CN115695953A - Driving device and electronic equipment thereof - Google Patents

Abstract

The invention discloses a driving device and electronic equipment thereof, which are used for driving a light steering mechanism and comprise at least one group of coils, at least one group of magnets, at least one guide groove and at least one supporting mechanism, wherein the coils are arranged on the peripheral side of the light steering mechanism and are parallel to a first rotating shaft, each group of magnets and each group of coils are oppositely arranged and can drive the light steering mechanism to rotate, the supporting mechanism is movably connected with the guide groove, the guide groove takes the first rotating shaft and/or a second rotating shaft as a central shaft and can guide the rotating direction of the light steering mechanism, and when the coils are electrified, the magnets are driven to drive the light steering mechanism to rotate around the first rotating shaft and/or around the second rotating shaft. Therefore, the optical anti-shake of the optical lens along the direction of the optical axis orthogonal surface is realized by adjusting the rotation of the light steering mechanism in two degrees of freedom, and the height of the camera module is reduced.

Description

Driving device and electronic equipment thereof

Technical Field

The invention relates to the field of camera shooting, in particular to a driving device and electronic equipment thereof.

Background

Recently, as mobile terminals such as smart phones, which have become widespread due to the development of mobile communication technology, smaller and lighter camera modules have appeared, and therefore at least one or more camera modules are arranged on a mobile terminal body. The demand for designing a camera module by customers is increasing day by day, and users not only require that a camera module configured on a mobile terminal has the characteristics of high capacity and high performance, but also require to develop a camera module meeting the standard of a digital still camera (DSLR), and the development of the camera module needs to meet the development trend of miniaturization and lightness while maintaining high performance and high capacity.

Wherein periscopic camera module is through the mode of settling the reflection prism at the front end of traditional prism, will reflect from the light beam of vertical direction incidence camera module front end, make the light beam can be followed vertical direction and turned to vertical direction mutually perpendicular's horizontal direction, reachs the sensitization chip behind rethread camera lens subassembly and the color filter, and then guarantee long focus camera module reduces long focus camera module's height when satisfying long focus shooting effect, can install the horizontal mode of camera module in electronic equipment. Therefore, the periscopic camera module can realize the requirements of terminal equipment miniaturization and optical zooming to a great extent, reasonably changes a longer lens structure through converting the angle of incident light, and reduces the height of the module.

The camera module realizes an Optical Auto Focus function (hereinafter referred to as an AF function) and an Optical anti-shake function (hereinafter referred to as an OIS function) through a motor during shooting, wherein the AF function and the OIS function are the Optical Image Stabilization functions. The AF function refers to a function of focusing an object by linearly moving a lens system in an optical axis direction by a motor to adjust a focus to produce a sharp image at an image sensor (CMOS, CCD, etc.) located at the rear of the lens. The OIS function is a technique for compensating for image blur by motor anti-shake control when a lens is shaken due to shake, and an image sensor captures an image of light incident through a lens system and converts the image into an image signal.

Simultaneously, the shooting angle of the module of making a video recording is relevant with optical lens's focal length, and the less angle of shooting that optical lens's focal length is big more, and the module of making a video recording is just stronger to the shooting ability of near scenery this moment, and correspondingly, the more big angle of shooting that optical lens's focal length is little more, and the shooting ability of the module of making a video recording to distant scenery is just stronger this moment. The telephoto lens has a larger focal length, so that the photographing distance can be longer, and thus the photographing can be performed at a longer distance, so that the body shape of the telephoto lens is usually larger, and the height of the camera module is larger due to the substantially-shaped telephoto lens. Further, it is difficult to mount an appropriate motor on the telephoto lens, and the entire size may be excessively large.

Disclosure of Invention

An object of the present invention is to provide a driving device and an electronic apparatus thereof, which can prevent optical shake of an optical lens in a direction perpendicular to an optical axis by adjusting rotation of a light steering mechanism in two degrees of freedom, and reduce the height of an image pickup module.

Another object of the present invention is to provide a driving device and an electronic apparatus thereof, which can prevent the optical lens from shaking in the y-axis direction by rotating the light steering mechanism along the x-axis by the first driving component of the driving device, and prevent the optical lens from shaking in the x-axis direction by rotating the light steering mechanism along the y-axis by the second driving component of the driving device.

Another object of the present invention is to provide a driving device and an electronic apparatus thereof, wherein the coil and the magnet of the driving device are respectively disposed in the x-axis direction and the z-axis direction, so as to effectively utilize the space in the x-axis direction and the z-axis direction, avoid occupying the space in the y-axis direction, facilitate reducing the requirement for the height of the anti-shake motor of the camera module, and reduce the height of the camera module.

Another objective of the present invention is to provide a driving device and an electronic apparatus thereof, which have a more compact structure, a reduced size of a camera module with an anti-shake motor, and a convenient assembly.

In order to achieve the purpose, the invention adopts the technical scheme that: the utility model provides a drive arrangement for drive light steering mechanism, includes at least a set of coil, at least a set of magnetite, an at least guide way and an at least supporting mechanism, the coil set up in light steering mechanism's week side and be on a parallel with first rotation axis, each group the magnetite with each group coil subtend sets up and can drive light steering mechanism rotates, supporting mechanism movably joint in the guide way, the guide way uses first rotation axis and/or second rotation axis as the center pin, at least a guide way quadrature is in first rotation axis or second rotation axis, the guide way can guide light steering mechanism's direction of rotation, works as when the coil circular telegram, can drive the magnetite drives light steering mechanism centers on first rotation axis rotates and/or centers on the second rotation axis rotates.

Preferably, the at least one set of coils includes at least one first coil and at least one second coil, the at least one magnet includes at least one first magnet and at least one second magnet, the first coil and the first magnet are disposed in the direction of the second rotation axis, the first coil and the first magnet form a first magnetic field loop, so as to drive the light steering mechanism to rotate along the first rotation axis, the second coil and the second magnet are disposed in the direction of the optical axis, the second coil and the second magnet form a second magnetic field loop, so as to drive the light steering mechanism to rotate along the second rotation axis.

Preferably, the first coil and the first magnet are symmetrically provided on both left and right sides of the optical steering mechanism in a second rotation axis direction, and the second coil and the second magnet are provided on a rear side of the optical steering mechanism in an optical axis direction.

Preferably, the guide groove includes a first guide groove and a second guide groove, and the support mechanism includes a first support mechanism and a second support mechanism, the first support mechanism is engaged in the first guide groove, and the second support mechanism is engaged in the second guide groove, the first guide groove is centered on the first rotation axis, and the second guide groove is centered on the second rotation axis, so that the light redirecting mechanism can be selectively rotated along the first guide groove or the second guide groove.

Preferably, the first guide grooves are arc-shaped and parallel to the X-Z plane, the first supporting mechanisms are balls, two first balls are arranged in each first guide groove, and the first balls are distributed at intervals.

Preferably, the second guide grooves are arc-shaped and parallel to the Y-Z plane, the second supporting mechanism is a ball, and two second balls are disposed in each second guide groove and are spaced apart from each other.

Preferably, the curvature of the first guide groove is 45 ° to 55 °, the curvature of the second guide groove is 13 ° to 18 °, and preferably, the curvature of the first guide groove is 50 ° and the curvature of the second guide groove is 15 °.

Preferably, the first coil and the first magnet drive the light steering mechanism to have a yaw angle of-21 ° to +21 ° around the first rotation axis, and the second coil and the second magnet drive the light steering mechanism to have a pitch angle of-8 ° to +3 ° around the second rotation axis.

Preferably, each of the first guide grooves is adjacent to each of the first magnets, the first guide groove has a first upper rail and a first lower rail, the first upper rail and the second lower rail are disposed to face each other, and the first support mechanism is rollably accommodated between the first upper rail and the first lower rail.

Preferably, the second guide groove is adjacent to the second magnet, the second guide groove has a second upper rail and a second lower rail, the second upper rail and the second lower rail are disposed to face each other, and the second support mechanism is rollably accommodated between the second upper rail and the second lower rail.

Preferably, the driving device further includes a first sensing mechanism mounted in the first coil and disposed opposite to the first magnet so as to detect a position of the first magnet, and a second sensing mechanism mounted in the second coil and disposed opposite to the second magnet so as to detect a position of the second magnet.

Preferably, the second rotation axis passes through a center of the first sensing mechanism.

Preferably, the number of the first magnets is two, the number of the second magnets is 1, and accordingly, the number of the first coils is 2, and the number of the second coils is 1.

Preferably, a pitch between each of the magnets and the coil facing each other is 0.05 to 0.5mm, preferably, the pitch is 0.1 to 0.3mm, and preferably, the pitch is 0.1mm.

Preferably, the first magnet is of an arc-shaped structure, the N pole and the S pole of the first magnet are adjacently arranged along the Z axis, the positions of the N level and the S pole of the left side and the right side of the first magnet are opposite, the second magnet is of an arc-shaped structure, and the N pole and the S pole of the second magnet are adjacently arranged along the Y axis.

An electronic device comprising the driving apparatus according to any one of claims 1 to 15.

Drawings

Fig. 1 is a schematic structural diagram of a periscopic camera module according to a preferred embodiment of the present application;

FIG. 2 is a perspective block diagram of a light redirecting assembly according to the above-described preferred embodiment of the present application;

FIG. 3 is an exploded view of a light redirecting assembly according to the above-described preferred embodiment of the present application;

FIG. 4 is an exploded schematic view of the rotating mechanism according to the above preferred embodiment of the present application;

FIG. 5 is a front view of a rotating mechanism according to the above preferred embodiment of the present application;

FIG. 6 isbase:Sub>A cross-sectional view taken along line A-A of FIG. 5 according to the present application;

fig. 7 is a perspective structural view (front side) of the first carrier according to the above preferred embodiment of the present application;

fig. 8 is a perspective structural view (reverse side) of the first carrier according to the above preferred embodiment of the present application;

fig. 9 is a perspective structural view (reverse side) of the steering base according to the above preferred embodiment of the present application;

fig. 10 is an exploded schematic view of a movable carrier according to the above preferred embodiment of the present application;

fig. 11 is a perspective view of a second carrier according to the above preferred embodiment of the present application;

FIG. 12 is an exploded view of a light redirecting assembly according to another preferred embodiment of the present application;

FIG. 13 is an exploded schematic view of a rotating mechanism according to another preferred embodiment of the present application;

FIG. 14 is a perspective view of a rotating mechanism according to another preferred embodiment of the present application;

FIG. 15 is a top view of a drive arrangement and a movable carrier according to another preferred embodiment of the present application;

fig. 16 is a perspective view (reverse side) of a first carrier according to another preferred embodiment of the present application.

In the figure: 1. a light turning component; 10. a light turning mechanism; 101. a first optical path; 102 a second light path; 11. a right-angled surface; 12. a bevel; 2. a rotating mechanism; 20. a drive device; 201. a first rotating shaft; 202. a second rotation shaft; 203. a guide bar; 204. a guide bar groove; 211. a first coil; 212. a first magnet; 213. a first support mechanism; 214. a first guide groove; 221. a second coil; 222. a second magnet; 223. a second support mechanism; 224. a second guide groove; 30. a movable carrier; 31. a first carrier; 311. a first dynamic load part; 312. a base; 313. a guide portion; 314. a middle portion; 315. a side portion; 316. a first lower track; 317. a second upper rail; 40. a fixed base; 41. a circuit board; 42. a base; 421. an opening; 422. a first upper rail; 50. a second carrier; 51. a second dynamic load part; 52. a second lower rail; 53. a support surface; 60. a lens assembly; 70. the photosensitive assembly.

Detailed Description

The present invention is further described below with reference to specific embodiments, and it should be noted that, without conflict, any combination between the embodiments or technical features described below may form a new embodiment.

In the description of the present invention, it should be noted that, for the terms of orientation, such as "central", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., the terms of orientation and positional relationship indicate that the orientation or positional relationship shown in the drawings is based on, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and should not be construed as limiting the specific scope of the present invention.

It is noted that the terms first, second and the like in the description and in the claims of the present application are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.

The terms "comprises," "comprising," and "having," and any variations thereof, in the description and claims of this application, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.

It is noted that as used in this application, the terms "substantially," "about," and the like are used as words of table approximation and not as words of table degree, and are intended to account for inherent deviations in measured or calculated values that would be recognized by one of ordinary skill in the art.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through any intervening medium, or they may be connected through any combination of elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

As shown in fig. 1 and fig. 3, the periscopic camera module includes a lens assembly 60, a photosensitive assembly 70, and a light turning assembly 1, the lens assembly 60 is located in a photosensitive path of the photosensitive assembly 70, the light turning assembly 1 is used for converting a 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 on the rotating mechanism 2, the light turning mechanism 10 is used for turning light 90 ° and then passing through the lens assembly 60 to be received by the photosensitive assembly 70 for imaging, the rotating mechanism 2 drives the light turning mechanism 10 to rotate around at least one rotation axis to compensate an anti-shake displacement amount of an orthogonal plane of the lens assembly 60. Wherein the orthogonal coordinate system (X, Y, Z) shown in fig. 1 and 2 is applicable to all drawings, the Z axis is the optical axis direction of the lens assembly 60, the front-back direction, the X axis and the Y axis orthogonal to the Z axis are the optical axis orthogonal direction, the X axis is the left-right direction, the Y axis is the up-down direction, and the plane orthogonal to the optical axis is the coplanar between the X axis and the Y axis, and it should be understood that this coordinate system is only for illustrative purposes and should not be construed as limiting.

In some embodiments, the light-turning mechanism 10 enables light to be turned by 90 °, the light-turning mechanism 10 includes two right-angled surfaces 11 and a reflecting surface 12 (inclined surface 12), each right-angled surface 11 forms an angle of 45 ° with the reflecting surface 12, the reflecting surface 12 forms a first light path 101 and a second light path 102 perpendicular to each other, the lens component 60 and the photosensitive component 70 are disposed on the second light path 102, respectively, and light enters from the first light path 101, and enters the second light path 102 after being reflected by the reflecting surface 12. By way of example and not limitation, the light redirecting mechanism 10 may be implemented as a flat mirror or a prism. In particular, in an embodiment of the invention, the light-redirecting means 10 is embodied as a prism, in particular as a total-reflection prism.

According to a first aspect of the present application, there is provided a rotation mechanism 2, the rotation mechanism 2 is configured to drive the light steering mechanism 10 to rotate around a first rotation axis 201 (Y axis) and/or a second rotation axis 202 (X axis), the rotation mechanism 2 includes a driving device 20, a movable carrier 30 and a fixed base 40, the movable carrier 30 carries the light steering mechanism 10, the fixed base 40 and the movable carrier 30 are oppositely disposed along the first rotation axis 201 at intervals, the driving device 20 includes at least one set of coils and at least one set of magnets, the coils are disposed on the periphery of the fixed base 40 and parallel to the first rotation axis 201, the magnets are fixed on the movable carrier 30 and oppositely disposed with the coils, when the coils are energized, the coils are driven to rotate around the first rotation axis 201 and/or around the second rotation axis 202, and further, the magnets drive the movable carrier 30 to rotate around the first rotation axis to realize X axis anti-shake, and/or rotate around the second rotation axis 202 to realize Y axis anti-shake correction of the magnet assembly 60 along the optical axis 201. In the present embodiment, the "peripheral side" means a side surface parallel to the Y axis, which does not intersect the Y axis, and by providing the coil and the magnet on the peripheral side, the space in the X axis direction and the Z axis direction of the image pickup module is effectively used without increasing the height in the Y axis direction, which contributes to reducing the height of the image pickup module and facilitates the mounting.

In some embodiments, the driving device 20 further comprises at least one supporting mechanism and at least one guiding groove, the at least one guiding groove is opened between the movable carrier 30 and the fixed base 40, and the supporting mechanism is movably coupled to the guiding groove so as to enable the movable carrier 30 to rotate along the first rotating shaft 201 or the second rotating shaft 202. In other words, the guide groove takes the first rotating shaft 201 and/or the second rotating shaft 202 as a central axis, the guide groove can guide the rotating direction of the light steering mechanism 10, and when the coil is energized, the magnet can be driven to drive the light steering mechanism 10 to rotate around the first rotating shaft 201 and/or rotate around the second rotating shaft 202.

In some embodiments, the movable carrier 30 includes a first carrier 31 and a second carrier 50, the first carrier 31 and the second carrier 50 are disposed opposite to each other along the direction of the first rotation axis 201, the at least one set of magnets are fixed on the periphery of the second carrier 50 and disposed opposite to the at least one set of coils, the at least one guide slot and the at least one support mechanism are disposed between the first carrier 31 and the second carrier 50, and when the coils are energized, the second carrier 50 carrying the magnets is driven to rotate along the second rotation axis 202, so that the second carrier 50 rotates around the X axis relative to the first carrier 31 to achieve Y-axis anti-shake.

In some embodiments, the at least one set of coils includes at least one first coil 211 and at least one second coil 221, the at least one magnet includes at least one first magnet 212 and at least one second magnet 222, the first magnet 212 is fixed to two sides of the first carrier 31 along the second rotation axis 202, the first coil 211 is fixed to the periphery of the fixed base 40 and is disposed opposite to the first magnet 212, the first coil 211 and the first magnet 212 form a first magnetic field loop so as to drive the first carrier 31 to rotate along the first rotation axis 201, so that the first magnet 212 drives the movable carrier 30 to rotate around the Y axis in a deflection manner, so as to achieve the X axis anti-shake correction, the second magnet 222 is fixed to the periphery of the second carrier 50 along the optical axis direction, the second coil 221 is fixed to the periphery of the fixed base 40 and is disposed opposite to the second magnet 222, and the second coil 221 and the second magnet 222 form a second magnetic field loop so as to drive the second carrier 50 to rotate along the second rotation axis 202, so as to drive the movable carrier 30 to rotate around the Y axis, so as to achieve the X axis anti-shake correction.

That is, the first carrier 31 is disposed between the second carrier 50 and the fixing base 40 in a Y-axis overlapping manner, opposite surfaces are formed between the first carrier 31 and the second carrier 50 and the fixing base 40, respectively, and the at least one guide groove and the at least one supporting mechanism are disposed on the opposite surfaces so as to support the rotation of the first carrier 31 relative to the second carrier 50 and/or the fixing base 40. The first coil 211 and the second coil 221 are respectively attached to the periphery of the fixed base 40, the first coil 211 and the first magnet 212 are radially arranged relatively, the second coil 221 and the second magnet 222 are axially arranged relatively, the first coil 211 and the first magnet 212 are symmetrically arranged on the left side and the right side of the light steering mechanism 10, the second coil 221 and the second magnet 222 are arranged on the rear side of the light steering mechanism 10, the occupation of the coil and the magnets on the bottom space of the Y axis of the camera module is reduced, the redundant space of the Z axis and the X axis on the periphery of the light steering mechanism 10 is reasonably utilized, the height size of the periscopic camera module is effectively reduced, the magnets with larger sizes can be suitable for being arranged due to the larger available space in the X axis and Z axis directions, and larger driving force can be provided, so that the periscopic camera module is suitable for being applied to light and thin electronic equipment, and when the focal length of the lens assembly 60 is increased, the advantages of the periscopic camera module are obviously increased. The relative radial arrangement means that the first coil 211 and the first magnet 212 are arranged in an opposite direction along the X axis, the relative axial arrangement means that the second coil 221 and the second magnet 222 are arranged in an opposite direction along the Z axis, the rear side means the opposite side of the light exit surface of the light steering mechanism 10, i.e., the-Z axis, and the left and right sides means the + X axis and the-X axis.

In some embodiments, the first magnet 212 has an arc structure, the N pole and the S pole of the first magnet 212 are disposed adjacent to each other along the Z axis, and the positions of the N pole and the S pole of the first magnet 212 on the left and right sides are opposite, when the first coil 211 is energized, based on the interaction between the magnetic field generated by the first magnet 212 and the current in the first coil 211, the first magnetic field loop is formed, a lorentz force is generated, the first carrier 31 with the first magnet 212 is driven to rotate along the Y axis, so that the optical steering mechanism 10 on the movable carrier 30 is driven to rotate along the Y axis, and the X axis anti-shake correction of the camera module is achieved, wherein the direction of the lorentz force is a direction (Y axis or Z axis) orthogonal to the direction of the magnetic field (X axis) and the direction of the current in the first coil 211 (Z axis or Y axis), and the N pole and the S pole of the first magnet 212 are distributed along the Z axis, so that the first magnet 211 is transformed into a torque around the Y axis when the first magnet 212 is energized.

In some embodiments, the second magnet 222 has an arc structure, the N pole and the S pole of the second magnet 222 are disposed adjacent to each other along the Y axis, and if the second coil 221 is energized, based on the interaction between the magnetic field generated by the second magnet 222 and the current in the second coil 221, the second magnetic field loop is formed, a lorentz force is generated, the second carrier 50 with the second magnet 222 is driven to rotate along the X axis, so as to drive the light steering mechanism 10 on the movable carrier 30 to rotate along the X axis, so as to achieve Y axis anti-shake correction of the camera module, the lorentz force is in a direction (Y axis or X axis) orthogonal to the direction of the magnetic field (Z axis) and the direction of the current in the second coil 221 (X axis or Y axis), and since the N pole and the S pole of the first magnet 212 are distributed along the arc of the Y axis, after the first coil 211 is energized, the lorentz force is converted into a torque for rotating the first magnet 212 around the X axis.

In some embodiments, the first magnet 212 and the second magnet 222 are tile magnets, and the first magnet 212 and the second magnet 222 are permanent magnets made of a neodymium alloy or a samarium-cobalt alloy. In order to control the rotation amplitude more precisely, the arc size of the first magnet 212 is adapted to the arc shape formed by the rotation radius of the first carrier 31 around the Y axis, and the arc size of the second magnet 222 is adapted to the arc shape formed by the rotation radius of the second carrier 50 around the X axis.

In some embodiments, the number of the first magnets 212 is two, the first magnets 212 are symmetrically disposed on the left and right sides of the first carrier 31 and are disposed opposite to the first coils 211, a radial distance along the X axis is formed between the first coils 211 and the first magnets 212, and the radial distance is 0.05 to 0.5mm, preferably 0.1 to 0.3mm, and preferably 0.1mm. Therefore, the first magnet 212 does not contact the first coil 211, interference is avoided, and good magnetic induction can be generated.

In some embodiments, the number of the second magnets 222 is 1, the second magnets 222 are fixed on the rear side of the second carrier 50 and are arranged opposite to the second coil 221, an axial distance along the Z axis is formed between the second coil 221 and the second magnets 222, the axial distance is 0.05 to 0.5mm, preferably, the axial distance is 0.1 to 0.3mm, and preferably, the axial distance is 0.1mm. Therefore, the second magnet 222 does not contact the second coil 221, interference is avoided, and good magnetic induction can be generated.

In some embodiments, the guide grooves and the supporting mechanisms are two pairs, the supporting mechanisms may be balls, at least one ball is disposed in each of the guide grooves, the guide grooves include a first guide groove 214 and a second guide groove 224, the supporting mechanisms include a first supporting mechanism 213 and a second supporting mechanism 223, the first guide groove 214 is symmetrically opened on opposite surfaces of the fixed base 40 and the first carrier 31, the second guide groove 224 is respectively opened on opposite surfaces of the first carrier 31 and the second carrier 50, each supporting mechanism is accommodated in each guide groove, the first supporting mechanism 213 is accommodated in the first guide groove 214 so that the first supporting mechanism 213 rollably supports the first carrier 31 for rotation about the Y axis, and the second supporting mechanism 223 is accommodated in the second guide groove 224 so that the second supporting mechanism 223 rollably supports the second carrier 50 for rotation about the X axis. In other words, the first support mechanism 213 is engaged in the first guide groove 214, and the second guide groove 224 is engaged in such a manner that the first guide groove 214 is centered on the first rotation axis 201 and the second guide groove 224 is centered on the second rotation axis 202, so that the light redirecting mechanism 10 can be selectively rotated along the first guide groove 214 or the second guide groove 224. Therefore, through the arrangement of the first guide groove 214 and the first supporting mechanism 213 between the first carrier 31 and the fixed base 40, the first supporting mechanism 213 always maintains dynamic support for the first carrier 31 during the rotation of the first carrier 31 relative to the fixed base 40 around the Y axis during the X-axis optical anti-shake operation, so that the first carrier 31 can smoothly swing and rotate, thereby ensuring the X-axis anti-shake compensation displacement accuracy, and through the arrangement of the second guide groove 224 and the second supporting mechanism 223 between the second carrier 50 and the first carrier 31, the second supporting mechanism 223 always maintains dynamic support for the second carrier 50 during the rotation of the second carrier 50 relative to the first carrier 31 around the X axis during the Y-axis optical anti-shake operation, thereby ensuring the Y-axis anti-shake compensation displacement accuracy.

In some embodiments, the balls of the support mechanism may be partially or completely embedded in the guide grooves, the support mechanism may not be completely fixed in the guide grooves, the balls of the support mechanism may be partially inserted into the guide grooves and moved in a rolling manner, and the balls of the support mechanism may also be fixed in the guide grooves, and the balls of the support mechanism may be moved in a sliding manner in the guide grooves.

In some embodiments, the first guide grooves 214 are arc-shaped structures and parallel to a plane formed by an X axis and a Z axis, two first guide grooves 214 are disposed on opposite surfaces of the fixed base 40 and the first carrier 31 in a common circle, a width (X axis direction) of the first guide grooves 214 is adapted to the first supporting mechanism 213, a length (Z axis direction) of the first guide grooves 214 can be extended along the Z axis direction according to a requirement of a camera module to allow the first supporting mechanism 213 to roll or slide in the first guide grooves 214, so as to reduce friction, so that the first carrier 31 can rotate around the Y axis more flexibly and accurately, that is, the length of the first guide grooves 214 along the Z axis direction is greater than the length along the X axis, and a torque around the Y axis direction generated on the first carrier 31 between the first coils 211 and the first magnets 212 is generated, so that the first carrier 31 rotates along the first guide grooves 214, and the movement of the first supporting mechanism 213 along the Y axis direction is limited.

In some embodiments, the second guiding grooves 224 are arc-shaped and parallel to the plane formed by the Y axis and the Z axis, two second guiding grooves 224 are disposed in parallel on the opposite surfaces of the first carrier 31 and the second carrier 50, the width (X axis direction) of the second guiding grooves 224 is matched with the second supporting mechanism 223, the length (Z axis direction) of the second guiding grooves 224 can be extended along the Z axis direction according to the requirement of the camera module to allow the second supporting mechanism 223 to roll or slide in the second guiding grooves 224, so as to reduce the friction force, so that the second carrier 50 can rotate around the X axis more flexibly and accurately, that is, the inclined height of the first guiding grooves 214 along the Z axis and the Y axis plane is greater than the length along the X axis, and the second carrier 50 rotates along the second guiding grooves 224 by the torque generated between the second coils 221 and the second magnets 222 around the X axis direction, and the movement of the second supporting mechanism 223 along the X axis is limited.

In some embodiments, two first balls are disposed in each first guide groove 214, the first balls are spaced apart, two second balls are disposed in each second guide groove 224, the second balls are spaced apart, the width of the first guide groove 214 is adapted to the width of the first balls, and the width of the second guide groove 224 is adapted to the width of the second balls. Wherein the number of the first ball and the second ball should not be construed as limiting, the number of the first ball may be more or less than 2, and the number of the second ball may be more or less than 2. The first ball and the second ball can be made of the same or different materials.

In some embodiments, the curvature of the first guide groove 214 is about 45 ° to 55 °, such that the movable carrier 30 drives the light redirecting mechanism 10 through a yaw angle of about ± 21 ° about the first rotation axis 201. Preferably, the curvature of the first guiding groove 214 is about 50 °, which satisfies the requirement of X-axis large angle anti-shake correction.

In some embodiments, the curvature of the second guiding groove 224 is about 13 ° to about 18 °, such that the movable carrier 30 carries the light redirecting mechanism 10 with a pitch angle of about-8 ° to about +3 ° around the second rotation axis 202. Preferably, the curvature of the second guiding groove 224 is about 15 °, which satisfies the requirement of Y-axis large-angle anti-shake correction.

In some embodiments, the first guide grooves 214 are concavely opened at opposite left and right sides of the fixing base 40 and the first carrier 31, respectively, the first supporting mechanism 213 is rollably supported at the left and right sides of the first carrier 31 and the fixing base 40, so as to help maintain stability of the first carrier 31, each of the first guide grooves 214 is adjacent to each of the first magnets 212 at the circumferential side of the first carrier 31, the first guide grooves 214 are located at the outer side of the fixing base 40, and the outer free spaces of the fixing base 40 and the first carrier 31 are fully utilized to provide a larger spatial position for the first guide grooves 214, so that two of the first guide grooves 214 have a longer arc size in the Z-axis direction, when the first carrier 31 is guided around the Y-axis by the first guide grooves 214 and the first supporting mechanism 213, a larger deflection angle is provided for the first carrier 31, thereby facilitating realization of a larger angle of X-axis optical anti-shake, as shown in fig. 11. In other words, the first magnet 212 on the peripheral side of the first carrier 31 is more easily driven by the first guide grooves 214, the circle of the two first guide grooves 214 is larger, the arc of the first guide grooves 214 can be longer, as shown in fig. 15, the first guide grooves 214 are located right below the first magnet, and the fixing base 40 provides a larger deflection angle for the first carrier 31 by increasing the extension space in the X-axis direction, so that the first guide grooves 214 have a longer arc size in the Z-axis direction, thereby facilitating the realization of a larger X-axis optical anti-shake.

In some embodiments, the first rotation shaft 201 is orthogonal to the plane of the first guide groove 214, the first guide groove 214 is provided with a first upper rail and a first lower rail 316, the first upper rail and the second lower rail 52 are oppositely arranged, the first upper rail is opened on the upper surface of the fixed base 40 along an X-Z plane (a plane formed by an X axis and a Z axis), the first lower rail 316 is opened on the lower surface of the first carrier 31 along the X-Z plane and is adjacent to the first magnet 212, the motion track of the first support mechanism 213 is limited between the first upper rail and the first lower rail 316, which helps to guide the first carrier 31 during rotation along the Y axis, and the friction force between the first carrier 31 and the fixed base 40 is further reduced by using a ball bearing to replace sliding friction with rolling friction, thereby effectively improving the stability of the first carrier 31 during movement in the X axis optical anti-shake process and improving the imaging quality, as shown in fig. 10.

In some embodiments, the second rotation shaft 202 is orthogonal to the plane of the second guide groove 224, the second guide groove 224 is provided with a second upper rail 317 and a second lower rail 52, the second upper rail 317 and the second lower rail 52 are oppositely arranged, the second upper rail 317 is arranged on the upper surface of the first carrier 31 along a Y-Z plane (a plane formed by the Y axis and the Z axis), the second lower rail 52 is arranged on the lower surface of the second carrier 50 along the Y-Z plane and is adjacent to the second magnet 222, the movement track of the second support mechanism 223 is limited between the second upper rail 317 and the second lower rail 52, which helps to guide the second carrier 50 during rotation along the X axis, and the friction force between the second carrier 50 and the first carrier 31 is further reduced by using a ball bearing to replace sliding friction with rolling friction, thereby effectively improving the stability of the second carrier 50 during Y axis movement, and improving the imaging quality, as shown in fig. 4.

In some embodiments, the second supporting mechanism 223 may also be a guide bar groove 204, the second guide groove 224 is an engagement hole, the second guide groove 224 is opened on the sidewall of the second carrier 50 but does not penetrate through the sidewall, so as to avoid interference with the light steering mechanism 10, the second supporting mechanism 223 is engaged with the second guide groove 224 from the side surface of the first carrier 31, so that the second carrier 50 rotates along the guide bar groove 204 on the X axis, and the space in the X axis direction is utilized to expand the space in the X axis direction, thereby not only reducing the space occupation in the Y axis direction, but also being beneficial to expanding the arc length of the first guide groove 214, and further increasing the anti-shake and anti-yaw angle, as shown in fig. 14.

In some embodiments, the light redirecting mechanism 10, the second carrier 50, the first carrier 31, and the fixing base 40 are stacked along the Y-axis direction, the fixing base 40 carries the first carrier 31, the first carrier 31 carries the second carrier 50, and the second carrier 50 carries the light redirecting mechanism 10.

In some embodiments, the first carrier 31 includes a pair of first movable loading portions 311, a base portion 312, and a pair of guide portions 313, the first movable loading portions 311 are respectively located at the outer sides of the base portion 312, the first magnets 212 are respectively fixed to the first movable loading portions 311, the support portions extend obliquely upward from the middle of the base portion 312, the first lower rail 316 of the first guide groove 214 is opened at the lower surface of the base portion 312, and the second upper rail 317 of the second guide groove 224 is opened at the support portions, as shown in fig. 7.

In some embodiments, the middle portion 314 of the base 312 is lower than the side portions 315, which helps to reduce the height in the Y-direction.

In some embodiments, a space is provided in each of the first guide grooves 214 to divide each of the first guide grooves 214 into two, so that two first balls are accommodated in each of the first guide grooves 214 with a space, and the more first balls, the larger size of the first guide groove 214 is required, and if only one first ball is used, the shaking of the first carrier 31 is caused, wherein the space may be provided in the first upper rail and/or the first lower rail 316, so that the first balls are accommodated in the first guide grooves 214 with a space, so that the space between the first balls is maintained, and the stable rolling is facilitated. As shown in fig. 8, a space is provided in the middle of the first lower track 316, and the first balls are respectively held in the respective space areas.

In some embodiments, the second carrier 50 includes a second movable portion 51 and a supporting surface 53, the inclined surface 12 of the light redirecting mechanism 10 is attached to the supporting surface 53, the second movable portion 51 is located at the rear side of the second carrier 50, the second magnet 222 is fixed to the second movable portion 51, the second lower track 52 of the second guiding groove 224 is opened at the back of the second carrier 50, and the second ball is limited in the second upper track 317 and the second lower track 52. Wherein the inclined surface 12 of the light redirecting mechanism 10 is bonded to the supporting surface 53 by glue, which effectively prevents the light redirecting mechanism 10 from having a tendency to slide downward, so that it is stably held in the second carrier 50, as shown in fig. 9.

In some embodiments, the fixing base 40 includes a circuit board 41 and a base 42, the first upper tracks of the first guide grooves 214 are symmetrically disposed on the outer side of the base 42, the first upper tracks are adjacent to the first magnets 212, the circuit board 41 covers the side wall of the base 42, the first coils 211 and the second coils 221 are sequentially attached to the circuit board 41, the side wall of the base 42 is provided with a plurality of openings 421, the first coils 211 and the second coils 221 are received in the openings 421, so that the first coils 211 and the first magnets 212 are oppositely disposed in a spaced manner, the second coils 221 and the second magnets 222 are oppositely disposed in a spaced manner, the circuit board 41 is fixed or joined to the side wall of the fixing base 40, and the first coils 211 and the second coils 221 are electrically connected to the circuit board 41. When the X-axis anti-shake correction is performed, the first coil 211 is energized through the circuit board 41, and the first coil 211 and the first magnet 212 generate magnetic induction after being energized, so that the first magnet 212 is driven to drive the first carrier 31 to rotate around the Y-axis; when Y-axis anti-shake correction is performed, the second coil 221 is energized through the circuit board 41, the second coil 221 and the second magnet 222 generate magnetic induction after being energized, so that the second magnet 222 is driven to further drive the second carrier 50 to rotate around the X-axis, and because only the second carrier 50 and the light steering mechanism 10 therein need to be driven to rotate, relatively speaking, Y-axis anti-shake stroke can be realized only by a small driving force without driving the whole movable carrier 30 to perform pitching rotation, power consumption is reduced, and the volume and the number of the second magnet 222 can be smaller than those of the first magnets 212. Accordingly, the number of the second magnets 222 is 1, the number of the first magnets 212 is 2, the number of the second coils 221 is 1, and the number of the second coils 221 is 2. That is, the Y-axis anti-shake stroke and the X-axis anti-shake stroke are separately controlled, which helps to reduce the burden of each component, and the movable carrier 30 does not need to be moved as a whole in the Y-axis anti-shake stroke, and the Y-axis large-angle anti-shake stroke is effectively increased under the condition that the volume and the driving force of the second magnet 222 are constant.

In some embodiments, the circuit board 41 is an FPC (flexible printed circuit) 41, the first coil 211 is attached to two sides of the circuit board 41, and the second coil 221 is attached to the middle of the circuit board 41, so that the coils are located on the periphery of the light steering mechanism 10, and the assembly is more convenient, and the coils do not need to be arranged on the bottom surface, thereby saving the space of the bottom surface. Meanwhile, the first guide groove 214 and the first supporting mechanism 213 are arranged on the base 42 of the fixed base 40, so that the assembly is simple, the movable carrier 30 can be directly overlapped on the base 42, the assembly difficulty is reduced, and the production efficiency is improved.

In some embodiments, the light redirecting assembly 1 further includes a housing 3, and the light redirecting mechanism 10 and the turning mechanism 2 are housed in the housing 3.

In some embodiments, the first carrier 31, the second carrier 50, the fixing base 40 and the corresponding guide groove may be formed by injection molding.

In some embodiments, the driving device 20 further includes a first sensing mechanism installed in the first coil 211 and disposed opposite to the first magnet 212 to detect the position of the first magnet 212 and further control the deflection angle of the light steering mechanism 10, and a second sensing mechanism installed in the second coil 221 and disposed opposite to the second magnet 222 to detect the position of the second magnet 222 and further control the pitch angle of the light steering mechanism 10.

In some embodiments, the first sensing mechanism and the second sensing mechanism may be ICs, hall devices, or other position sensing devices.

In some embodiments, the second rotation axis 202 is as close as possible to the center of the first sensing mechanism, e.g., the second rotation axis 202 passes through the center of the first sensing mechanism, which helps to reduce or eliminate the influence of the second magnet 222 and the second coil 221 on the first sensing mechanism.

In some embodiments, the periscopic camera module further includes an assembly body, and the light turning component 1, the lens component 60 and the light sensing component 70 are accommodated in the assembly body, and the assembly body has a window corresponding to the first light path 101. For example, in this embodiment of the present invention, when the light steering mechanism 10 is implemented as a prism, during the image acquisition process of the periscopic camera module, the light reflected by the acquisition opposite direction reaches the light steering mechanism 10 through the window of the assembly, enters the inside of the light steering mechanism 10 through one of the right-angle surfaces 11 of the light steering mechanism 10, is reflected by the inclined surface 12 of the light steering mechanism to be steered, and then exits from the other right-angle surface 11 of the light steering mechanism 10 to reach the lens assembly 60, further, the steered light reaches the photosensitive chip of the photosensitive assembly 70 through the refraction of the lens assembly 60 and the light filtering action of the optical filter of the photosensitive assembly 70, further, the light signal is converted into an electrical signal through the light sensing action of the photosensitive chip, and the electrical signal is transmitted to the connected wiring board, and then transmitted to the applied electronic equipment through the wiring board, so as to realize the image acquisition, and the image reproduction is realized through the electronic equipment.

In some embodiments, the periscopic camera module further includes a driving element, and the lens assembly 60 is disposed in the driving element, so that the lens assembly 60 is driven and adjusted to move back and forth along the optical axis direction by the driving element, so as to achieve auto-focusing, and meanwhile, the lens assembly 60 is kept in the photosensitive path of the photosensitive assembly 70. By way of example but not limitation, the drive element may be implemented as a voice coil motor or a piezoelectric motor.

According to a second aspect of the present application, as shown in fig. 12 to 16, the rotating mechanism 2 includes a driving device 20, a movable carrier 30 and a fixed base 40, the movable carrier 30 carries the light redirecting mechanism 10, the driving device 20 includes a first driving component and a second driving component, the movable carrier 30 includes a first carrier 31 and a second carrier 50, the first driving component drives the first carrier 31 to rotate around the Y axis, and the second driving component drives the second carrier 50 to rotate around the X axis.

In some embodiments, the first driving assembly includes a first coil 211, a first magnet 212, a first guide groove 214, and a first ball, the first magnet 212 is fixed to the left and right sides of the first carrier 31, the first coil 211 is attached to the left and right side walls of the fixing base 40 and disposed opposite to the first coil 211, the first guide groove 214 and the first ball are located between the first carrier 31 and the fixing base 40, and the first carrier 31 is driven to rotate along the first guide groove 214 and around the Y axis by magnetic induction between the first coil 211 and the first magnet 212, so as to implement X-axis anti-shake correction.

In some embodiments, the second driving assembly includes a second coil 221, a second magnet 222, a guide rod 203, and a guide rod groove 204, the second magnet 222 is fixed to the rear side of the second carrier 50, the second coil 221 is attached to the rear side wall of the fixed base 40 and is disposed opposite to the second magnet 222, the guide rod groove 204 is respectively opened at two sides of the second carrier 50, the guide rod 203 extends from the side surface of the first carrier 31 to the guide rod groove 204, the guide rod 203 does not penetrate through the light steering mechanism 10, a lubricant is coated between the guide rod 203 and the guide rod groove 204 to reduce friction between the guide rod 203 and the guide rod groove 204, and the second carrier 50 is driven to rotate around the guide rod 203 in the X-axis direction by magnetic induction between the second coil 221 and the second magnet 222, so as to implement Y-axis anti-shake correction. Therefore, the height of the guide rod 203 and the guide rod groove 204 is further reduced by replacing the second guide groove 224 and the second ball, the space in the X-axis direction is reasonably utilized, the radian of the first guide groove 214 is expanded, and the space in the Y-axis direction is further saved.

The foregoing has described the general principles, principal features, and advantages of the invention. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are merely illustrative of the principles of the invention, but various changes and modifications may be made without departing from the spirit and scope of the invention, which is defined by the appended claims. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims (16)

1. A drive device for driving a light redirecting mechanism, comprising:

at least one set of coils disposed on a peripheral side of the light redirecting mechanism and parallel to the first axis of rotation;

at least one group of magnets, wherein each group of magnets and each group of coils are oppositely arranged and can drive the light steering mechanism to rotate;

the supporting mechanism is movably connected with the guide groove, the guide groove takes a first rotating shaft and/or a second rotating shaft as a central shaft, the at least one guide groove is orthogonal to the first rotating shaft or the second rotating shaft, the guide groove can guide the rotating direction of the light steering mechanism, and when the coil is electrified, the magnet can be driven to drive the light steering mechanism to rotate around the first rotating shaft and/or rotate around the second rotating shaft.

2. The driving device as claimed in claim 1, wherein the at least one set of coils includes at least a first coil and at least a second coil, the at least one magnet includes at least a first magnet and at least a second magnet, the first coil and the first magnet are disposed opposite to each other along the direction of the second rotation axis, the first coil and the first magnet form a first magnetic field loop to drive the light steering mechanism to rotate along the first rotation axis, the second coil and the second magnet are disposed opposite to each other along the direction of the optical axis, and the second coil and the second magnet form a second magnetic field loop to drive the light steering mechanism to rotate along the second rotation axis.

3. The drive device according to claim 2, wherein the first coil and the first magnet are symmetrically provided on both left and right sides of the light steering mechanism in the second rotation axis direction, and the second coil and the second magnet are provided on a rear side of the light steering mechanism in the optical axis direction.

4. The driving apparatus according to claim 2, wherein the guide groove includes a first guide groove and a second guide groove, and the support mechanism includes a first support mechanism engaged in the first guide groove and a second support mechanism engaged in the second guide groove, the first guide groove being centered on the first rotation axis, the second guide groove being centered on the second rotation axis, so that the light redirecting mechanism is selectively rotatable along the first guide groove or the second guide groove.

5. The drive of claim 4, wherein the first guide grooves are arcuate and parallel to the X-Z plane, the first support means are balls, and two first balls are disposed in each of the first guide grooves, the first balls being spaced apart.

6. The drive of claim 4, wherein the second guide grooves are arcuate and parallel to the Y-Z plane, the second support means are balls, and two second balls are disposed in each of the second guide grooves and are spaced apart from each other.

7. The drive device according to claim 4, wherein the curvature of the first guide groove is 45 ° to 55 °, and the curvature of the second guide groove is 13 ° to 18 °, and preferably wherein the curvature of the first guide groove is 50 ° and the curvature of the second guide groove is 15 °.

8. The driving device according to claim 4, wherein the first coil and the first magnet drive the light redirecting mechanism to have a yaw angle of-21 ° to +21 ° about the first rotation axis, and the second coil and the second magnet drive the light redirecting mechanism to have a pitch angle of-8 ° to +3 ° about the second rotation axis.

9. The drive of claim 4, wherein the first guide slot is provided with a first upper rail and a first lower rail, the first upper rail and the second lower rail being disposed opposite each other, the first support mechanism being rollably received between the first upper rail and the first lower rail.

10. The drive device according to claim 4, wherein said second guide groove is adjacent to said second magnet, said second guide groove is provided with a second upper rail and a second lower rail, said second upper rail and said second lower rail are disposed oppositely, and said second support mechanism is rollably accommodated between said second upper rail and said second lower rail.

11. The drive device according to any one of claims 2 to 10, further comprising a first sensor mechanism mounted in said first coil and disposed opposite to said first magnet so as to detect a position of said first magnet, and a second sensor mechanism mounted in said second coil and disposed opposite to said second magnet so as to detect a position of said second magnet.

12. The drive of claim 11, wherein the second axis of rotation passes through a center of the first sensing mechanism.

13. The drive device according to any one of claims 2 to 10, wherein the number of the first magnets is two, the number of the second magnets is 1, and accordingly, the number of the first coils is 2, and the number of the second coils is 1.

14. The drive device according to any one of claims 2 to 10, wherein a pitch between each of the magnets and the coil facing each other is 0.05 to 0.5mm, preferably, the pitch is 0.1 to 0.3mm, and preferably, the pitch is 0.1mm.

15. The drive device according to any one of claims 2 to 10, wherein the first magnet has an arc-shaped configuration, N-poles and S-poles of the first magnet are disposed adjacent to each other along the Z-axis, and N-poles and S-poles of the first magnet on the left and right sides are disposed at opposite positions, and the second magnet has an arc-shaped configuration, and N-poles and S-poles of the second magnet are disposed adjacent to each other along the Y-axis.

16. An electronic device comprising the driving apparatus according to any one of claims 1 to 15.

Images