Rotating mechanism and camera module thereof

Abstract

The application discloses a rotating mechanism and a camera module thereof, which are used for driving a light turning mechanism. The rotating mechanism comprises a movable carrier, a fixed base and a driving device. The movable carrier carries the light turning mechanism. The fixed base carries the movable carrier along a first rotating shaft direction. The driving device comprises at least one driving assembly. The driving assembly comprises an actuating unit and a transmission unit. The actuating unit is arranged on the side of the fixed base and is parallel to the first rotating shaft. The transmission unit is fixed to the movable carrier and is arranged opposite to the actuating unit. At least one actuating unit comprises a piezoelectric body and a transmission part. The transmission part extends from the piezoelectric body to the transmission unit. When the piezoelectric body is electrified, the transmission unit is pushed to drive the light turning mechanism to rotate around the first rotating shaft or the second rotating shaft. The first rotating shaft and the second rotating shaft are respectively orthogonal to the optical axis. Thus, the rotating mechanism can realize optical anti-shake by adjusting the rotation of the light turning element in two degrees of freedom, and the height of the camera module is reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of camera, in particular, a rotating mechanism and a camera module thereof. BACKGROUND

[0002] Recently, due to the development of mobile communication technology, portable terminals such as smart phones have become widespread, and camera modules have become smaller and lighter. Therefore, at least one camera module is configured on the portable terminal body. Customers have increasingly high design requirements for camera modules. Users not only require the camera modules configured on mobile terminals to have high capacity and high performance, but also require the development of camera modules that meet the standards of digital single-lens reflex cameras (DSLR). The development of camera modules needs to meet the trend of miniaturization and lightness while maintaining high performance and high capacity.

[0003] Among them, the periscopic camera module reflects the light beam incident from the vertical direction to the front end of the camera module by arranging a reflecting prism at the front end of the traditional prism, so that the light beam can be turned from the vertical direction to the horizontal direction perpendicular to the vertical direction, and then reach the photosensitive chip through the lens assembly and the color filter, thereby ensuring that the long focal length camera module can reduce the height of the long focal length camera module while meeting the long focal length shooting effect. The camera module can be installed in electronic equipment in a horizontal manner. Therefore, the periscopic camera module can greatly realize the requirements of terminal device miniaturization and optical zoom, and can change the longer lens structure by transforming the angle of incident light and reducing the module height.

[0004] The camera module realizes the optical auto focus function (hereinafter referred to as AF function, Auto Focus, auto focus) and the optical image stabilization function (hereinafter referred to as OIS function: Optical Image Stabilization, optical image stabilization) in the shooting process through the motor. The AF function refers to the function of adjusting the focus by moving the lens system linearly in the optical axis direction through the motor, focusing on the subject, and generating a clear image at the image sensor (CMOS, CCD, etc.) located behind the lens. The OIS function refers to the technology of compensating for image blur by motor anti-vibration control when the lens is shaken due to shaking. The image sensor captures the light entering through the lens system and converts it into an image signal.

[0005] Meanwhile, the shooting angle of the camera module is related to the focal length of the optical lens. The smaller the focal length of the optical lens, the larger the shooting angle, and the stronger the shooting ability of the camera module for the near scene. Correspondingly, the larger the focal length of the optical lens, the smaller the shooting angle, and the stronger the shooting ability of the camera module for the far scene. The long-focus lens has a large focal length, so it can shoot a longer distance, and thus can shoot at a very long distance. Therefore, the long-focus lens usually has a large size, and the large long-focus lens will cause the height size of the camera module to be large. When the camera module with the long-focus lens is arranged on the electronic device, the end surface of the long-focus lens will protrude from the surface of the electronic device, which not only affects the appearance of the electronic device, but also causes the long-focus lens to be easily worn or damaged due to contact with other objects when the electronic device is used. Furthermore, it is difficult to mount a suitable motor on the long-focus lens, which may cause the overall size to be too large. SUMMARY

[0006] An object of the present application is to provide a rotating mechanism and a camera module thereof, which adjusts the angle of the light turning element relative to the optical lens to achieve optical image stabilization of the camera module, thereby improving the imaging quality of the camera module.

[0007] Another object of the present application is to provide a rotating mechanism and a camera module thereof, which adjusts the angle of the light turning element in two degrees of freedom to achieve optical image stabilization of the optical lens along the normal direction of the optical axis, thereby reducing the height of the camera module.

[0008] Another object of the present application is to provide a rotating mechanism and a camera module thereof, which rotates the light turning element along the x-axis by the first driving assembly of the driving device to achieve optical image stabilization of the optical lens in the y-axis direction, and rotates the light turning element along the y-axis by the second driving assembly of the driving device to achieve optical image stabilization of the optical lens in the x-axis direction.

[0009] Another object of the present application is to provide a rotating mechanism and a camera module thereof, which respectively sets the actuating unit and the transmission unit of the driving device in the x-axis direction and the z-axis direction, effectively utilizes the space in the x-axis and z-axis directions, avoids occupying the space in the y-axis direction, and is beneficial to reduce the height requirement of the anti-shake motor of the camera module, thereby reducing the height of the camera module.

[0010] Another object of the present application is to provide a rotating mechanism and a camera module thereof, which has a more compact structure, reduces the size of the camera module carrying the anti-shake motor, and is easy to assemble.

[0011] To achieve the above object, the technical scheme adopted by the present application is as follows: a rotating mechanism for driving a light turning mechanism, comprising a movable carrier, a fixed base and a driving device, the movable carrier carrying the light turning mechanism, the fixed base carrying the movable carrier along a first rotation axis direction, the driving device comprising at least one driving assembly, the driving assembly comprising an actuating unit and a transmission unit, the actuating unit being arranged on the circumferential side of the fixed base and parallel to the first rotation axis, the transmission unit being fixed to the movable carrier and arranged opposite to the actuating unit, wherein the at least one actuating unit comprises a piezoelectric body and a transmission part, the transmission part extending from the piezoelectric body to the transmission unit, when the piezoelectric body is energized, the transmission unit is pushed to drive the light turning mechanism to rotate around the first rotation axis or the second rotation axis, the first rotation axis and the second rotation axis being respectively orthogonal to the optical axis.

[0012] As a preferred, the movable carrier comprises a first carrier and a second carrier, the first carrier carrying the second carrier along the first rotation axis direction, the second carrier carrying the light turning mechanism, the driving device comprising a first driving assembly and a second driving assembly, the first driving assembly driving the first carrier to rotate around the first rotation axis, the second driving assembly driving the second carrier to rotate around the second rotation axis.

[0013] As a preferred, the first driving assembly comprises a first actuating unit and a first transmission unit, the first transmission unit being fixed to the two sides of the first carrier along the second rotation axis, the first actuating unit being arranged opposite to the first transmission unit, the second driving assembly comprising a second actuating unit and a second transmission unit, the second transmission unit being fixed to the circumferential side of the second carrier along the optical axis direction, the second actuating unit and the second transmission unit being arranged opposite to each other, the first driving assembly and the second driving assembly being the same or different.

[0014] As a preferred, the first actuating unit and the second actuating unit are respectively attached to the circumferential side of the fixed base, the first transmission unit is arranged on the left and right sides of the light turning mechanism, and the second transmission unit is arranged on the rear side of the light turning mechanism.

[0015] As a preferred, the actuating unit further comprises a clamping sheet, the clamping sheet connecting the fixed base and the piezoelectric body, the transmission unit being a friction sheet, the clamping sheet elastically supporting the transmission part of the piezoelectric body to abut against the transmission unit, so that the transmission part of the piezoelectric body pushes the transmission unit to move.

[0016] As a preferred, the actuating unit is a coil, the transmission unit is a magnet, the coil and the magnet are oppositely arranged at intervals, when the coil is energized, the magnet is driven to move around the first rotation axis or the second rotation axis.

[0017] As a preferred, each of the driving assemblies further comprises at least one supporting mechanism and at least one guide slot, the first carrier and the second carrier and the fixed base form opposite surfaces therebetween, the at least one guide slot and the at least one supporting mechanism are arranged on the opposite surfaces, the supporting mechanism is movably engaged in the guide slot, so as to support the rotation of the first carrier relative to the second carrier and / or the fixed base.

[0018] As a preferred, the guide slot comprises a first guide slot and a second guide slot, the supporting mechanism comprises a first supporting mechanism and a second supporting mechanism, the first guide slot is symmetrically arranged on the opposite surfaces of the fixed base and the first carrier, the second guide slot is arranged on the opposite surfaces of the first carrier and the second carrier respectively, the first supporting mechanism is accommodated in the first guide slot, and the second supporting mechanism is accommodated in the second guide slot.

[0019] As a preferred, the first guide slot is in an arc structure and parallel to the X-Z plane, the first supporting mechanism is a ball, two first balls are arranged in each of the first guide slots, and the first balls are distributed at intervals.

[0020] As a preferred, the second guide slot is in an arc structure and parallel to the Y-Z plane, the second supporting mechanism is a ball, two second balls are arranged in each of the second guide slots, and the second balls are distributed at intervals.

[0021] As a preferred, the bending arc of the first guide slot is 45° to 55°, preferably, the bending arc of the first guide slot is 50°.

[0022] As a preferred, the bending arc of the second guide slot is 13° to 18°, preferably, the bending arc of the second guide slot is 15°.

[0023] As a preferred, the second supporting mechanism is a guide rod, the second guide slot is arranged on both sides of the second carrier, the second supporting mechanism extends from the side of the first carrier to the second guide slot, so that the second carrier rotates around the second supporting mechanism.

[0024] As a preferred, the first rotation axis is orthogonal to the plane where the first guide groove is located, the first guide groove is provided with a first upper track and a first lower track, the first upper track and the second lower track are oppositely arranged, and the first supporting mechanism is rollably accommodated between the first upper track and the first lower track.

[0025] As a preferred, the fixed base comprises a circuit board and a base, the first upper track of the first guide groove is symmetrically arranged on the outer side of the base, the circuit board covers the side wall of the base, the actuating units are sequentially attached to the circuit board, and the side wall of the base is provided with a plurality of openings, and the actuating units are accommodated in the openings.

[0026] As a preferred, the circuit board is a flexible circuit board, the first actuating unit is electrically connected to both sides of the circuit board, and the second actuating unit is electrically connected to the middle of the circuit board.

[0027] As a preferred, the first driving assembly drives the light turning mechanism to swing around the first rotation axis by an angle of -21° to +21°, and the second driving assembly drives the light turning mechanism to pitch around the second rotation axis by an angle of -8° to +3°.

[0028] As a preferred, the driving device further comprises a first sensing mechanism and a second sensing mechanism, the first sensing mechanism is used for sensing the swing angle of the first carrier, and the second sensing mechanism is used for sensing the pitch angle of the second carrier.

[0029] As a preferred, the first sensing mechanism comprises a first magnetic element and a first magnetic sensing element, the first magnetic element is fixed in the first carrier, the first magnetic sensing element is mounted on the fixed base, and the first magnetic element and the first magnetic sensing element are oppositely arranged with a spacing.

[0030] As a preferred, the second sensing mechanism comprises a second magnetic element and a second magnetic sensing element, the second magnetic element is fixed in the second carrier, the second magnetic sensing element is accommodated in the first carrier, and the second magnetic element and the second magnetic sensing element are oppositely arranged with a spacing.

[0031] As a preferred, the first sensing mechanism and / or the second sensing mechanism are arranged with a spacing from the driving assembly, the first magnetic sensing element and the second magnetic sensing element are respectively located on the base of the fixed base, and the first magnetic sensing element and the second magnetic sensing element are electrically connected to the circuit board.

[0032] A camera module comprising a rotating mechanism, a light turning mechanism, a lens assembly and a photosensitive assembly as described above, the lens assembly is located in the photosensitive path of the photosensitive assembly, the light turning mechanism is adjustable arranged in the rotating mechanism for light direction change. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 is a structural schematic diagram of a camera module according to a preferred embodiment of the present application;

[0034] Figure 2 is a perspective view of a light turning assembly according to the above preferred embodiment of the present application;

[0035] Figure 3 is an exploded view of a light turning assembly according to the above preferred embodiment of the present application;

[0036] Figure 4 is a perspective view of a rotating mechanism according to the above preferred embodiment of the present application;

[0037] Figure 5 is an exploded view of a rotating mechanism according to the above preferred embodiment of the present application;

[0038] Figure 6 is a top view of a rotating mechanism according to the above preferred embodiment of the present application;

[0039] Figure 7 is a bottom view of a first carrier according to the above preferred embodiment of the present application;

[0040] Figure 8 is a perspective view of a first carrier according to a first variant embodiment of the present application;

[0041] Figure 9 is a perspective view of a second carrier according to a first variant embodiment of the present application;

[0042] Figure 10 is an exploded view of a light turning assembly according to a second variant embodiment of the present application;

[0043] Figure 11 is a top view of a fixed base according to a second variant embodiment of the present application;

[0044] Figure 12 is a rear view of a fixed base according to a second variant embodiment of the present application;

[0045] Figure 13 is an exploded view of a rotating mechanism according to a second variant embodiment of the present application;

[0046] Figure 14is a top view of a rotating mechanism according to a second variant embodiment of the present application;

[0047] Figure 15 is a bottom view of a first carrier according to a second variant embodiment of the present application;

[0048] Figure 16 is a perspective structural view of a second carrier according to a second variant embodiment of the present application.

[0049] In the drawings: 1, light turning assembly; 10, light turning mechanism; 101, first light path; 102, second light path; 11, right-angle surface; 12, inclined surface; 2, rotating mechanism; 20, driving device; 201, first rotation shaft; 202, second rotation shaft; 21, first driving assembly; 211, piezoelectric body; 212, clamping piece; 213, first supporting mechanism; 214, first guide groove; 215, transmission part; 216, friction piece; 217, middle part; 218, end part; 22, second driving assembly; 221, coil; 222, magnet; 223, second supporting mechanism; 224, second guide groove; 30, movable carrier; 31, first carrier; 311, first movable carrier part; 312, base part; 316, first lower rail; 40, fixed base; 41, circuit board; 42, base; 421, opening; 422, first upper rail; 50, second carrier; 51, second movable carrier part; 53, supporting surface; 60, lens assembly; 70, light sensing assembly; 81, first sensing mechanism; 82, second sensing mechanism; 811, first magnetic element; 812, first magnetic sensing element; 821, second magnetic element; 822, second magnetic sensing element. DETAILED DESCRIPTION

[0050] Hereinafter, the present application will be further described in conjunction with specific embodiments. It should be noted that, under the premise of no conflict, each embodiment described below or each technical feature can be combined with any other embodiment or technical feature to form a new embodiment.

[0051] In the description of the present application, it should be noted that, for orientation words, such as terms "center", "transverse", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation and positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and cannot be understood as indicating or implying that the devices or elements referred to must have a specific orientation, be constructed and operated in a specific orientation, and cannot be understood as limiting the specific protection scope of the present application.

[0052] It should be noted that the terms "first", "second" and the like in the description and claims of this application are used for distinguishing between similar objects and are not necessarily used to describe a particular sequential or chronological order.

[0053] The terms "comprise", "comprising", "include", "including", "have", "having" and any variations thereof in the specification and claims of this application are intended to cover both the case where one or more steps or units are included in the process, method, system, product or apparatus and the case where one or more steps or units are not included in the process, method, system, product or apparatus.

[0054] It should be noted that the terms "substantially", "approximately" and similar terms as used in the present application are used as terms of approximation, not as terms of degree, and are intended to account for the inherent deviations in measurements or calculations that would be recognized by those of ordinary skill in the art.

[0055] In the description of the present application, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set", "install", "connect", "connect" should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be the communication between the two elements. For those of ordinary skill in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0056] As shown in Figure 1 and Figure 3 A camera module is shown, which includes a lens assembly 60, a photosensitive assembly 70 and a light turning assembly 1, the lens assembly 60 is located in the photosensitive path of the photosensitive assembly 70, the light turning assembly 1 is used for the transformation of light direction, the light turning assembly 1 includes a light turning mechanism 10 and a rotating mechanism 2, the light turning mechanism 10 is adjustably disposed in the rotating mechanism 2, the light turning mechanism 10 is used for turning the light 90° through the lens assembly 60 to be received by the photosensitive assembly 70 to form an image, the rotating mechanism 2 drives the light turning mechanism 10 to rotate around at least one rotation axis to compensate for the anti-shake displacement amount of the optical axis orthogonal surface of the lens assembly 60. Wherein, Figure 1 and Figure 2 The orthogonal coordinate system (X, Y, Z) shown in is applicable to all the drawings, the Z axis is the direction of the optical axis of the lens assembly 60, which is the front-back direction, the X axis and the Y axis orthogonal to the Z axis are taken as the optical axis orthogonal direction, the X axis is the left-right direction, and the Y axis is the up-down direction, the plane along the optical axis orthogonal is the common plane between the X axis and the Y axis, and it should be understood that this coordinate system is only exemplary and should not be interpreted as limiting.

[0057] In some embodiments, the light turning mechanism 10 is configured to make a 90° directional change of light rays, and includes two right-angle surfaces 11 and a reflective surface 12 (an inclined surface 12), each of the right-angle surfaces 11 forms a 45° angle with the reflective surface 12, the reflective surface 12 forms a first light path 101 and a second light path 102 which are perpendicular to each other, the lens assembly 60 and the photosensitive assembly 70 are arranged in the second light path 102, and light rays enter the first light path 101 and then enter the second light path 102 after being reflected by the reflective surface 12. For example, but not limited to, the light turning mechanism 10 can be implemented as a plane mirror or a prism. In particular, in the embodiments of the present application, the light turning mechanism 10 is implemented as a prism, in particular, the prism is a total reflection prism.

[0058] According to a first aspect of the present application, a rotating mechanism 2 is provided for driving the light turning mechanism 10 to rotate around a first rotation axis 201 (Y-axis) and / or a second rotation axis 202 (X-axis), the rotating mechanism 2 includes a movable carrier 30, a fixed base 40, and a driving device 20, the movable carrier 30 carries the light turning mechanism 10, the fixed base 40 carries the movable carrier 30 along the first rotation axis 201, and the driving device 20 includes at least one driving assembly, the at least one driving assembly includes at least one actuating unit and at least one transmission unit, the actuating unit is arranged on the side of the fixed base 40 and parallel to the first rotation axis 201, and the transmission unit is fixed to the movable carrier 30 and arranged opposite to the actuating unit, wherein the at least one actuating unit includes a piezoelectric body 211 and a transmission part 215, the transmission part 215 extends from the piezoelectric body 211 to the transmission unit, when the piezoelectric body 211 is energized, the transmission unit is pushed to drive the light turning mechanism 10 to rotate around the first rotation axis 201 or the second rotation axis 202, and the first rotation axis 201 and the second rotation axis 202 are perpendicular to the optical axis. Further, the movable carrier 30 is driven by the driving assembly to rotate around the first rotation axis 201 to realize X-axis anti-shake, and / or to rotate around the second rotation axis 202 to realize Y-axis anti-shake, so as to realize anti-shake correction of the lens assembly 60 along the perpendicular plane of the optical axis. In the present embodiment, the "side" refers to the side parallel to the Y-axis and not intersecting the Y-axis, by arranging the actuating unit and the transmission unit on the side, the space in the X-axis direction and the Z-axis direction of the camera module is effectively utilized, without increasing the height in the Y-axis direction, which helps to reduce the height of the camera module and facilitate installation.

[0059] In some embodiments, the driving device 20 further comprises at least one supporting mechanism and at least one guide slot, the at least one guide slot is opened between the movable carrier 30 and the fixed base 40, the supporting mechanism is movably engaged with the guide slot, so as to enable the movable carrier 30 to rotate along the first rotation axis 201 or the second rotation axis 202. In other words, the guide slot takes the first rotation axis 201 and / or the second rotation axis 202 as the central axis, the guide slot enables to guide the rotation direction of the light steering mechanism 10, when the piezoelectric body 211 is energized, the deformation of the piezoelectric body 211 pushes the transmission unit to drive the light steering mechanism 10 to rotate around the first rotation axis 201 and / or the second rotation axis 202.

[0060] In some embodiments, the movable carrier 30 comprises a first carrier 31 and a second carrier 50, the first carrier 31 carries the second carrier 50 along the direction of the first rotation axis 201, the second carrier 50 carries the light steering mechanism 10, the driving device 20 comprises a first driving assembly 21 and a second driving assembly 22, the first driving assembly 21 drives the first carrier 31 to rotate around the first rotation axis 201 to realize X-axis anti-shake, the second driving assembly 22 drives the second carrier 50 to rotate around the second rotation axis 202 to realize Y-axis anti-shake.

[0061] In some embodiments, the first driving assembly 21 comprises a first actuating unit and a first transmission unit, the first transmission unit is fixed to the two sides of the first carrier 31 along the second rotation axis 202, the first actuating unit is oppositely arranged with the first transmission unit, the second driving assembly 22 comprises a second actuating unit and a second transmission unit, the second transmission unit is fixed to the circumferential side of the second carrier 50 along the optical axis direction, the second actuating unit and the second transmission unit are oppositely arranged, the first driving assembly 21 and the second driving assembly 22 are the same or different. That is, the structure and driving mode of the two groups of driving assemblies can be the same or different, for example but not limited to, each of the actuating units comprises the piezoelectric body 211, the piezoelectric body 211 deforms when the current changes, pushing the transmission unit to move around the first rotation axis 201 or the second rotation axis 202, as shown in Figure 10 ; or in other words, one group of the driving assemblies comprises the piezoelectric body 211 and the transmission unit, and the other group of the driving assemblies comprises the coil 221 and the magnet 222, the coil 221 and the magnet 222 are oppositely arranged with a spacing, when the coil 221 is energized, the magnet 222 is driven to move around the first rotation axis 201 or the second rotation axis 202, as shown in Figure 3 .

[0062] In some embodiments, the actuating unit is also adapted to deform when the temperature or the current changes, and the transmission unit drives the first carrier 31 or the second carrier 50 to rotate with the deformation of the actuating unit.

[0063] In some embodiments, when the driving assembly is driven by the piezoelectric body 211, the actuating unit further comprises a clamping piece 212 connecting the fixed base 40 and the piezoelectric body 211, the transmission unit is a friction piece 216, and the clamping piece 212 elastically supports the transmission part 215 of the piezoelectric body 211 to abut against the transmission unit, so that the transmission part 215 of the piezoelectric body 211 drives the transmission unit by friction.

[0064] In some embodiments, the middle part 217 of the clamping piece 212 elastically protrudes from the end part 218 to the piezoelectric body 211, so that the transmission part 215 of the piezoelectric body 211 abuts against the transmission unit, the clamping piece 212 provides a pressure to the piezoelectric body 211, keeps the transmission part 215 close to the friction piece 216, so that the friction force is generated between the transmission part 215 and the friction piece 216, when the piezoelectric body 211 is connected to the power supply, the piezoelectric body 211 generates deformation under the action of electric charge, wherein the piezoelectric body 211 has piezoelectric properties after polarization, when the alternating electric field is added to the piezoelectric body 211, forced vibration is excited in the piezoelectric body 211 by the inverse piezoelectric effect, when the frequency of the external electric field is consistent with the natural frequency of the vibration of the piezoelectric body 211, the piezoelectric body 211 enters the mechanical resonance state and becomes a piezoelectric vibrator, the piezoelectric body 211 can vibrate in the natural mode, the piezoelectric body 211 is elongated or contracted by the change of the current, and then the transmission part 215 drives the friction piece 216 to step motion, and the carrier with the friction piece 216 is driven to rotate around the first rotation shaft 201 or the second rotation shaft 202.

[0065] In some embodiments, the first carrier 31 is arranged between the second carrier 50 and the fixed base 40 along the Y axis, and the first carrier 31 forms a relative surface with the second carrier 50 and the fixed base 40, respectively, and the at least one guide groove and the at least one supporting mechanism are arranged on the relative surface, so as to support the rotation of the first carrier 31 relative to the second carrier 50 and / or the fixed base 40. The first actuating unit and the second actuating unit are attached to the circumferential side of the fixed base 40, respectively, the first actuating unit and the first transmission unit are arranged in opposite radial directions, and the second actuating unit and the second transmission unit are arranged in opposite axial directions. By arranging the first driving assembly 21 symmetrically on the left and right sides of the light turning mechanism 10, and arranging the second driving assembly 22 on the rear side of the light turning mechanism 10, the space occupied by the driving device 20 in the Y axis bottom surface of the camera module is reduced, and the excess space of the light turning mechanism 10 in the Z axis and the X axis is reasonably utilized, thereby effectively reducing the height dimension of the periscopic camera module. Since the available space in the X axis and the Z axis direction is larger, the actuating unit of larger size can be accommodated, thereby providing larger driving force, so that the periscopic camera module is suitable for being applied to electronic devices pursuing thinness, and the advantages of the periscopic camera module with such structure are more obvious when the focal length of the lens assembly 60 is larger. Among them, opposite radial arrangement means that the first actuating unit and the first transmission unit are arranged in opposite directions along the X axis, opposite axial arrangement means that the second actuating unit and the second transmission unit are arranged in opposite directions along the Z axis, rear side means the opposite side of the light exit surface of the light turning mechanism 10, that is, the -Z axis, and left and right sides means +X axis and -X axis.

[0066] In some embodiments, the first actuating unit includes a piezoelectric body 211, a transmission part 215, and a clamping sheet 212, the first transmission unit is a friction sheet 216, the clamping sheet 212 connects the fixed base 40 and the piezoelectric body 211, the clamping sheet 212 elastically supports the transmission part 215 of the piezoelectric body 211 to abut against the friction sheet 216, the friction sheet 216 is fixed on the left and right sides of the first carrier 31, and the transmission part 215 extends from the piezoelectric body 211 to the friction sheet 216. When the piezoelectric body 211 is energized, the piezoelectric body 211 deforms and pushes the friction sheet 216 to move forward and backward through the transmission part 215, so that the first carrier 31 rotates around the Y axis, and X axis anti-shake is realized.

[0067] In some embodiments, the second actuating unit comprises a piezoelectric body 211, a transmission part 215, and a clamping piece 212, the second transmission unit is a friction sheet 216, the clamping piece 212 connects the fixed base 40 and the piezoelectric body 211, the clamping piece 212 elastically supports the transmission part 215 of the piezoelectric body 211 to abut against the friction sheet 216, the friction sheet 216 is fixed to the rear side of the second carrier 50, the transmission part 215 extends from the piezoelectric body 211 to the friction sheet 216, when the piezoelectric body 211 is energized, the piezoelectric body 211 deforms and pushes the friction sheet 216 to move up and down through the transmission part 215, so that the second carrier 50 rotates around the X axis, realizing Y-axis anti-shake.

[0068] In some embodiments, the piezoelectric body 211 can adopt a piezoelectric crystal, and can also adopt a piezoelectric polymer, for example but not limited to polyvinylidene fluoride and other organic piezoelectric materials represented by it.

[0069] In some embodiments, the first actuating unit is a coil 221, and the first transmission unit is a magnet 222, the magnet 222 is an arc-shaped structure, the N pole and the S pole of the magnet 222 are arranged adjacent along the Z axis, the magnet 222 is fixed to the left and right sides of the first carrier 31, the coil 221 is oppositely arranged with the magnet 222 at intervals, based on the interaction between the magnetic field generated by the magnet 222 and the current in the coil 221, a first magnetic field loop is formed, a Lorentz force is generated, the first carrier 31 with the magnet 222 is driven to rotate along the Y axis, thereby driving the light turning mechanism 10 to rotate along the Y axis, realizing X-axis anti-shake correction of the camera module, the direction of the Lorentz force is orthogonal to the direction of the magnetic field (X axis) and the direction of the current in the coil 221 (Z axis or Y axis) (Y axis or Z axis), since the N pole and the S pole of the magnet 222 are distributed in an arc shape along the Z axis, when the coil 221 is energized, the Lorentz force is converted into a torque for rotating the magnet 222 around the Y axis.

[0070] In some embodiments, the second actuating unit is a coil 221, and the second transmission unit is a magnet 222, the magnet 222 has an arc structure, and the N pole and the S pole of the magnet 222 are arranged adjacent along the Y axis. If the coil 221 is energized, a second magnetic field loop is formed based on the interaction between the magnetic field generated by the magnet 222 and the current in the coil 221, a Lorentz force is generated, the carrier with the magnet 222 is driven to rotate along the X axis, thereby driving the light turning mechanism 10 to rotate along the X axis, and Y-axis anti-shake correction of the camera module is realized. The direction of the Lorentz force is orthogonal to the direction of the magnetic field (Z axis) and the direction of the current in the coil 221 (X axis or Y axis) (Y axis or X axis). Since the N pole and the S pole of the magnet 222 are arranged in an arc along the Y axis, when the coil 221 is energized, the Lorentz force is converted into a torque for rotating the magnet 222 around the X axis.

[0071] In some embodiments, a spacing is formed between the coil 221 and the magnet 222, the spacing is 0.05-0.5 mm, preferably, the spacing is 0.1-0.3 mm, and preferably, the spacing is 0.1 mm. Therefore, the magnet 222 does not contact the coil 221, interference is avoided, and good magnetic induction can be generated.

[0072] In some embodiments, the guide slots and the supporting mechanisms are two pairs, the supporting mechanisms can be balls, at least one ball is arranged in each of the guide slots, the guide slots include a first guide slot 214 and a second guide slot 224, the supporting mechanisms include a first supporting mechanism 213 and a second supporting mechanism 223, the first guide slot 214 is symmetrically arranged on the opposite surfaces of the fixed base 40 and the first carrier 31, the second guide slot 224 is arranged on the opposite surfaces of the first carrier 31 and the second carrier 50 respectively, each of the supporting mechanisms is accommodated in each of the guide slots, the first supporting mechanism 213 is accommodated in the first guide slot 214, so that the first supporting mechanism 213 can rollably support the first carrier 31 to rotate around the Y axis, the second supporting mechanism 223 is accommodated in the second guide slot 224, so that the second supporting mechanism 223 can rollably support the second carrier 50 to rotate around the X axis. In other words, the first supporting mechanism 213 is engaged in the first guide slot 214, the second supporting mechanism 223 is engaged in the second guide slot 224, the first guide slot 214 takes the first rotation axis 201 as the central axis, the second guide slot 224 takes the second rotation axis 202 as the central axis, so that the light turning mechanism 10 can be selectively rotated along the first guide slot 214 or the second guide slot 224. Therefore, through the arrangement of the first guide slot 214 and the first supporting mechanism 213 between the first carrier 31 and the fixed base 40, when X-axis optical image stabilization is performed, the first supporting mechanism 213 always maintains dynamic support for the first carrier 31 during the rotation of the first carrier 31 around the Y axis relative to the fixed base 40, so that the first carrier 31 smoothly deviates and rotates, ensuring the accuracy of X-axis image stabilization compensation displacement, at the same time, through the arrangement of the second guide slot 224 and the second supporting mechanism 223 between the second carrier 50 and the first carrier 31, when Y-axis optical image stabilization is performed, the second supporting mechanism 223 always maintains dynamic support for the second carrier 50 during the rotation of the second carrier 50 around the X axis relative to the first carrier 31, so that the second carrier 50 smoothly tilts and rotates, ensuring the accuracy of Y-axis image stabilization compensation displacement.

[0073] In some embodiments, the balls can be partially or entirely embedded in the guide slots, the balls can not be completely fixed in the guide slots, the balls can be partially inserted into the guide slots and move in a rolling manner, or the balls can be fixed in the guide slots and move in a sliding manner.

[0074] In some embodiments, the first guide groove 214 is arc-shaped and parallel to the plane formed by the X-axis and the Z-axis, and two first guide grooves 214 are arranged in a concentric manner on the opposite surfaces of the fixed base 40 and the first carrier 31. The width (X-axis direction) of the first guide groove 214 is matched with the first supporting mechanism 213, and the length (Z-axis direction) of the first guide groove 214 can be extended along the Z-axis direction according to the requirements of the camera module, so as to allow the first supporting mechanism 213 to roll or slide in the first guide groove 214, reduce the friction, and make the first carrier 31 more flexible and accurate in rotating around the Y-axis, that is, the length of the first guide groove 214 along the Z-axis direction is greater than the length along the X-axis. When the first driving assembly 21 generates a torque around the Y-axis direction on the first carrier 31, the first carrier 31 rotates along the first guide groove 214, and the movement of the first supporting mechanism 213 along the Y-axis direction is limited.

[0075] In some embodiments, the second guide groove 224 is arc-shaped and parallel to the plane formed by the Y-axis and the Z-axis, and two second guide grooves 224 are arranged in parallel on the opposite surfaces of the first carrier 31 and the second carrier 50. The width (X-axis direction) of the second guide groove 224 is matched with the second supporting mechanism 223, and the length (Z-axis direction) of the second guide groove 224 can be extended along the Z-axis direction according to the requirements of the camera module, so as to allow the second supporting mechanism 223 to roll or slide in the second guide groove 224, reduce the friction, and make the second carrier 50 more flexible and accurate in rotating around the X-axis, that is, the inclination height of the second guide groove 224 along the plane of the Z-axis and the Y-axis is greater than the length along the X-axis. When the second driving assembly 22 generates a torque around the X-axis direction on the second carrier 50, the second carrier 50 rotates along the second guide groove 224, and the movement of the second supporting mechanism 223 along the X-axis direction is limited, as shown in Figure 8

[0076] In some embodiments, two first balls are arranged in each first guide groove 214, and the first balls are arranged in a spaced manner. Two second balls are arranged in each second guide groove 224, and the second balls are arranged in a spaced manner. The width of the first guide groove 214 is matched with the first balls, and the width of the second guide groove 224 is matched with the second balls. The number of the first balls and the second balls should not be interpreted as limiting, and the number of the first balls can be more than or less than 2, and the number of the second balls can also be more than or less than 2. The materials of the first balls and the second balls can be the same or different.

[0077] ​In some embodiments, the second supporting mechanism 223 can also be a guide rod 223, the second guide slot 224 is a guide rod slot 224, which is opened in the sidewall of the second carrier 50 but not through the sidewall, avoiding interference with the light steering mechanism 10, the second supporting mechanism 223 is engaged with the second guide slot 224 from the side of the first carrier 31, so that the second carrier 50 rotates along the second supporting mechanism 223 in the X direction, by utilizing the space in the X axis direction, the space in the X axis direction is expanded, not only reducing the space occupation in the Y axis direction, but also being beneficial to expand the arc length of the first guide slot 214, further increasing the anti-shake yaw angle, as shown in Figure 4 .

[0078] That is, the guide rod slot 224 is opened on the left and right sides of the second carrier 50, the guide rod 223 extends from the side of the first carrier 31 to the guide rod slot 224, and the guide rod 223 does not penetrate the light steering mechanism 10, a lubricant is coated between the guide rod 223 and the guide rod slot 224 to reduce the friction between the guide rod 223 and the guide rod slot 224. Thus, by replacing the ball structure with the guide rod 223, the height can be further reduced, the X axis direction space can be reasonably utilized, the arc of the first guide slot 214 can be expanded, and the Y axis direction space can be further saved.

[0079] In some embodiments, the bending arc of the first guide slot 214 is about 45° to 55°, so that the yaw angle of the movable carrier 30 driving the light steering mechanism 10 around the first rotation axis 201 is about ±21°. Preferably, the bending arc of the first guide slot 214 is about 50°, which meets the requirement of X axis large-angle anti-shake correction.

[0080] In some embodiments, when the second guide slot 224 is not a guide rod slot, the bending arc of the second guide slot 224 is about 13° to 18°, so that the pitch angle of the movable carrier 30 driving the light steering mechanism 10 around the second rotation axis 202 is about -8° to +3°, as shown in Figure 8 . Preferably, the bending arc of the second guide slot 224 is about 15°, which meets the requirement of Y axis large-angle anti-shake correction.

[0081] In some embodiments, the first guide slots 214 are respectively concavely formed on the opposite left and right sides of the fixed base 40 and the first carrier 31, and the first supporting mechanisms 213 are rollably supported on the left and right sides of the first carrier 31 and the fixed base 40, thereby helping to maintain the stability of the first carrier 31. Each of the first guide slots 214 is oppositely arranged with each of the first transmission units along the Y-axis direction. The first guide slots 214 are located on the outer side of the fixed base 40, and make full use of the outer side space of the fixed base 40 and the first carrier 31, so that the two first guide slots 214 have a longer arc size along the Z-axis direction. When the first carrier 31 is guided around the Y-axis by the first guide slots 214 and the first supporting mechanisms 213, a larger yaw angle can be provided for the first carrier 31, thereby facilitating the realization of a larger angle of X-axis optical image stabilization, as shown in Figure 11 . In other words, when the first guide slots 214 are outwardly arranged adjacent to the first transmission units, the first carrier 31 is easier to drive, the circle in which the two first guide slots 214 are located is larger, and the arc of the first guide slots 214 can also be longer, as shown in Figure 6 . The first guide slots 214 are located directly below the first transmission units, and the fixed base 40 increases the extension space in the X-axis direction, so that the first guide slots 214 have a longer arc size along the Z-axis direction, thereby providing a larger yaw angle for the first carrier 31, thereby facilitating the realization of a larger angle of X-axis optical image stabilization.

[0082] In some embodiments, the first rotation axis 201 is orthogonal to the plane in which the first guide slots 214 are located. The first guide slots 214 are provided with a first upper track 422 and a first lower track 316. The first upper track 422 and the second lower track 52 are oppositely arranged. The first upper track 422 is formed on the upper surface of the fixed base 40 along the X-Z plane (the plane formed by the X-axis and the Z-axis). The first lower track 316 is formed on the lower surface of the first carrier 31 along the X-Z plane. The movement trajectory of the first supporting mechanism 213 is limited between the first upper track 422 and the first lower track 316, thereby helping to guide the first carrier 31 during rotation along the Y-axis, and replacing sliding friction with rolling friction through the balls, further reducing the friction between the first carrier 31 and the fixed base 40, effectively improving the stability of the movement of the first carrier 31 during X-axis optical image stabilization, and improving the imaging quality, as shown in Figure 6 and Figure 7 .

[0083] In some embodiments, the light turning mechanism 10, the second carrier 50, the first carrier 31 and the fixed base 40 are stacked along the Y-axis direction, the fixed base 40 carries the first carrier 31, the first carrier 31 carries the second carrier 50, and the second carrier 50 carries the light turning mechanism 10.

[0084] In some embodiments, a gap is provided in each of the first guide grooves 214, which divides each of the first guide grooves 214 into two parts, so as to accommodate the first rolling balls in the first guide grooves 214 at intervals. If more first rolling balls are used, the first guide grooves 214 need to be larger in size, and if only one first rolling ball is used, the first carrier 31 will shake. In this case, the gap can be provided in the first upper track 422 and / or the first lower track 316, so as to accommodate the first rolling balls in the first guide grooves 214 at intervals, so as to maintain the spacing between the first rolling balls and help stabilize the rolling. As shown in the figure, the gap is provided in the middle of the first lower track 316, and the first rolling balls are respectively maintained in each of the gap regions. Figure 7

[0085] In some embodiments, the first carrier 31 includes a pair of first dynamic load portions 311 and a base portion 312, the first dynamic load portions 311 are respectively located outside the base portion 312, and the first transmission units are respectively fixed to each of the first dynamic load portions 311.

[0086] In some embodiments, the second carrier 50 includes a second dynamic load portion 51 and a support surface 53, the inclined surface 12 of the light turning mechanism 10 is attached to the support surface 53, the second dynamic load portion 51 is located at the back side of the second carrier 50, and the second transmission unit is fixed to the second dynamic load portion 51. In this case, the inclined surface 12 of the light turning mechanism 10 is bonded together with the support surface 53 by glue, which can effectively prevent the light turning mechanism 10 from sliding downward, so as to stably maintain the light turning mechanism 10 in the second carrier 50.

[0087] ​In some embodiments, the fixed base 40 comprises a circuit board 41 and a base 42, the first upper track 422 of the first guide slot 214 is symmetrically formed on the outer side of the base 42, the circuit board 41 is attached to the base 42, the first actuating unit and the second actuating unit are electrically connected to the circuit board 41, the sidewall of the base 42 is provided with a plurality of openings 421, and the first actuating unit and the second actuating unit are accommodated in the openings 421. When the X-axis anti-shake correction is performed, the first actuating unit is powered through the circuit board 41, and the first driving assembly 21 drives the first carrier 31 to rotate around the Y-axis; when the Y-axis anti-shake correction is performed, the second actuating unit is powered through the circuit board 41, and the second driving assembly 22 drives the second magnet 222 to rotate around the X-axis, thereby driving the second carrier 50 to rotate. Since only the second carrier 50 and the light turning mechanism 10 therein need to be driven to rotate, the Y-axis anti-shake stroke only needs a relatively small driving force to be achieved, without the need to drive the entire movable carrier 30 to pitch, thereby reducing power consumption, and the volume and number of the second actuating unit can be smaller than those of the first actuating unit. Therefore, the number of the second actuating unit is one, and the number of the first actuating unit is two. That is, by separately controlling the Y-axis anti-shake stroke and the X-axis anti-shake stroke, the burden of each component can be reduced, the entire movable carrier 30 does not need to be moved in the Y-axis anti-shake stroke, and the Y-axis large-angle anti-shake stroke can be effectively increased under the condition of a certain driving force.

[0088] In some embodiments, the circuit board 41 is an FPC (flexible circuit board 41), the first actuating unit and the second actuating unit are fixed to the circumferential side of the fixed base 40, so that assembly is more convenient, without the need to arrange the actuating unit on the bottom surface, thereby saving the bottom surface space. Meanwhile, the first guide slot 214 and the first supporting mechanism 213 are arranged on the base 42 of the fixed base 40, assembly is simple, the movable carrier 30 can be directly stacked on the base 42, assembly difficulty is reduced, and production efficiency is improved.

[0089] In some embodiments, the light turning assembly 1 further comprises a housing 3, and the light turning mechanism 10 and the rotating mechanism 2 are accommodated in the housing 3.

[0090] In some embodiments, the driving device 20 further comprises a first sensing mechanism 81 and a second sensing mechanism 82, the first sensing mechanism 81 is used for sensing the rotation angle of the first carrier 31, thereby controlling the yaw angle of the light turning mechanism 10, and the second sensing mechanism 82 is used for sensing the rotation angle of the second carrier 50, thereby controlling the pitch angle of the light turning mechanism 10.

[0091] In some embodiments, the first sensing mechanism 81 comprises a first magnetic element 811 fixed in the first carrier 31 and a first magnetic sensing element 812 mounted on the fixed base 40. The first magnetic element 811 and the first magnetic sensing element 812 are oppositely arranged at intervals to ensure that the sensitivity of the first magnetic sensing element 812 reaches the highest. The first magnetic sensing element 812 can sense the magnetic field change applied by the first magnetic element 811, and further detect the roll angle of the first carrier 31.

[0092] In some embodiments, the second sensing mechanism 82 comprises a second magnetic element 821 fixed in the second carrier 50 and a second magnetic sensing element 822 mounted on the first carrier 31. The second magnetic element 821 and the second magnetic sensing element 822 are oppositely arranged at intervals to ensure that the sensitivity of the second magnetic sensing element 822 reaches the highest. The second magnetic sensing element 822 can sense the magnetic field change applied by the second magnetic element 821, and further detect the pitch angle of the second carrier 50.

[0093] In some embodiments, when the driving assembly is a coil 221 and a magnet 222, no additional magnetic element is needed to provide a magnetic field. The magnetic sensing element can be mounted at the center of the coil 221 to eliminate the influence of other magnets 222 or magnetic elements on the magnetic sensing element, as shown in Figure 5 In some embodiments, when the driving assembly is a piezoelectric body 211, a magnetic element is needed to provide a magnetic field, as shown in Figures 12-16

[0094] In some embodiments, the first magnetic sensing element 812 and the second magnetic sensing element 822 can be IC, Hall device or other position sensing devices. The first magnetic element 811 and the second magnetic element 821 are magnets to generate a magnetic field.

[0095] In some embodiments, when the driving assembly is a piezoelectric body 211, the first sensing mechanism 81 and / or the second sensing mechanism 82 are arranged at intervals from the driving assembly to avoid electromagnetic interference between the magnetic sensing element and the piezoelectric body 211. The circuit board 41 is attached to the side wall and the bottom surface of the fixed base 40. The first magnetic sensing element 812 and the second magnetic sensing element 822 are respectively located in the base 42 of the fixed base 40, which not only avoids interference, but also facilitates the electrical connection of the first magnetic sensing element 812 and the second magnetic sensing element 822 to the circuit board 41. Therefore, the second magnetic sensing element 822 can be oppositely arranged with the second magnetic element 821 in the second carrier 50 by hollowing out the first carrier 31, as shown in Figure 13 ​​

[0096] In some embodiments, the camera module further comprises an assembly, the light turning component 1, the lens assembly 60 and the photosensitive assembly 70 are accommodated inside the assembly, the assembly has a window corresponding to the first light path 101. For example, in this embodiment of the present application, when the light turning mechanism 10 is implemented as a prism, during the image acquisition process of the periscopic camera module, the light reflected by the acquisition object passes through the window of the assembly to the light turning mechanism 10, is incident on one of the right-angle surfaces 11 of the light turning mechanism 10, enters the inside of the light turning mechanism 10, is reflected by the inclined surface 12 of the light turning mechanism 10, is emitted by the other right-angle surface 11 of the light turning mechanism 10, reaches the lens assembly 60, further, the light is refracted by the lens assembly 60 and filtered by the optical filter of the photosensitive assembly 70 to reach the photosensitive chip of the photosensitive assembly 70, further, the photosensitive chip converts the light signal into an electric signal through the photosensitive effect, transmits the electric signal to the connected wiring board, and then transmits the electric signal to the electronic device through the wiring board, so as to realize the image acquisition and the image reproduction through the electronic device.

[0097] In some embodiments, the camera module further comprises a driving element, the lens assembly 60 is arranged in the driving element, so as to drive the lens assembly 60 to move back and forth along the optical axis direction through the driving element to realize the automatic focusing, while keeping the lens assembly 60 in the photosensitive path of the photosensitive assembly 70. For example, but not limited to, the driving element can be implemented as a voice coil motor or a piezoelectric motor.

[0098] The above describes the basic principles, main features and advantages of the present application. It should be understood by those skilled in the art that the present application is not limited to the above embodiments, the above embodiments and the description in the specification are only the principles of the present application, and various changes and improvements can be made without departing from the spirit and scope of the present application, and these changes and improvements all fall within the scope of the claimed present application. The scope of protection of the present application is defined by the appended claims and their equivalents.

Claims

1. A rotating mechanism for driving a light steering mechanism, characterized by, The application relates to a light steering device, comprising: a movable carrier carrying a light steering mechanism; a fixed base carrying the movable carrier along a first rotation axis direction; a driving device comprising at least one driving assembly, the driving assembly comprising an actuating unit and a transmission unit, the actuating unit being arranged on the circumferential side of the fixed base, and the transmission unit being fixed to the movable carrier and arranged opposite to the actuating unit, wherein the actuating unit comprises a piezoelectric body and a transmission part, the transmission part extending from the piezoelectric body to the transmission unit, when the piezoelectric body is energized, the transmission unit is driven to rotate the light steering mechanism around the first rotation axis or a second rotation axis, the first rotation axis and the second rotation axis being perpendicular to the optical axis.

2. The swivel mechanism of claim 1, wherein The movable carrier comprises a first carrier and a second carrier, the first carrier carrying the second carrier along the first rotation axis direction, and the second carrier carrying the light steering mechanism, the driving device comprising a first driving assembly and a second driving assembly, the first driving assembly driving the first carrier to rotate around the first rotation axis, and the second driving assembly driving the second carrier to rotate around the second rotation axis.

3. The swivel mechanism of claim 2, wherein, The first driving assembly comprises a first actuating unit and a first transmission unit, the first transmission unit being fixed to the two sides of the first carrier along the second rotation axis, and the first actuating unit being arranged opposite to the first transmission unit, the second driving assembly comprising a second actuating unit and a second transmission unit, the second transmission unit being fixed to the circumferential side of the second carrier along the optical axis direction, and the second actuating unit and the second transmission unit being arranged opposite to each other, the first driving assembly and the second driving assembly being the same or different.

4. The swivel mechanism of claim 3, wherein, The first actuating unit and the second actuating unit are respectively attached to the circumferential side of the fixed base, the first transmission unit is arranged on the left and right sides of the light steering mechanism, and the second transmission unit is arranged on the rear side of the light steering mechanism.

5. The swivel mechanism of claim 4, wherein, The actuating unit further comprises a clamping sheet, the clamping sheet connecting the fixed base and the piezoelectric body, the transmission unit being a friction sheet, and the clamping sheet elastically supporting the transmission part of the piezoelectric body to abut against the transmission unit, so that the transmission part of the piezoelectric body drives the transmission unit to move.

6. The swivel mechanism of claim 5, wherein, The actuating unit is a coil, and the transmission unit is a magnet, the coil and the magnet being arranged opposite to each other with a spacing, when the coil is energized, the magnet is driven to move around the first rotation axis or the second rotation axis.

7. A swivel mechanism according to any one of claims 3-6, characterized in that Each driving assembly further comprises at least one supporting mechanism and at least one guide groove, the first carrier and the second carrier and the fixed base forming opposite surfaces therebetween, the at least one guide groove and the at least one supporting mechanism being arranged on the opposite surfaces, the supporting mechanism being movably engaged in the guide groove, so as to support the rotation of the first carrier relative to the second carrier and / or the fixed base.

8. The swivel mechanism of claim 7, wherein, The guide slots include first guide slots and second guide slots, the supporting mechanisms include first supporting mechanisms and second supporting mechanisms, the first guide slots are symmetrically arranged on opposite surfaces of the fixed base and the first carrier, the second guide slots are respectively arranged on opposite surfaces of the first carrier and the second carrier, the first supporting mechanisms are accommodated in the first guide slots, and the second supporting mechanisms are accommodated in the second guide slots.

9. The swivel mechanism of claim 8, wherein, The first guide slots are in arc structures and parallel to the X-Z plane, the first supporting mechanisms are balls, two first balls are arranged in each first guide slot, and the first balls are distributed at intervals.

10. The swivel mechanism of claim 8, wherein, The second guide slots are in arc structures and parallel to the Y-Z plane, the second supporting mechanisms are balls, two second balls are arranged in each second guide slot, and the second balls are distributed at intervals.

11. The swivel mechanism of claim 8, wherein, The first guide slots have a bending arc of 45° to 55°.

12. The swivel mechanism of claim 8, wherein, The first guide slots have a bending arc of 50°.

13. The swivel mechanism of claim 8, wherein, The second guide slots have a bending arc of 13° to 18°.

14. The swivel mechanism of claim 8, wherein, The second guide slots have a bending arc of 15°.

15. The swivel mechanism of claim 8, wherein, The second supporting mechanisms are guide rods, the second guide slots are arranged on two sides of the second carrier, the second supporting mechanisms extend from the side of the first carrier to the second guide slots, and the second carrier rotates around the second supporting mechanisms.

16. The swivel mechanism of claim 8, wherein, The first rotation axis is perpendicular to the plane where the first guide slots are located, the first guide slots are provided with first upper tracks and first lower tracks, the first upper tracks and the first lower tracks are oppositely arranged, and the first supporting mechanisms are rollably accommodated between the first upper tracks and the first lower tracks.

17. The swivel mechanism of claim 16, wherein, The fixed base includes a circuit board and a base, the first upper tracks of the first guide slots are symmetrically arranged on the outer side of the base, the circuit board is attached to the side wall and the bottom surface of the base, and the actuating units are sequentially electrically connected to the circuit board.

18. The swivel mechanism of claim 17, wherein, The circuit board is a flexible circuit board, the first actuating units are electrically connected to the two sides of the circuit board, and the second actuating units are electrically connected to the middle of the circuit board.

19. The swivel mechanism of claim 7, wherein, The deflection angle of the light turning mechanism around the first rotation axis driven by the first driving assembly is -21° to +21°, and the pitch angle of the light turning mechanism around the second rotation axis driven by the second driving assembly is -8° to +3°.

20. The swivel mechanism of claim 17, wherein, The driving device further includes first sensing mechanisms and second sensing mechanisms, the first sensing mechanisms are used for sensing the deflection angle of the first carrier, and the second sensing mechanisms are used for sensing the pitch angle of the second carrier.

21. The swivel mechanism of claim 20, wherein, The first sensing mechanisms include first magnetic elements and first magnetic sensing elements, the first magnetic elements are fixed in the first carrier, the first magnetic sensing elements are mounted on the fixed base, and the first magnetic elements and the first magnetic sensing elements are oppositely arranged at intervals.

22. The swivel mechanism of claim 21, wherein, The second sensing mechanisms include second magnetic elements and second magnetic sensing elements, the second magnetic elements are fixed in the second carrier, the second magnetic sensing elements are accommodated in the first carrier, and the second magnetic elements and the second magnetic sensing elements are oppositely arranged at intervals.

23. The swivel mechanism of claim 22, wherein, The first sensing mechanism and / or the second sensing mechanism are arranged apart from the driving assembly, the first magnetic sensing element and the second magnetic sensing element are respectively arranged on the base of the fixed base, and the first magnetic sensing element and the second magnetic sensing element are electrically connected to the circuit board.

24. A camera module, comprising: Comprise: A light turning mechanism for turning the direction of light rays; A lens assembly located in the light sensing path of a light sensing assembly; The turning mechanism of any one of claims 1-23, wherein the light turning mechanism is adjustably disposed in the turning mechanism.

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