame 222. The second drive mechanism 24b is tractably disposed between the second drive frame 222 and the third drive frame 223, and drives the second frame 222 to move along the Y-axis based on the third drive frame 223. The third drive mechanism 24c is tractably disposed between the third drive frame 223 and the base 23, and drives the third frame 223 to move along the X-axis based on the base 23.

[0062] Accordingly, in this preferred embodiment of the present invention, the first driving mechanism 24a includes a first piezoelectric element 241a, a first driving rod 242a, and a first clamping member 243a. The first piezoelectric element 241a, the first driving rod 242a, and the first clamping member 243a are arranged in a direction parallel to the optical axis. The first piezoelectric element 241a is fixedly disposed on the second driving frame 222. The first driving rod 242a is located above the first piezoelectric element 241a and is driveably connected to the first piezoelectric element 241a. The first clamping member 243a is disposed on the first driving frame 221 and is connected to the other end of the first driving rod 242a. The extension and retraction of the first piezoelectric element 241a are controlled by applying a voltage to the first piezoelectric element 241a. When the first piezoelectric element 241a is turned on, it extends and retracts along the optical axis, supported by the second drive frame 222, and drives the first clamping member 243a to move up and down via the first drive rod 242a. The other end of the first clamping member 243a is disposed on the first drive frame 221, and the first clamping member 243a drives the first drive frame 221 to move along the optical axis, achieving focusing. It is understood that in this preferred embodiment of the present invention, the first clamping member 243a is an optional implementation of the clamping member 243.

[0063] In existing technologies, the clamping force generated by existing clamping components is prone to errors. The clamping force can vary significantly due to assembly differences, and these assembly errors directly affect the clamping force. To address the shortcomings of the existing technology, this invention provides a novel clamping component. The first clamping component 243a is designed as a one-piece clamping component, eliminating the need for subsequent assembly and reducing errors during the assembly process. The first clamping component 243a is composed of an elastic mechanism. Viewed from above, the first clamping component 243a has a triangular structure and is hollow. A first driving rod 242a passes through the hollow portion of the first clamping component 243a, and the first clamping component 243a surrounds the side of the first driving rod 242a. The diameter of the inscribed circle of the hollow triangular structure of the first clamping component 243a is smaller than the diameter of the first driving rod 242a. The first driving rod 242a contacts three points on the three sides of the inner wall of the first clamping component 243a, so that the first clamping component 243a provides clamping force to the first driving rod 242a, thereby providing driving force to the first driving rod 242a.

[0064] The first clamping member 243a is fixed to one side of the first drive frame 221 and connected to the first drive rod 242a. The first drive rod 242a drives the first drive frame 221 to move up and down in a direction parallel to the optical axis.

[0065] like Figure 8A and Figure 8B As shown, the first clamping member 243a further includes a clamping end 2431a and a fixed end 2432a integrally extending from the clamping end 2431a. The clamping end 2431a of the first clamping member 243a is tractably disposed on the first driving rod 232a, and the fixed end 2432a of the first clamping member 243a is disposed on the first driving frame 221. The first clamping member 243a drives the first driving frame 221 to move up and down relative to the second driving frame 222 in a direction parallel to the optical axis via the fixed end 2432a. Preferably, in this preferred embodiment of the invention, the clamping end 2431a extends integrally from the fixed end 2432a in a direction perpendicular to the optical axis.

[0066] In this preferred embodiment of the invention, the clamping force of the clamping member 243 can remain constant when the clamping member 243 is within the range of non-plastic deformation.

[0067] The first clamping member 243a has a notch. The triangular structure of the first clamping member 243a includes three sides. One side, near the first driving frame 221, extends upward to form a rectangular cantilever beam and inward to form a gripper. The other side, also near the first driving frame 221, extends downward and inward to form a gripper. The two grippers engage to clamp and fix the first clamping member 243a onto the first driving frame 221. Due to the cantilever beam, the first clamping member 243a can deform freely. On the two sides of the first clamping member 243a furthest from the first driving frame 221, one side is a fixed side, and the other side is a movable side with elastic deformation. The movable side can deform, facilitating the passage of the first driving rod 242a through the first clamping member 243a. The surface of the movable side has a horizontal notch, facilitating bending and shaping during subsequent assembly, and allowing adjustment of the spring value K, resulting in better consistency of the clamping member. The novel clamping member provided by this invention has a simple manufacturing process, and the integrated clamping member simplifies its structure. The top view of the first clamping member 243a is not limited to a triangle; it can also be a quadrilateral structure, designed reasonably according to the available space. Furthermore, the quadrilateral clamping member can be equipped with two cantilever beams, with two grippers clamping a structural component, and then connected to the first drive frame 221 through the structural component to improve assembly stability.

[0068] In detail, the clamping end 2431a of the first clamping member 243a has a clamping space 2430a, wherein the first driving rod 242a is clamped in the clamping space 2430a by the clamping end 2431a of the first clamping member 243a. Preferably, in this preferred embodiment of the present invention, the horizontal cross-section of the clamping space 2430a of the clamping end 2431a is triangular, wherein the first driving rod 242a has at least three contact points with the inner surface of the clamping end 2431a, so that the clamping end 2431a can stably clamp the first driving rod 242a. It is understood that, in this preferred embodiment of the present invention, the clamping space 2430a of the clamping end 2431a extends vertically through both sides of the clamping end 2431a, wherein the first driving rod 242a passes through the clamping space 2430a of the clamping end 2431a and is fixed to the clamping space 2430a of the clamping end 2431a.

[0069] The fixing end 2432a of the first clamping member 243a has a fixing groove 2433a, wherein the fixing groove 2433a is located outside the clamping space 2430a of the clamping end 2431a. Correspondingly, the first driving frame 221 is further provided with a groove 2210, wherein the groove 2210 is located near the side of the first driving frame 221. The first clamping member 243a is fixed to the outside of the first driving frame 221 by the locking fit between the fixing end 2432a and the groove 2210 of the first driving frame 221.

[0070] The fixing groove 2433a of the fixing end 2432a and the clamping space 2430a of the clamping end 2431a are arranged back-to-back, wherein the fixing groove 2433a of the fixing end 2432a extends laterally through the fixing end 2432a. Preferably, in this preferred embodiment of the present invention, the through-extending direction of the fixing groove 2433a of the fixing end 2432a is perpendicular to the through-extending direction of the clamping space 2430a of the clamping end 2431a.

[0071] The fixed end 2432a further includes two cantilever beams 24320a and an upper clamping jaw 24321a and a lower clamping jaw 24322a extending integrally outward from the cantilever beams 24320a, wherein the cantilever beams 24320a of the fixed end 2432a extend from the upper end and the lower end of the clamping end 2431a. The two cantilever beams 24320a of the fixed end 2432a, as well as the upper clamping jaw 24321a and the lower clamping jaw 24322a extending integrally from the two cantilever beams 24320a, together form the fixing groove 2433a of the fixed end 2432a. The upper jaw 24321a of the fixed end 2432a extends outward and downward from the cantilever beam 24320a to form a fastening element, and is fastened to the groove 2210 of the first drive frame 221 by the upper jaw 24321a. The lower jaw 24322a of the fixed end 2432a extends outward from the cantilever beam 24320a, and is formed to form a supporting structure by the lower jaw 24322a supporting the lower end of the outer edge of the first drive frame 221 to support and lift the first drive frame 221 upward.

[0072] Preferably, in this preferred embodiment of the invention, the clamping end 2431a is implemented as a triangular clamping structure, wherein the specific structure of the clamping end 2431a is merely exemplary and not limiting. Therefore, in other alternative embodiments of the invention, the clamping end 2431a may also be implemented as other types of clamping structures, such as a quadrilateral clamping structure.

[0073] The clamping end 2431a further includes a clamping base plate 24311a and a fixed plate 24312a and a movable plate 24313a integrally extending inward from both ends of the clamping base plate 24311a. The ends of the fixed plate 24312a and the movable plate 24313a form an adjustable notch for adjusting the clamping force between the clamping end 2431a and the first drive rod 242a.

[0074] It is worth mentioning that, in this preferred embodiment of the present invention, the fixed plate 24312a of the clamping end 2431a is a fixed structure, and the movable plate 24313a is a movable structure with elastic deformation, wherein the movable side can deform to facilitate the first driving rod 242a passing through the first clamping member 243a. The movable plate 24313a is provided with a horizontal notch to facilitate bending and forming during subsequent assembly, and to facilitate adjustment of the spring K value, resulting in better consistency of the clamping member. The clamping member provided by the present invention has a simple manufacturing process, and the one-piece clamping member makes the clamping member structure simple. In other optional embodiments of the present invention, the top view structure of the first clamping member 243a is not limited to a triangle, and can also be set as a quadrilateral structure, which can be reasonably designed according to the space. Furthermore, the quadrilateral clamping member can be provided with two cantilever beams, and two grippers clamp a structural member at the same time, and then the first driving frame 221 is connected through the structural member to improve assembly stability.

[0075] It is worth mentioning that, in this preferred embodiment of the present invention, the first driving mechanism 24a is disposed on the first driving frame 221 and the second driving frame 222, and the first piezoelectric element 241a of the first driving mechanism 24a is fixed to the second driving frame 222. The first driving rod 242a extends from the position of the second driving frame 222 to the first driving frame 221 in a direction parallel to the optical axis, and drives the first driving frame 221 to move up and down in a direction parallel to the optical axis through the first clamping member 243a. In short, in this preferred embodiment of the present application, the first driving mechanism 24a drives the first driving frame 221 to move in a direction parallel to the optical axis with the second driving frame 222 as support.

[0076] like Figures 3A to 5BAs shown, the second drive mechanism 24b includes a second piezoelectric element 241b, a second drive rod 242b, and a second clamping member 243b. The second piezoelectric element 241b is fixedly connected to the third drive frame 223. The second drive rod 242b is disposed on the side of the second piezoelectric element 241b. The second piezoelectric element 241b, the second drive rod 242b, and the second clamping member 243b are arranged along the Y-axis direction. The second clamping member 243b can be configured as an integral clamping member, which does not require subsequent assembly and reduces the error caused by subsequent assembly. The second clamping member 243b is composed of an elastic mechanism. The cross-sectional view of the second clamping member 243b along the Y-axis is a triangular structure and hollow. The second driving rod 242b extends along the Y-axis and passes through the hollow portion of the second clamping member 243b. The second clamping member 243b surrounds the side of the second driving rod 242b. The diameter of the inscribed circle of the hollow triangular structure of the second clamping member 243b is smaller than the diameter of the second driving rod 242b. The second driving rod 242b contacts three points on the three sides of the inner wall of the second clamping member 243b, so that the second clamping member 243b provides clamping force to the second driving rod 242b, thereby providing frictional force to the second driving rod 242b. The novel clamping member provided by this invention allows the clamping force of the clamping member to remain constant when the clamping member is within the non-plastic deformation range. The cross-sectional structure of the first clamping member 243a along the Y-axis is not limited to a triangle; it can also be a quadrilateral structure, designed reasonably according to space. The second clamping member 243b is fixedly connected to the lower surface of the second drive frame 222. By applying voltage to the second piezoelectric element 241b, the extension and retraction of the second piezoelectric element 241b are controlled. When the second piezoelectric element 241b is turned on, it extends and retracts along the Y-axis, causing the second drive rod to move along the Y-axis. At this time, the second clamping member 243b is mounted on the second drive frame 222, enabling the second drive frame 222 to move along the Y-axis, thereby causing the first drive frame 221 and the optical lens to move along the Y-axis, achieving image stabilization in the Y-axis direction.

[0077] In simple terms, the second drive mechanism 24b is tractably disposed on the second drive frame 222 and the third drive frame 223, and the second drive mechanism 24b drives the second drive frame 222 to move parallel along the Y-axis direction with the third drive frame 223 as support.

[0078] In detail, the second piezoelectric element 241b of the second drive mechanism 24b is fixedly disposed on the third drive frame 223. The second piezoelectric element 241b, the second drive rod 242b, and the second clamping member 243b of the second drive mechanism 24b are arranged in a direction parallel to the Y-axis, so that when the second piezoelectric element 241b is electrically conductive, the second piezoelectric element 241b drives the second drive rod 242b to move in the Y-axis direction, and drives the second drive frame 222 connected thereto to move synchronously, that is, move in the Y-axis direction, through the second clamping member 243b.

[0079] It is understood that the lens assembly 10 is located inside the drive frame 22. When the second drive frame 222 is driven by the second drive mechanism 24b, the second drive mechanism 24b drives the lens assembly 10 to move along the Y-axis direction through the second drive frame 222, thereby achieving image stabilization of the camera module in the Y-axis direction.

[0080] It is worth mentioning that, in this preferred embodiment of the present invention, the second clamping member 243b of the second driving mechanism 24b is disposed on the lower end face of the second driving frame 222 and is connected in a driving manner to the second driving rod 242b, so that when the second piezoelectric element 241b is electrically energized, the second clamping member 243b drives the second driving frame 222 to move along the Y-axis direction. The second piezoelectric element 241b of the second driving mechanism 24b is disposed on the upper end face of the third driving frame 223, and the second driving rod extends from the second piezoelectric element 241b to the second clamping member 243b in a direction parallel to the Y-axis, so that when the second piezoelectric element 241b is electrically energized, the second piezoelectric element 241b generates a telescoping along the Y-axis direction, and drives the second driving rod to move along the Y-axis direction.

[0081] Preferably, the second clamping member 243b can be configured as an integral clamping member, which eliminates the need for subsequent assembly, thereby reducing errors caused by subsequent assembly. Furthermore, the second clamping member 243b is composed of an elastic mechanism.

[0082] like Figures 3A to 5BAs shown, the third driving mechanism 24c includes a third piezoelectric element 241c, a third driving rod 242c, and a third clamping member 243c. The third piezoelectric element 241c is fixedly connected to the base 23. The third driving rod 242c is disposed on the side of the third piezoelectric element 241c. The third piezoelectric element 241c, the third driving rod 242c, and the third clamping member 243c are arranged along the X-axis. The second clamping member 243b can be configured as an integrated clamping member, which does not require subsequent assembly and reduces the error caused by subsequent assembly. The third clamping member 243c is composed of an elastic mechanism. The cross-sectional view of the third clamping member 243c along the X-axis is a triangular structure and hollow. The third driving rod 242c extends along the X-axis, passing through the hollow portion of the third clamping member 243c. The third clamping member 243c surrounds the side of the third driving rod 242c. The diameter of the inscribed circle of the hollow triangular structure of the third clamping member 243c is smaller than the diameter of the third driving rod 242c. The third driving rod 242c contacts three points on the three sides of the inner wall of the third clamping member 243c, so that the third clamping member 243c provides clamping force to the third driving rod 242c, thereby providing frictional force. The novel clamping member provided by this invention allows the clamping force of the clamping member to remain constant when the clamping member is within the non-plastic deformation range. The cross-sectional structure of the third clamping member 243c along the X-axis is not limited to a triangle; it can also be a quadrilateral structure, designed reasonably according to space. The third clamping member 243c is fixedly connected to the base 23. The extension and retraction of the third piezoelectric element 241c are controlled by applying voltage to the third piezoelectric element 241c. When the third piezoelectric element 241c is activated, it extends and retracts along the X-axis, causing the third drive rod to move along the X-axis. At this time, the third clamping member 243c, positioned on the base 23, enables the third drive frame 223 to move along the X-axis, thereby causing the first drive frame 221, the second drive frame 222, and the lens assembly 10 to move along the X-axis, achieving image stabilization in the X-axis direction. It is understood that...

[0083] In simple terms, the third drive mechanism 24c is tractably disposed on the third drive frame 223 and the base 23, and the third drive mechanism 24c drives the third drive frame 223 to move parallel along the X-axis direction with the base 23 as support.

[0084] In detail, in this preferred embodiment of the present invention, the third piezoelectric element 241c of the third driving mechanism 24c is disposed on the lower end face of the third frame 223, the third clamping member 243c is disposed on the upper end face of the base 23, and the third driving rod 242c extends from the third piezoelectric element 241c to the third clamping member 243c in a direction parallel to the X-axis. When the third piezoelectric element 241c is electrically energized, it generates a telescoping motion along the X-axis, driving the third driving rod 242c to move along the X-axis, wherein the base 23 is a fixed structure. Therefore, when the third driving rod 242c moves along the X-axis, the base 23 drives the third driving frame 223 to move (reverse movement) along the X-axis through the opposing force exerted by the third clamping member 243c on the third driving rod 242c and the third piezoelectric element 241c.

[0085] It is worth mentioning that, in this preferred embodiment of the present invention, the third piezoelectric element 241c, the third drive rod 242c, and the third clamping member 243c are disposed between the third drive frame 223 and the base 23, and the third piezoelectric element 241c is fixed to the lower end face of the third drive frame 223, and the third clamping member 243c is fixed to the upper end face of the base 23.

[0086] It is worth noting that the positions of the third piezoelectric element 241c and the third clamping member 243c can be interchanged. Therefore, in this preferred embodiment of the invention, the mounting position of the third drive mechanism 24c is merely illustrative and not limiting.

[0087] It is worth mentioning that, in this preferred embodiment of the present invention, the second clamping member 242b and the third clamping member 242c can be configured as welded clamping members, wherein the welded clamping member is a clamping member composed of two spring pieces welded together. A section of each of the two spring pieces is welded together by multiple weld points, wherein one spring piece is configured as a fixed spring piece, which is bent and has two contact points with the drive rod; the other spring piece is configured as a movable spring piece, which can undergo elastic deformation and has one contact point with the drive rod. After the movable spring piece is welded to the fixed spring piece, there is a hollow, irregular polygonal shape. The hollow portion is used to prevent the drive rod from moving. The diameter of the inscribed circle of the irregular polygonal shape is smaller than the diameter of the drive rod, so that the clamping member can provide clamping force to the drive rod, thereby providing frictional force to the third drive rod 242c.

[0088] like Figure 3BAs shown, the drive frame 22 has a receiving cavity 220, wherein the receiving cavity 220 extends through the first drive frame 221, the second drive frame 222, and the third drive frame 223 of the drive frame 22, wherein the lens assembly 10 is fixed by the drive frame 22 to the receiving cavity 220 of the drive frame 22. Preferably, in this preferred embodiment of the present invention, the receiving cavity 220 of the drive frame 2 is a circular channel adapted to the lens assembly 10.

[0089] The groove 2210 of the first drive frame 221 is formed at one corner of the first drive frame 221. It is worth mentioning that the first drive frame 221 has four corners, and the groove 2210 is provided at one corner of the first drive frame 221, wherein the groove 2210 is used to engage the upper jaw of the first clamping member 243a.

[0090] The guide mechanism 25 is disposed on the drive frame 22, and the guide mechanism 25 is disposed opposite to the drive mechanism 24. When the drive mechanism 24 drives the drive frame 22 to move, the guide mechanism 25 guides the drive frame 22 to move in a specific direction, thereby improving the stability of the movement of the drive frame 22.

[0091] The guiding mechanism 25 further includes a first guiding mechanism 25a, a second guiding mechanism 25b, and a third guiding mechanism 25c. The first guiding mechanism 25a is disposed on the first drive frame 221 and the second drive frame 222, and is positioned opposite and parallel to the first drive mechanism 24a. Preferably, the first guiding mechanism 25a and the first drive mechanism 24a are disposed at two opposite corners of the drive frame 22. When the first drive mechanism 24a drives the first drive frame 221 to move, the first guiding mechanism 25a guides the first drive frame 221 to move parallel along the Z-axis (optical axis), thereby preventing the first drive frame from tilting during movement.

[0092] The second guide mechanism 25b is disposed on the second drive frame 222 and the third drive frame 223, and the second guide mechanism 25b is disposed opposite to the second drive mechanism 24b, that is, the second guide mechanism 25b is disposed on the opposite side of the second drive mechanism 24b and is disposed parallel to the second drive mechanism 24b, so that when the second drive mechanism 24b drives the second drive frame 222 to move, the second guide mechanism 25b guides the second drive frame to move in a direction parallel to the Y axis, preventing the second drive frame from tilting or translating in other directions during the movement.

[0093] The third guide mechanism 25c is disposed on the third drive frame 223 and the base 23, and the third guide mechanism 25c is positioned opposite to the third drive mechanism 24c, that is, the third guide mechanism 25c is disposed on the opposite side of the third drive mechanism 24c and is parallel to the third drive mechanism 24c, so that when the third drive mechanism 24c drives the third drive frame 223 to move, the third guide mechanism 25c guides the third drive frame to move in a direction parallel to the X-axis, preventing the third drive frame from tilting or translating in other directions during the movement.

[0094] In detail, the first guiding mechanism 25a includes a first guide rod 251a and a first sleeve. The first guide rod 251a is fixed to the second driving frame 222 and extends from the second driving frame 222 upward to the first driving frame 221. The first sleeve is disposed on the side wall of the first driving frame 221 and is a hollow cylindrical structure. It extends outward to form two grippers, which are respectively fixed on the two sides of the first driving frame 221. The first sleeve is fixedly connected to the first driving frame 221 and is a V-shaped structure. The first guide rod 251a passes through the first sleeve so that when the first sleeve moves under the action of the driving mechanism 24, it can only move along the direction of the first guide rod 251a. Consequently, the first driving frame 221 can only move along the direction of the first guide rod 251a. Since the first guide rod 251a is parallel to the optical axis, the lens assembly 10 can move along the optical axis.

[0095] The first drive frame 221 further includes a guide groove 2211, which is formed diagonally opposite to the groove 2210, and is adapted to the first guide rod 251. The first guide rod 251a is disposed in the guide groove 2211 of the first drive frame 221. The cooperation between the guide groove 2211 and the first guide rod 251a of the first drive frame 221 allows the first drive frame 221 to move up and down only along the axial direction of the first guide rod 251a during movement. It is understood that, in this preferred embodiment of the present invention, the first guide rod 251a of the first guide mechanism 25a restricts the movement direction of the first drive frame 221, so that the first drive frame 221 can only move up and down in a direction parallel to the optical axis.

[0096] The second guiding mechanism 25b includes a second guide rod 251b and a second sleeve 252b. The second sleeve 252b is disposed on the lower side of the second drive frame 222, and the second guide rod 251b is fixed on the upper side of the third drive frame, in a position directly opposite to the second sleeve 252b. The second sleeve 252b is a hollow cylindrical structure, with its two ends opening parallel to the Y-axis direction. The second guide rod 251b passes through the second sleeve 252b, so that when the second sleeve 252b moves under the action of the drive mechanism 24, it can only move along the direction of the second guide rod 251b. Consequently, the second drive frame 222 can only move along the direction of the second guide rod 251b. Since the second guide rod 251b is parallel to the Y-axis, the optical lens can move along the Y-axis direction. Preferably, in this preferred embodiment of the present invention, the second guide rod 251b of the second guide mechanism 25b is a straight rod element, used to limit the movement direction of the second drive frame 222, so as to keep the second frame 222 able to move only in a direction parallel to the Y axis.

[0097] The third guiding mechanism 25c includes a third guide rod 251c and a third sleeve 252c. The third sleeve 252c is disposed on the lower side of the third driving frame 223, and the third guide rod 251c is fixed to the upper side of the base 23, in a position directly opposite to the third sleeve 252c. The third sleeve 252c is a hollow cylindrical structure, with its two ends opening parallel to the X-axis direction. The third guide rod 251c passes through the third sleeve 252c, so that when the third sleeve 252c moves under the action of the driving mechanism 24, it can only move along the direction of the third guide rod 251c. Consequently, the third driving frame 223 can only move along the direction of the third guide rod 251c. Since the third guide rod 251c is parallel to the Y-axis, the optical lens can move along the X-axis direction. Preferably, in this preferred embodiment of the present invention, the third guide rod 251c of the third guide mechanism 25c is a straight rod element, used to limit the movement direction of the third drive frame 223, so as to keep the third frame 223 from moving only in a direction parallel to the Y-axis.

[0098] like Figure 5A and Figure 5B As shown, the first drive frame 221 has four corners, one of which has an inward recess for engaging the first guide rod 251a. Another corner of the first drive frame 221 has a slot for engaging the gripper of the first clamping member 243a. The recess and the slot are located at opposite corners of the first drive frame 221. In addition to the two opposite corners, the other two opposite corners of the first drive frame 221 each have a notch to create clearance space for the second drive frame 222.

[0099] like Figure 6A and Figure 6B As shown, the second drive frame 222 includes a second frame body 2221, a first boss 2222, and a second boss 2223. The first boss 2222 and the second boss 2223 are formed on the upper surface of the second frame body 2221, and are positioned opposite each other at two corners of the second frame body 2221. The two bosses are fixedly connected to or integrally formed at two opposite corners of the second drive frame 222 body. A circular opening centered on the optical axis is provided on the second frame body 2221 for placing an optical lens. A first guide mechanism 25a and a first drive mechanism 24a are respectively provided at the other two opposite corners of the second drive frame 222. The first guide mechanism 25a includes a support base and a first guide rod 251a located above the support base. The support base is fixedly connected to the second drive frame 222, supports the first guide rod 251a, and the bottom end of the first guide rod 251a is fixed to the support base.

[0100] A first drive mechanism 24a is disposed above another corner of the main body of the second drive frame 222 (i.e., diagonally opposite the first guide mechanism 25a). A first piezoelectric element 241a is connected to the upper surface of the main body of the second drive frame 222. A first clamping member 243a engages with the slot on the first drive frame 221. A first drive rod 242a is connected to the first piezoelectric element 241a and is disposed between the first piezoelectric element 241a and the first clamping member 243a. A gap exists between the first drive rod 242a and the first clamping member 243a to facilitate movement of the first drive rod 242a within the first clamping member 243a. The three-point contact between the first drive rod 242a and the first clamping member 243a reduces friction during movement, decreasing driving force and improving stability. Two rectangular notches are also provided on the second drive frame 222 for housing Hall elements.

[0101] It is worth mentioning that a recess 2224 is provided downward at the corner of the first drive mechanism 24a on the second drive frame 222. Further, a protrusion extends downward from the drive frame 22. The horizontal cross-sectional area of ​​the recess is larger than the horizontal cross-sectional area of ​​the first piezoelectric element 241a. The recess is used to place the first piezoelectric element 241a. By using the recess 2224 to lower the first piezoelectric element 241a, the length of the first drive rod 242a can be increased while maintaining a constant height, allowing the first clamping member 243a to have a greater stroke, thereby achieving a greater focusing stroke.

[0102] Preferably, the first piezoelectric element 241a is configured as an element that can extend and retract in the Y-axis direction. The first piezoelectric element 241a is made of a piezoelectric material. The piezoelectric material can be inorganic piezoelectric materials such as lead zirconate titanate (PZT), crystal, lithium niobate (LiNbO3), potassium niobate tantalate (K(Ta,Nb)O3), barium titanate (BaTiO3), lithium tantalate (LiTaO3), and strontium titanate (SrTiO3). The first piezoelectric element 241a is configured as a laminated structure formed by alternately laminating multiple piezoelectric layers and multiple electrode layers made of the above-mentioned piezoelectric materials. By controlling the voltage applied to the first piezoelectric element 241a, the extension and retraction of the first piezoelectric element 241a can be controlled. The first piezoelectric element 241a has a shape that can extend and retract in the optical axis direction, and is not limited to a prism shape, but can also be cylindrical, etc. The first drive rod 242a is formed in a cylindrical shape and extends along the optical axis direction. The first drive rod 242a is made of a composite resin material containing fibers such as carbon fiber. One end of the first drive rod 242a is fixed to one end of the first piezoelectric element 241a.

[0103] like Figure 7A and Figure 7B As shown, the drive frame 22 and the base 23 form a quadrilateral plate structure. The drive frame 22 and the base 23 each have interconnecting cavities for accommodating the lens assembly 10. The third drive frame 223 includes a third frame body 2231, at least one second drive rod support platform 2232, and a second guide rod base 2233. The second drive rod support platform 2232 and the second guide rod base 2233 are disposed on the upper surface of the third frame body 2231. Notably, the third frame body 2231, the second drive support platform 2232, and the second guide rod base 2233 are an integral structure, meaning the second drive support platform 2232 and the second guide rod base 2233 are integrally formed on the upper surface of the second frame body 2231. The second guide rod base 2233 is fixed to the upper surface of the second frame body 2231, wherein the second guide rod 251b is fixedly supported by the second guide rod base 2233.

[0104] It is worth mentioning that, in this preferred embodiment of the present invention, the second drive support platform 2232 is a U-shaped recess with the opening facing upward, used to support the second drive rod 242b of the second drive mechanism 24b.

[0105] In other words, a second piezoelectric element 241b is provided on one side of the third drive frame 223, and a U-shaped recess is provided at a certain distance on the same side to support the second drive rod 242b. At the same time, a second clamping member 243b is provided on the lower surface of the second drive frame 222, and the second drive rod 242b can pass through the second clamping member 243b. The U-shaped recesses are arranged along the y-axis direction, and the number of U-shaped recesses is at least one, but can also be two or three.

[0106] The second piezoelectric element 241b is configured to be extendable and retractable in the Y-axis direction. The second piezoelectric element 241b is made of a piezoelectric material. The piezoelectric material can be inorganic piezoelectric materials such as lead zirconate titanate (PZT), crystal, lithium niobate (LiNbO3), potassium niobate tantalate (K(Ta,Nb)O3), barium titanate (BaTiO3), lithium tantalate (LiTaO3), and strontium titanate (SrTiO3). The second piezoelectric element 241b is configured as a laminated structure formed by alternately laminating multiple piezoelectric layers and multiple electrode layers made of the aforementioned piezoelectric materials. The extension and retraction of the second piezoelectric element 241b can be controlled by controlling the voltage applied to it. The second piezoelectric element 241b is extendable and retractable in the Y-axis direction. The second drive rod 242b can be cylindrical and extends along the Y-axis direction. The second drive rod 242b is made of a composite resin material containing fibers such as carbon fiber. One end of the second drive rod 242b is fixed to one end of the second piezoelectric element 241b.

[0107] When the second piezoelectric element 241b is activated, the second drive rod 242b and the second clamping member 243b work together to allow the second drive frame 222 to move linearly along the Y-axis under the drive of the second clamping member 243b. During Y-axis anti-shake operation, the second piezoelectric element 241b is a fixed device, and the second clamping member 243b is a movable device. Since the second clamping member 243b is mounted on the second drive frame 222, during Y-axis anti-shake operation, the second drive frame 222 moves along the Y-axis via the second clamping member 243b.

[0108] The third frame body 2231 of the third drive frame 223 has an upper end face and a lower end face, wherein the second drive mechanism 242b and the second guide mechanism 25b are disposed on opposite sides of the upper end face of the third frame body 2231.

[0109] The third piezoelectric element 241c of the third drive mechanism 24c is fixed to the lower end face of the third frame body 2231 of the third drive frame 223. Accordingly, the third drive frame 223 further includes a third drive rod support platform 2234, wherein the third drive rod support platform 2234 is located on the lower end face of the third frame body 2231, and the third drive rod support platform 2234 is a U-shaped recess with an opening facing downward to restrict the movement direction of the third drive rod 242c.

[0110] It is worth mentioning that, in this preferred embodiment of the present invention, the second piezoelectric element 241b and the third piezoelectric element 241c are disposed on the third drive frame 223, and the third piezoelectric element 241b and the third piezoelectric element 241c are supported by the third drive frame 223, which helps to simplify the circuit structure of the drive mechanism 24.

[0111] Preferably, in this preferred embodiment of the present invention, the second piezoelectric element 241b is fixed to the upper end face of the third frame body 2231, the third piezoelectric element 241c is fixed to the lower end face of the third frame body 2231, and the second piezoelectric element 241b and the third piezoelectric element 241c are located on adjacent sides of the third frame body 2231.

[0112] A third piezoelectric element 241c is disposed on the lower surface of the main body of the third drive frame 223 adjacent to the second piezoelectric element 241b. The third clamping member 243c is disposed at the same corner as the second piezoelectric element 241b. The third clamping member 243c is fixedly disposed on the upper surface of the base 23, and the third clamping member 243c is disposed at the same corner as the second clamping member 243b.

[0113] When the third piezoelectric element 241c is activated, the third drive rod 242c and the third clamping member 243c work together to allow the third drive frame 223 to move linearly along the X-axis under the drive of the third piezoelectric element 241c. During X-axis anti-shake operation, since the base 23 is a fixed mechanism and the third clamping member 243c is fixed to the base 23, while the third piezoelectric element 241c is a movable device and is mounted on the third drive frame 223, the third drive frame 223 moves along the X-axis during X-axis anti-shake operation.

[0114] Preferably, the third piezoelectric element 241c is configured as a telescopic element in the X-axis direction. The third piezoelectric element is made of a piezoelectric material. The piezoelectric material can be inorganic piezoelectric materials such as lead zirconate titanate (PZT), crystal, lithium niobate (LiNbO3), potassium niobate tantalate (K(Ta,Nb)O3), barium titanate (BaTiO3), lithium tantalate (LiTaO3), and strontium titanate (SrTiO3). The third piezoelectric element 241c is configured as a laminated structure formed by alternately laminating multiple piezoelectric layers and multiple electrode layers made of the above-mentioned piezoelectric materials. The telescopic movement of the third piezoelectric element 241c can be controlled by controlling the voltage applied to it. The shape of the third piezoelectric element 241c, which is telescopic in the X-axis direction, is not limited to a prism shape; it can also be cylindrical, etc. The third drive rod 242c is formed in a cylindrical shape and extends along the X-axis direction. The third drive rod 242c is made of a composite resin material containing fibers such as carbon fiber. One end of the third drive rod 242c is fixed to one end of the third piezoelectric element 241c.

[0115] It is worth mentioning that a second guide mechanism 25b is provided on the opposite side of the second piezoelectric element 241b. The second guide mechanism 25b includes a second sleeve 252b and a second guide rod 251b. The second sleeve 252b has a two-section structure. One section is a hollow cylinder structure with one end open, used to surround and fix the second guide rod 251b. The other end has openings on both sides, allowing the second guide rod 251b to pass through the sleeve. The sleeve is designed as a U-shaped structure with an open top, which can reduce assembly errors. The second guide rod 251b is not fixed to the first sleeve 252b with the opening, but can slide along the Y-axis relative to the first sleeve 252b with the opening, allowing the second guide rod 251b to move freely along the Y-axis.

[0116] like Figures 3A to 4B As shown, the base 23 supports the third drive frame 223, and the base 23 has a circular opening centered on the optical axis. The third clamping member 243c of the third drive mechanism 24c is fixed to the upper surface of the third drive frame 223, and the third guide rod 251c of the third guide mechanism 25c is fixed to the upper surface of the third drive frame 223 and located on the opposite side of the third drive mechanism 24c.

[0117] The base 23 further includes a base body 231, and a third guide rod base 232 is disposed on the base body 231, wherein the third guide rod 25c is fixed to the third guide rod base 232 of the base 23.

[0118] Preferably, in this preferred embodiment of the present invention, a U-shaped recess is provided at a certain distance on one side of the base 23 to support the third drive rod 242c, and a third clamping member 243c is provided on the upper surface of the base 23. More preferably, the third clamping member 243c and the second clamping member 243b are located at the same corner. The third drive rod 242c can pass through the third clamping member 243c, and the U-shaped recesses are arranged along the x-axis direction. The number of U-shaped recesses is at least one, but can also be two or three.

[0119] A third guiding mechanism 25c is provided on the opposite side of the third clamping member 243c. The third sleeve 252c includes two sleeves. One sleeve is a hollow cylindrical structure with one end open, used to surround and fix the third guide rod 251c. The other sleeve has openings at both ends so that the third guide rod 251c can pass through it. This sleeve is a U-shaped structure with an open top to reduce errors. The third guide rod 251c is not fixed to the third sleeve 252c with openings, but can slide along the Y-axis relative to the third sleeve 252c with openings, so that the third guide rod 251c can move freely along the Y-axis.

[0120] It is worth mentioning that in existing technologies, the movement of the optical lens is achieved using a coil-magnet combination. Electromagnetic force is an indirect force, requiring no direct contact. However, the coil-magnet structure combined with a spring inevitably generates oscillations, leading to errors. Furthermore, the driving force of the lens driven by electromagnetic force is relatively small, with a short stroke, placing strict requirements on lens quality. Therefore, to solve the problems existing in the prior art, this invention utilizes a stacked piezoelectric element as the driving element to drive the optical lens along the x, y, and z axes. The stacked piezoelectric element drives the optical lens through friction. Through the cooperation of the stacked piezoelectric element, the driving rod, and the clamping components, focusing and image stabilization of the optical lens are achieved. The stroke of the optical lens driven by the stacked piezoelectric element depends on the length of the driving rod; therefore, increasing the length of the driving rod allows for a larger stroke. Simultaneously, the stacked piezoelectric element has a short settling time and fast response time, enabling the optical lens to reach the corresponding position more quickly, achieving faster and more stable focusing and image stabilization.

[0121] like Figures 3A to 3BAs shown, the housing 21 is disposed outside the drive mechanism 24 and the drive frame 22 to protect the drive mechanism 24. The housing 21 further includes an inner housing 211 and an outer housing 212, wherein the inner housing 211 is fitted inside the outer housing 212, and the inner housing 211 is located above the second drive frame 222 of the drive frame 22. The outer housing 212 is located outside the inner housing 211 and covers the inner housing 211, the drive mechanism 24, and the drive frame 22 of the drive assembly 20. Preferably, in this preferred embodiment of the present invention, the outer housing 212 is fixed above the base 23, and the outer housing 212 and the base 23 form a housing receiving cavity 210, in which the inner housing 211, the drive frame 22, and the drive mechanism 24 are placed.

[0122] The housing 21 is further provided with a light-transmitting hole 213, wherein the diameter of the light-transmitting hole 213 is not less than the diameter of the light-transmitting hole of the lens assembly 10. Preferably, the light-transmitting hole 213 of the housing 21 is coaxial with the accommodating cavity 220 of the drive frame 22.

[0123] The inner housing 211 has four sides and a top surface, with a circular opening in the center of the top surface for housing an optical lens. The four sides of the inner housing 211 are fixed to the upper surface of the second drive frame 222, meaning the inner housing 211 can move with the second drive frame 222. When the optical lens moves along the x-axis or y-axis, the inner housing 211 moves together with the second drive frame 222 to avoid interference. The four sides of the inner housing 211 are located at the outer edge of the second drive frame 222, meaning the mechanisms on the second drive frame 222 are all located inside the housing. The inner housing 211 also protects the first drive mechanism 24a and the first guide mechanism 25a. The first drive frame 221 is located inside the inner housing 211, which protects the first drive frame 221 and the optical lens, while also preventing dust from entering and causing contamination. Two circular holes are provided at two opposite corners on the upper surface of the inner housing 211. The two circular holes correspond to the first drive rod 242a and the first guide rod 251a, respectively. The first drive rod 242a and the guide rod pass through the two circular holes. When the travel in the optical axis direction is too large, the length of the first drive rod 242a increases. Since one end of the first drive rod 242a is a free end, the stability of the excessively long first drive rod 242a is poor, and it will bend in the plane direction perpendicular to the direction of movement. By providing circular holes, horizontal movement caused by bending of the first drive rod 242a can be prevented, the first drive rod 242a can maintain a better straightness, and the bending of the first drive rod 242a caused by sidm vibration can also be prevented. The inner diameter of the circular hole corresponding to the first drive rod 242a is larger than the outer diameter of the first drive rod 242a, and the inner diameter of the circular hole corresponding to the first guide rod 251a is larger than the outer diameter of the first guide rod 251a. This prevents the first drive rod 242a and the first guide rod 251a from failing to pass through the circular hole due to an excessively small inner diameter, and also avoids friction between the first drive rod 242a and the first guide rod 251a and the inner wall of the circular hole, which would increase resistance. Furthermore, a limiting device can be provided at the top of the circular hole to prevent the first drive rod 242a or the first guide rod 251a from extending beyond the housing when the length of the first drive rod 242a or the first guide rod 251a is too long. Since the two circular holes are located diagonally, it also prevents the second drive frame 222 from tilting (anti-tilt), improving the stability of the second drive frame 222.

[0124] The inner housing 211 includes a top 2111 and a plurality of legs 2112 extending integrally downward from the top 2111, wherein the top 2111 of the inner housing 211 is provided with a circular through hole. The legs 2112 of the inner housing 211 are supported at the upper end of the second drive frame 222 of the drive frame 22.

[0125] As an example, in this preferred embodiment of the present invention, the inner shell 211 is a quadrilateral support shell, wherein the inner shell 211 is fixed to the upper end face of the second frame 222 and can move synchronously with the second frame 222.

[0126] The inner housing 211 and the second frame 222 together form a focusing cavity 2220, wherein the first frame 221 is held in the focusing cavity 2220 formed by the inner housing 211 and the second frame 222, and can be driven to move up and down in the focusing cavity 2220 along the optical axis.

[0127] Therefore, it is understood that in this preferred embodiment of the present invention, the first drive frame 221, the first drive mechanism 24a, and the first guide mechanism 25a of the drive frame 22 are covered by the inner shell 211 of the housing 21, forming a sealed structure with the inner shell 211 and the second frame 222, which helps to prevent dust from entering the interior of the housing. Furthermore, it is understood that since the inner shell 211 is disposed on the upper end face of the second frame 222, and the inner shell 211 can move synchronously with the second frame 222, when the lens assembly 10 moves along the x-axis or y-axis, the inner shell 211 can move together with the second drive frame 222, avoiding interference.

[0128] The four legs 2112 of the inner housing 211 are disposed on the outer edge of the second drive frame 222. Therefore, it can be understood that the mechanisms located on the second drive frame 222 are all disposed inside the inner housing 211, which also serves to protect the first drive mechanism 24a and the first guide mechanism 25. The first drive frame 221 is disposed inside the housing, which protects the first drive frame 221 and the optical lens, while also preventing dust from entering and causing contamination.

[0129] The inner housing 211 is further provided with at least two holes 2110, wherein the at least two holes 2110 correspond to the first drive rod 242a of the first drive mechanism 24a and the first guide rod 251a of the first guide mechanism 25a. Preferably, in this preferred embodiment of the present invention, the upper ends of the first drive rod 242a and the first guide rod 251a of the first guide mechanism 25a respectively penetrate through the holes 2110 of the inner housing 211. Therefore, when the travel in the optical axis direction is too large, the length of the first drive rod 242a increases. Since one end of the first drive rod 242a is a free end, the stability of the excessively long first drive rod 242a is poor, and bending in the planar direction perpendicular to the direction of movement will occur. By providing a circular hole, horizontal movement caused by bending of the first drive rod 242a can be prevented, the first drive rod 242a can maintain a better straightness, and bending of the first drive rod 242a caused by sidm vibration can also be prevented.

[0130] The drive assembly 20 further includes a drive circuit board 26 and a plurality of electronic components 27, wherein the plurality of electronic components 27 are electrically connected to the drive circuit board 26. The drive circuit board 26 is disposed on the drive frame 22, and the first drive mechanism 24a, the second drive mechanism 24b, and the third drive mechanism 24c of the drive mechanism 24 are respectively electrically connected to the drive circuit board 26. Therefore, in this preferred embodiment of the present invention, the plurality of electronic components 27 and the drive mechanism 24 of the drive assembly 20 are electrically connected through the drive circuit board 26.

[0131] It is understood that, in this preferred embodiment of the present invention, the plurality of electronic components 27 may be, but are not limited to, electronic components such as resistors, capacitors and Hall elements.

[0132] like Figures 9 to 10 As shown, in this preferred embodiment of the present invention, the third driving frame 223 is implemented as a frame structure with embedded metal conductors, that is, the interior of the third driving frame 223 is a molded embedded metal frame, and the exterior is an insulator frame, which can be used to conduct circuits. The driving circuit board 26 is supported by the third driving frame 223 of the driving frame 22 and is electrically connected to the third driving frame 223.

[0133] It is worth mentioning that, in this preferred embodiment of the present invention, the second piezoelectric element 241b and the third piezoelectric element 241c are disposed on the third drive frame 223, and the second piezoelectric element 241b and the third piezoelectric element 241c are respectively electrically connected to the embedded metal phase of the third drive frame 223.

[0134] In detail, the second piezoelectric element 241b and the third piezoelectric element 241c are fixedly disposed on the third drive frame 223, with the second piezoelectric element 241b disposed on the upper surface of the third drive frame 223 and the third piezoelectric element 241c disposed on the lower surface of the third drive frame 223. Therefore, in this preferred embodiment of the invention, the second piezoelectric element 241b and the third piezoelectric element 241c are fixedly disposed on the third drive frame 223, concentrating the circuitry within the third frame and simplifying the conductivity of the drive mechanism.

[0135] It is worth mentioning that the second piezoelectric element 241b and the third piezoelectric element 241c are each provided with a plurality of pins, which are connected to the metal portion on the third drive frame 223. Therefore, in this preferred embodiment of the present invention, the drive circuit board 26 is connected to the second piezoelectric element 241b and the third piezoelectric element 241c through the metal portion embedded in the third drive frame 223.

[0136] Preferably, in this preferred embodiment of the present invention, the drive circuit board 26 has an L-shaped circuit board structure, wherein the drive circuit board 26 has two sides perpendicular to each other, one side being disposed on one side of the second guide mechanism 25b and the other side being disposed on one side of the third guide mechanism 25c, thereby avoiding the two sides where the second drive element 241a and the third drive element 241c are disposed. It is worth mentioning that, since the second drive frame 222 and the third drive frame 223 are located on the second piezoelectric element 241b and the third piezoelectric element 241c, the second clamping member 243b and the third clamping member 243c, the structure of the drive frame 22 is complex. Therefore, by avoiding the two sides where the second drive element 241a and the third drive element 241b are disposed, the drive circuit board 26 can make reasonable use of space and reduce the size of the camera module.

[0137] In this preferred embodiment of the invention, the conductive element (e.g., a metal wire or conductive contact) of the second driving element 241b extends downward to the upper end face of the third driving frame 223, and the second driving element 241b is electrically connected to a metal conductor built into the third driving frame 223 to achieve electrical conduction of the second driving mechanism 24b. The conductive element of the third driving element 241c extends upward to the lower end face of the third driving frame, and the third driving element 241c is electrically connected to a metal conductor built into the third driving frame 223 to achieve electrical conduction of the third driving mechanism 24c. It is understood that, in this preferred embodiment of the invention, the third driving frame 223 further includes at least one FPC unit, wherein the FPC unit is disposed on the upper end face and / or lower end face of the third driving frame 223, and the at least one FPC unit is connected to a metal conductor built into the third driving frame 223. Therefore, the conductive element of the third driving element extends upward and is electrically connected to the FPC on the surface of the third frame, and the conductive element of the second driving element extends downward and is electrically connected to the FPC on the surface of the third frame. It is understood that in this preferred embodiment of the invention, the OIS portion of the circuitry is concentrated in the third frame, thus greatly simplifying the conductivity of the driving assembly 20.

[0138] Preferably, one side of the drive circuit board 26 located on one side of the third guide mechanism 25c can be configured as a double-layer structure, with the lower layer disposed on the upper surface of the third drive frame 223 and the upper layer disposed on the upper surface of the second drive frame 222. The lower drive circuit board extends upward to form a connecting portion that connects to the upper drive circuit board. The first-layer piezoelectric element has pins that connect to the upper drive circuit board. The upper drive circuit board can be used to conduct the first-layer piezoelectric element and also to conduct the Hall element disposed on the second drive frame 222. The lower drive circuit board extends downward to form a connecting portion that connects to the drive circuit board disposed on one side of the second guide mechanism 25b. The main body of the drive circuit board disposed on one side of the second guide mechanism 25b is disposed on the upper surface of the base 23, and one side of the drive circuit board on the upper surface of the base 23 extends downward to expose the outer casing 21 and connect to an external circuit. The connection parts of the drive circuit board are all located on the outside of the drive frame 22, which can prevent the drive circuit board from obstructing the movement of the lens assembly 10 when it moves along the X-axis and Y-axis, and can avoid space.

[0139] The drive circuit board 26 is an integrated circuit board structure, that is, the electronic components 27, the first drive mechanism 24a, the second drive mechanism 24b and the third drive mechanism 24c of the drive mechanism 20 are electrically connected through the integrated drive circuit board 26, which helps to simplify the circuit layout of the drive assembly 20 and reduce the size of the camera module.

[0140] The drive circuit board 26 includes a first circuit board unit 261, a second circuit board unit 262, and a third circuit board unit 263, wherein the first circuit board unit 261, the second circuit board unit 262, and the third circuit board unit 263 are connected sequentially. The first circuit board unit 261 is located on one side of the upper end face of the second drive frame 222; the second circuit board unit 262 is disposed on the third drive frame 223 and is located below the first circuit board unit 261; the third circuit board unit 263 is disposed on the base 23 and is located on the other side adjacent to the second circuit board unit, thereby forming an L-shaped structure for the drive circuit board 26.

[0141] The first circuit board unit 261 is disposed on the upper surface of the second drive frame 222, and is electrically connected to the electronic components 27 disposed on the lower end of the first drive frame 221 and the upper end of the second drive frame 222, as well as the first piezoelectric element 241a. The second circuit board unit 262 is disposed on the upper surface of the third drive frame 223, and is fixed to the third drive frame 233. When the third drive frame 233 moves along the X-axis, the second circuit board unit 262 can move synchronously with the third drive frame 233. It is worth mentioning that, in this preferred embodiment of the present invention, the second circuit board unit 262 is used to electrically connect the electronic components 27 disposed on the lower end of the second drive frame 222 and the upper end of the third drive frame 223. The third circuit board unit 263 is disposed on the base 23, and is electrically connected to each of the electronic components 27 disposed at the lower end of the third drive frame 223 and at the upper end of the base 23.

[0142] The drive circuit board 26 further includes a first circuit connection portion 264 and a second circuit connection portion 265, wherein the first circuit connection portion 264 is located between the first circuit board unit 261 and the second circuit board unit 262, and the second circuit board connection portion 265 is located between the second circuit board unit 262 and the third circuit board unit 263. The first circuit connection portion 264 and the second circuit connection portion 265 are arc-shaped or C-shaped structures protruding from the inside to the outside, avoiding the structure of the drive frame 22, that is, forming a clearance space to prevent the drive frame 22 from colliding or interfering with the drive circuit board 26 during movement.

[0143] like Figure 11 As shown, an electronic device according to another aspect of the present invention is illustrated in the following description. The electronic device includes an electronic device body 100 and at least one camera module 200 disposed on the electronic device body 100, wherein the camera module 200 has the same structure and function as the camera module described in the first preferred embodiment above, and will not be repeated here. It is understood that in this preferred embodiment of the present invention, the camera module 200 is mounted on the electronic device body 100, wherein the electronic device body 100 may be, but is not limited to, a mobile phone, a tablet computer, or other electronic devices with shooting capabilities. In this preferred embodiment of the present invention, the camera module 200 may be mounted on the back of the electronic device body 100 as a rear camera of the electronic device; or the camera module 200 may be mounted on the front of the electronic device body 100 as a front camera of the electronic device. Preferably, in this preferred embodiment of the present invention, the camera module is a rear camera.

[0144] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The objectives of the present invention have been fully and effectively achieved. The functions and structural principles of the present invention have been demonstrated and explained in the embodiments, and any variations or modifications may be made to the implementation of the present invention without departing from the stated principles.

Claims

1. A driving component, characterized in that, include: A driving frame, wherein the driving frame includes a first driving frame, a second driving frame and a third driving frame, and the second driving frame is located between the first driving frame and the third driving frame. A base, wherein the base is located below the third drive frame; At least one drive mechanism, wherein the drive mechanism includes a first drive mechanism, a second drive mechanism and a third drive mechanism, the first drive mechanism is tractably connected to the first drive frame and the second drive frame, the second drive mechanism is tractably connected to the second drive frame and the third drive frame, and the third drive mechanism is tractably connected to the third drive frame and the base. as well as A drive circuit board is provided, wherein the circuit board is disposed on the third drive frame, and the third drive frame has embedded metal conductors. The second drive mechanism is located on the upper end face of the third drive frame, and the third drive mechanism is located on the lower end face of the third drive frame. The second drive frame and the third drive frame are electrically connected to the drive circuit board through the embedded metal conductors of the third drive frame. One side of the drive circuit board is provided with a double-layer structure, with the lower layer disposed on the upper surface of the third drive frame and the upper layer disposed on the upper surface of the second drive frame. The lower drive circuit board extends upward to form a connecting part and connects with the upper drive circuit board. The third drive frame includes at least one FPC unit, wherein the FPC unit is disposed on the upper end face and the lower end face of the third drive frame, and the at least one FPC unit is connected to a metal conductor built into the third drive frame. The second drive mechanism includes a second piezoelectric element, and the third drive mechanism includes a third piezoelectric element, wherein the second piezoelectric element is disposed on the upper end face of the third drive frame, and the third piezoelectric element is disposed on the lower end face of the third drive frame. The conductive element of the second piezoelectric element extends downward to the upper end face of the third drive frame, and the conductive element extends downward to be electrically connected to the FPC on the surface of the third drive frame so as to be electrically connected to the metal conductor built into the third drive frame. The conductive element of the third piezoelectric element extends upward to the lower end face of the third drive frame, and the conductive element extends upward to be electrically connected to the FPC on the surface of the third drive frame so as to be electrically connected to the metal conductor built into the third drive frame.

2. The drive assembly according to claim 1, wherein the second drive mechanism includes a second drive rod and a second clamping member, the second clamping member being fixed to the second drive frame, and the second drive rod being tractably disposed on the second piezoelectric element and the second clamping member, wherein the third drive mechanism includes a third drive rod and a third clamping member, the third clamping member being fixed to the base, and the third drive rod being tractably disposed on the third piezoelectric element and the third clamping member.

3. The drive assembly according to claim 2, wherein the first drive mechanism includes a first piezoelectric element, a first drive rod, and a first clamping member, wherein the first piezoelectric element is disposed on the second drive frame, the first clamping member is fixed to the first drive frame, the first drive rod is tractably disposed on the first piezoelectric element and the first clamping member, and the first piezoelectric element, the first drive rod, and the first clamping member are disposed along the Z-axis direction.

4. The driving assembly according to claim 3, wherein the driving circuit board includes a first circuit board unit, a second circuit board unit, and a third circuit board unit, wherein the first circuit board unit, the second circuit board unit, and the third circuit board unit are connected in sequence, the first circuit board unit is located on one side of the upper end face of the second driving frame, the second circuit board unit is disposed on the third driving frame, and the second circuit board unit is located below the first circuit board unit; the third circuit board unit is disposed on the base, and the third circuit board unit is located on the other side adjacent to the second circuit board unit.

5. The drive assembly according to claim 4, further comprising a plurality of electronic components, wherein the plurality of electronic components are disposed on the drive frame, the first circuit board unit is disposed on the upper surface of the second drive frame, the second circuit board unit is disposed on the upper surface of the third drive frame, and the second circuit board unit is fixed to the third drive frame.

6. The driving assembly according to claim 5, wherein the driving circuit board further includes a first circuit connection portion and a second circuit connection portion, wherein the first circuit connection portion is located between the first circuit board unit and the second circuit board unit, the second circuit board connection portion is located between the second circuit board unit and the third circuit board unit, and the first circuit connection portion and the second circuit connection portion are bow-shaped or C-shaped structures protruding from the inside to the outside.

7. The drive assembly of claim 4, further comprising at least one guide mechanism, wherein the at least one guide mechanism is disposed on the drive frame, wherein the guide mechanism includes a first guide mechanism disposed on the first drive frame and the second drive frame, and the first guide mechanism is positioned opposite to and parallel to the first drive mechanism.

8. The drive assembly of claim 7, wherein the guiding mechanism further comprises a second guiding mechanism disposed on the second drive frame and the third drive frame, and the second guiding mechanism is disposed on the opposite side of the second drive mechanism and disposed parallel to the second drive mechanism.

9. The drive assembly of claim 7, wherein the guiding mechanism further comprises a third guiding mechanism, wherein the third guiding mechanism is disposed on the third drive frame and the base, and the third guiding mechanism is disposed on the opposite side of the third drive mechanism and is arranged parallel to the third drive mechanism.

10. The drive assembly according to claim 7, wherein the first guide mechanism includes a first guide rod, the first guide rod being fixed to the second drive frame and extending upward from the second drive frame to the first drive frame, the first drive frame further having a guide groove, the first guide rod being disposed in the guide groove of the first drive frame, the cooperation between the guide groove of the first drive frame and the first guide rod causing the first drive frame to move only up and down along the axial direction of the first guide rod during movement.

11. The drive assembly according to claim 8, wherein the second guide mechanism includes a second guide rod and a second sleeve, the second sleeve being disposed on the lower side of the second drive frame, and the second guide rod being fixed on the upper side of the third drive frame at a position directly opposite to the second sleeve.

12. The drive assembly according to claim 9, wherein the third guide mechanism includes a third guide rod and a third sleeve, the third sleeve being disposed on the lower side of the third drive frame, and the third guide rod being fixed to the upper side of the base at a position directly opposite to the third sleeve.

13. The drive assembly of claim 12, further comprising a housing, wherein the housing includes an outer shell and an inner shell located within the outer shell, wherein the inner shell is fixed to the second drive frame of the drive frame, and the outer shell is fixed above the base.

14. A camera module, characterized in that, include: One lens assembly; A photosensitive assembly, wherein the lens assembly is disposed in the photosensitive path of the photosensitive assembly; as well as The driving assembly as claimed in any one of claims 1 to 13, wherein the lens assembly is tractably disposed on the driving assembly, and the driving assembly drives the lens assembly to move in a specific direction.

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