CN112399053A

CN112399053A - Miniature optical anti-shake module and camera module with same

Info

Publication number: CN112399053A
Application number: CN202011245765.3A
Authority: CN
Inventors: 刘述伦; 夏念明; 耿新龙
Original assignee: Dongguan Yadeng Electronics Co Ltd
Current assignee: Guangdong haideya Technology Co.,Ltd.
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-02-23

Abstract

The invention discloses a micro optical anti-shake module and a camera module with the same, and relates to the technical field of optical anti-shake. The invention relates to a micro optical anti-shake module, wherein: the X-axis overturning plate in a frame shape is rotationally connected with the substrate, and the X-axis SMA wire assembly is electrified and contracted to generate torque to drive the X-axis overturning plate to rotate relative to the substrate; the Y-axis overturning plate is rotationally connected with the X-axis overturning plate, and the Y-axis SMA wire assembly is electrified and contracted to generate torque to drive the Y-axis overturning plate to rotate relative to the X-axis overturning plate; the Z-axis motion assembly comprises a Z-axis SMA drive assembly and a Z-axis rotating seat, the Z-axis rotating seat is arranged in a round hole of the Y-axis turnover plate, and the Z-axis SMA wire assembly is used for driving the Z-axis rotating seat to rotate relative to a Z axis. The invention can greatly reduce the driving load of the Z-axis actuator and improve the anti-shake sensitivity; in addition, the SMA wire assemblies are selected as the actuators, so that continuous large and stable driving force can be ensured, and the influence of a magnetic field on the operation of other sensors can be avoided.

Description

Miniature optical anti-shake module and camera module with same

Technical Field

The invention relates to the technical field of camera shooting and anti-shake, in particular to a micro optical anti-shake module and a camera module with the same.

Background

In recent years, the application of miniature camera modules is becoming more and more popular, and the application range is expanding, including various handheld mobile devices, such as smart phones, tablet computers, and the like. When the handheld mobile device is used for shooting, due to the inevitable influence of human shaking factors, shot pictures or videos are often blurred, and the influence is more obvious particularly under the condition of dark light.

In order to solve the above technical problems, various miniature anti-shake pan-tilt apparatuses using a voice coil motor as a driving device have been proposed in the related art. Most of the miniature anti-shake tripod heads are provided with modules rotating around the optical axis at the outermost periphery of the tripod head, so that the burden of the optical axis rotating module is large; in addition, voice coil motor driven rotatory module is comparatively obvious in the decay of magnetic field force when the module is rotatory, and the rotation that is unsuitable large-angle is adjusted for the anti-shake effect is limited.

Disclosure of Invention

The invention aims to at least solve one of the technical problems in the related art, and therefore, the invention provides a micro optical anti-shake module and a camera module with the same, the Z-axis driving burden is small, and the improvement of the sensitivity of optical anti-shake is facilitated; the SMA driving component has larger driving force and is beneficial to improving the optical anti-shake performance.

According to a first aspect of the present invention, a micro optical anti-shake module comprises:

a substrate provided with a frame-shaped hollow portion;

the horizontal movement assembly comprises an X-axis actuator and a Y-axis actuator, the X-axis actuator comprises an X-axis turnover plate and an X-axis SMA drive assembly, the X-axis turnover plate is frame-shaped and is rotationally connected with the substrate, the X-axis SMA drive assembly is connected with the X-axis turnover plate and the substrate, the X-axis SMA drive assembly is used for driving the X-axis turnover plate to rotate along the X axis relative to the substrate, the Y-axis actuator comprises a Y-axis turnover plate and a Y-axis SMA drive assembly, the Y-axis turnover plate is rotationally connected with the X-axis turnover plate, the Y-axis SMA drive assembly is connected with the Y-axis turnover plate and the X-axis turnover plate, and the Y-axis SMA drive assembly is used for driving the Y-axis turnover plate to rotate along the Y axis relative to the X-axis turnover plate;

and the Z-axis motion assembly is arranged on the Y-axis turnover plate and comprises a Z-axis SMA drive assembly and a Z-axis rotating seat, the Z-axis SMA drive assembly is connected with the Z-axis rotating seat and the Y-axis turnover plate, and the Z-axis SMA drive assembly is used for driving the Z-axis rotating seat to rotate relative to the Z axis.

The micro optical anti-shake module according to the embodiment of the invention has at least the following beneficial effects:

the X-axis turnover plate and the Y-axis turnover plate are rotatably connected, so that the thickness of the horizontal actuator assembly is effectively reduced, the volume of the horizontal actuator assembly is light and thin, and more other components can be arranged in the handheld mobile device with extremely limited space. Set up Z axle actuator on Y axle returning face plate, Z axle roating seat follows Y axle returning face plate around Y axle upset, Y axle returning face plate follows X axle returning face plate around the upset of X axle, and Z axle actuator only drives Z axle roating seat and rotates around the optical axis, alright realization triaxial anti-shake. Compared with the prior art that the optical axis rotating module drives the X, Y axis rotating module to rotate, the driving load of the Z axis actuator can be greatly reduced, and the motion sensitivity of the Z axis rotating seat is improved. X, Y, Z the SMA wire components are selected as the actuators of the shaft, which can not only ensure the continuous and stable driving force, but also avoid the magnetic field from influencing the operation of other sensors; in addition, the SMA wires of the X, Y, Z shafts do not interfere with each other, so that the reaction speed of the module is effectively increased, and the accuracy of movement is improved.

According to the micro optical anti-shake module provided by some embodiments of the invention, a round hole is formed in the center of the Y-axis turnover plate; z axle roating seat includes that rotating member and center are equipped with the backup pad of revolving stage, the backup pad with Y axle returning face plate upper surface contact, the revolving stage set up in the round hole, the rotating member fixed set up in revolving stage outside bottom surface and with Y axle returning face plate lower surface contact, Z axle SMA drive assembly set up in just connect the rotating member on the bottom surface of Y axle returning face plate.

According to the micro optical anti-shake module provided by some embodiments of the invention, the upper surface and the lower surface of the Y-axis turnover plate are respectively provided with a protrusion, the protrusions are arranged around the circular hole, the bottom surface of the supporting plate is abutted with the protrusions on the upper surface of the Y-axis turnover plate, and the rotating piece is abutted with the protrusions on the lower surface of the Y-axis turnover plate.

According to the miniature optical anti-shake module provided by some embodiments of the invention, four groups of Z-axis SMA drive assemblies are arranged, and each Z-axis SMA drive assembly comprises a connecting plate and a Z-axis SMA wire; the middle of the bottom surface of the rotating part is provided with two V-shaped connecting pieces, two ends of each V-shaped connecting piece form two connecting lugs, openings of the two V-shaped connecting pieces are arranged in a back-to-back mode, the connecting plates are arranged on the bottom surface of the Y-axis overturning plate, and each group of Z-axis SMA driving assemblies is provided with one connecting lug, and the connecting plates are connected to one of the connecting lugs through Z-axis SMA wires.

According to some embodiments of the micro optical anti-shake module of the invention, the rotating member comprises an elastic arm, and one end of the elastic arm is connected to the Y-axis flipping plate.

According to the micro optical anti-shake module provided by some embodiments of the invention, the hole wall of the round hole is provided with a limiting groove, the rotating piece is provided with a limiting block, the limiting block is matched with the limiting groove, and the width of the limiting groove is greater than that of the limiting block.

According to the micro optical anti-shake module of some embodiments of the present invention, the X-axis flip plate and the substrate are movably connected by a pair of connecting balls.

According to some embodiments of the invention, the micro optical anti-shake module further comprises an upper connection part and a lower connection part, the upper connection part and the lower connection part are oppositely arranged, one sides of the upper connection part and the lower connection part, which are opposite, are respectively provided with a connection groove, and the connection ball is rotatably arranged between the two connection grooves of the upper connection part and the lower connection part; go up the switching portion under the switching portion with connect the ball and constitute switching structure, wherein two sets of switching structure set up in the base plate with between the X axle returning face plate, the base plate with in the X axle returning face plate its one with connect ball fixed connection, another with go up the switching portion with under switching portion fixed connection.

According to some embodiments of the invention, the X-axis SMA drive assembly includes two first common ends, two first control ends and X-axis SMA wires, the first common end is disposed on the X-axis flipping plate and located at a rotational connection position of the X-axis flipping plate and the substrate, the first control ends are disposed on the substrate and located at two sides of the first common end, and the first control ends are both connected to the first common ends through the X-axis SMA wires.

The camera module according to the second aspect of the present invention includes the micro optical anti-shake module.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

FIG. 1 is a perspective view of one embodiment of the present invention.

Fig. 2 is a perspective view of an embodiment of the present invention.

Fig. 3 is an exploded view of an SMA wire drive assembly in an embodiment of the invention.

Fig. 4 is a front view of one embodiment of the present invention.

Fig. 5 is a side view of one embodiment of the present invention.

FIG. 6 is a side view of another SMA wire drive assembly in accordance with one embodiment of the invention.

FIG. 7 is a bottom view of a Z-axis SMA drive assembly in an embodiment of the invention.

Fig. 8 is an exploded view of one embodiment of the present invention.

FIG. 9 is an exploded view of a substrate in accordance with one embodiment of the present invention.

FIG. 10 is a cross-sectional view of a ball joint in accordance with an embodiment of the present invention.

FIG. 11 is a perspective view of another embodiment of the present invention.

Reference numerals:

a substrate 1;

an X-axis flipping panel 21; an X-axis SMA wire assembly 22; x-axis SMA wire 221; a first control terminal 222; a first common terminal 223;

a Y-axis flipping plate 31; a Y-axis SMA wire assembly 32; a circular hole 33; a limit groove 331; y-axis SMA wire 321; a second control terminal 322; a second common terminal 323;

a Z-axis rotary base 41; a support plate 411; a rotary table 4111; a rotary piece 413; attachment ears 4131; a resilient arm 4132; a stopper 4133; a Z-axis SMA drive assembly 42; a projection 43; a rotating frame 44; a rotating arm 45;

a first Z-axis SMA wire 421 a; a second Z-axis SMA wire 421 b; three Z-axis SMA wires 421 c; a fourth Z-axis SMA wire 421 d; a first connecting plate 422 a; the second connecting plate 422 b; the third connecting plate 422 c; the fourth connecting plate 422 d;

a connecting ball 51; the adapter structure 52;

the upper transfer portion 52 a; a semicircular groove 52 b; the lower junctions 52 c;

an upper plate a; a middle layer plate b; a lower plate c;

a first upper sheet a 1; a second upper sheet a 2; a third upper sheet a 3;

a first middle layer sheet b 1; a second middle layer sheet b 2; a third middle layer sheet b 3;

a first lower laminate c 1; a second lower plate c 2; a third lower plate c 3;

and a camera module 6.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it should be understood that the orientation or positional relationship referred to in the description of the orientation, such as the upper, lower, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does 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 thus, should not be construed as limiting the present invention.

In the description of the present invention, the meaning of a plurality of means is one or more, the meaning of a plurality of means is two or more, and larger, smaller, larger, etc. are understood as excluding the number, and larger, smaller, inner, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.

In the description of the present invention, unless otherwise explicitly limited, terms such as arrangement, installation, connection and the like should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above terms in the present invention in combination with the specific contents of the technical solutions.

A micro optical anti-shake module according to an embodiment of the first aspect of the invention is described below with reference to fig. 1 to 10.

According to the first aspect of the present invention, the micro optical anti-shake module comprises:

a substrate 1, wherein the substrate 1 is provided with a frame-shaped hollow part;

the horizontal movement assembly comprises an X-axis actuator and a Y-axis actuator, the X-axis actuator comprises an X-axis turnover plate 21 and an X-axis SMA driving assembly 22, the X-axis turnover plate 21 is in a frame shape and is rotatably connected with the substrate 1, the X-axis SMA driving assembly 22 is connected with the X-axis turnover plate 21 and the substrate 1, the X-axis SMA driving assembly 22 is used for driving the X-axis turnover plate 21 to rotate along the X axis relative to the substrate 1, the Y-axis actuator comprises a Y-axis turnover plate 31 and a Y-axis SMA driving assembly 32, the Y-axis turnover plate 31 is rotatably connected with the X-axis turnover plate 21, the Y-axis SMA driving assembly 32 is connected with the Y-axis turnover plate 31 and the X-axis turnover plate 21, and the Y-axis SMA driving assembly 32 is used for driving the Y-axis turnover plate 31 to rotate along;

and the Z-axis motion assembly is arranged on the Y-axis overturning plate 31 and comprises a Z-axis SMA drive assembly 42 and a Z-axis rotating seat 41, the Z-axis SMA drive assembly 42 is connected with the Z-axis rotating seat 41 and the Y-axis overturning plate 31, and the Z-axis SMA drive assembly 42 is used for driving the Z-axis rotating seat 41 to rotate relative to the Z axis.

Referring to fig. 1 and 2, the substrate 1 is a hollow frame, and the X-axis flipping plate 21 is a frame, which may be rectangular as shown in the figure, but may be other symmetrical shapes, such as a circular frame. The X-axis turnover plate 21 is arranged in the frame-shaped interior of the substrate 1 and is rotationally connected with the substrate 1, and the X-axis turnover plate 21 can turn over along the X axis relative to the substrate 1; the Y-axis turnover plate 31 is arranged inside the frame of the X-axis turnover plate 21 and is rotatably connected with the X-axis turnover plate 21, and the Y-axis turnover plate 31 can turn over along the Y axis relative to the X-axis turnover plate 21.

The X-axis SMA driving assemblies 22 are symmetrically arranged along the rotating shaft of the X-axis turnover plate 21, are connected with the substrate 1 and the X-axis turnover plate 21, and are used for driving the X-axis turnover plate 21 to turn over in the substrate 1; the Y-axis SMA driving assemblies 32 are symmetrically arranged along the rotation axis of the Y-axis flipping plate 31, are connected with the X-axis flipping plate 21 and the Y-axis flipping plate 31, and are used for driving the Y-axis flipping plate 31 to flip in the X-axis flipping plate 21.

Referring to fig. 1 and 2, a Z-axis rotating base 41 is provided on the Y-axis flipping plate 31; the Z-axis SMA drive assembly 42 comprises a connecting plate 422 and Z-axis SMA wires which are arranged on the lower surface of the Y-axis overturning plate 31; the connecting plates 422 are at least provided with two connecting plates and symmetrically arranged along the round hole 33, the Z-axis SMA wires are at least provided with two connecting plates, one end of each Z-axis SMA wire is connected with one connecting plate 422, and the other end of each Z-axis SMA wire is connected with the Z-axis rotating base 41 and is separated from the rotating center of the Z-axis rotating base 41 by a certain distance. When the Z-axis SMA wire is used, an electric signal is applied to one of the Z-axis SMA wires, so that the Z-axis SMA wire is electrified and contracted to generate torque to drive the Z-axis rotating seat 41 to rotate.

Through the arrangement, the Z-axis rotating base 41 is arranged on the Y-axis overturning plate 31, and the Z-axis rotating base 41 only needs to directly drive the lens module arranged on the Z-axis rotating base 41 to rotate, so that the rotating inertia of the Z-axis rotating base 41 can be greatly reduced, the driving force of a Z-axis SMA wire is saved, the energy consumption can be saved, and the rotation sensitivity can be improved; in addition, the SMA wires of the X, Y, Z shafts do not interfere with each other in operation, so that the reaction speed of the module is effectively increased, the accuracy of movement is improved, and the optical anti-shake performance is improved.

In some embodiments of the present invention, a circular hole 33 is formed at the center of the Y-axis flipping plate 31; the Z-axis rotating base 41 includes a rotating member 413 and a supporting plate 411 with a rotating platform 4111 in the center, the supporting plate 411 contacts with the upper surface of the Y-axis flipping plate 31, the rotating platform 4111 is disposed in the circular hole 33, the rotating member 413 is fixedly disposed on the outer bottom surface of the rotating platform 4111 and contacts with the lower surface of the Y-axis flipping plate 31, and the Z-axis SMA driving assembly 42 is disposed on the bottom surface of the Y-axis flipping plate 31 and connected with the rotating member 413.

Specifically, as shown in fig. 1 and 2, the Z-axis rotary base 41 is disposed in the circular hole 33, which is beneficial to reducing the overall thickness of the micro optical anti-shake module. As shown in fig. 3, the rotary member 413 is fixedly disposed on the outer bottom surface of the rotary table 4111, the support plate 411 abuts against the upper surface of the substrate 1, and the rotary member 413 abuts against the lower surface of the support plate 411 to limit the position of the rotary base on the Z axis.

In some embodiments of the present invention, the protrusions 43 are provided on both the upper surface and the lower surface of the Y-axis flipping plate 31, the protrusions 43 are provided around the circular hole 33, the bottom surface of the supporting plate 411 abuts against the protrusions 43 on the upper surface of the Y-axis flipping plate 31, and the rotating member 413 abuts against the protrusions 43 on the lower surface of the Y-axis flipping plate 31.

Referring to fig. 3, the protrusion 43 may have a circular disk shape, and may have other shapes. When the moment generated by the contraction of the Z-axis SMA wire pulls the rotating piece 413 to rotate, because the bottom surface of the supporting plate 411 is abutted to the protrusion 43 on the upper surface of the Y-axis turnover plate 31, the rotating piece 413 is abutted to the protrusion 43 on the lower surface of the Y-axis turnover plate 31, the contact area between the supporting plate 411 and the Y-axis turnover plate 31 is small, the contact area between the bottom surface of the supporting plate 411 and the upper surface of the Y-axis turnover plate 31 and the suction force existing due to the too tight contact between the rotating piece 413 and the lower surface of the Y-axis turnover plate 31 are favorably reduced, the friction between the supporting plate 411, the rotating piece 413 and the Y-axis turnover plate 31 can be reduced, the driving force of the Z-axis SMA.

In some embodiments of the invention, there are four sets of Z-axis SMA drive assemblies 42, each Z-axis SMA drive assembly 42 comprising a connecting plate 422 and Z-axis SMA wires; two V-shaped connecting pieces are arranged in the middle of the bottom surface of the rotating piece 413, two ends of each V-shaped connecting piece form two connecting lugs 4131, openings of the two V-shaped connecting pieces are arranged in a reverse mode, the connecting plates 422 are arranged on the bottom surface of the Y-axis overturning plate 31, and the connecting plates in each group of Z-axis SMA driving assemblies 42 are connected to one of the connecting lugs 4131 through Z-axis SMA wires.

Referring to fig. 2, 3 and 7, the Z-axis SMA drive assembly 42 includes a first Z-axis SMA wire assembly and a second Z-axis SMA wire assembly. The first Z-axis SMA wire assembly comprises a first connecting plate 422a, a second connecting plate 422b, a first Z-axis SMA wire 421a and a second Z-axis SMA wire 421b, the first Z-axis SMA wire 421a is connected with the first connecting plate 422a and one of the connecting lugs 4131, the second Z-axis SMA wire 421b is connected with the second connecting plate 422b and one of the connecting lugs 4131, and the first Z-axis SMA wire 421a and the second Z-axis SMA wire 421b are perpendicular to each other when viewed from the bottom; the second Z-axis SMA wire assembly includes a third connecting plate 422c, a fourth connecting plate 422d, a third Z-axis SMA wire 421c and a fourth Z-axis SMA wire 421d, the third Z-axis SMA wire 421c connects the third connecting plate 422c and one of the connecting lugs 4131, the fourth Z-axis SMA wire 421d connects the fourth connecting plate 422d and one of the connecting lugs 4131, and the third Z-axis SMA wire 421c and the fourth Z-axis SMA wire 421d are perpendicular to each other when viewed from the bottom. Wherein, the heights of the two V-shaped connecting sheets are different; the first connecting plate 422a and the fourth connecting plate 422d are consistent in height and are at the same height with one V-shaped connecting plate; the second connecting plate 422b is as high as the third connecting plate 422c and is at the same height with another V-shaped connecting plate; the first connection plate 422a and the second connection plate 422b are adjacently disposed, and the third connection plate 422c and the fourth connection plate 422d are adjacently disposed. By such arrangement, the first Z-axis SMA wire 421a and the second Z-axis SMA wire 421b are spaced by a certain height distance, and the third Z-axis SMA wire 421c and the fourth Z-axis SMA wire 421d are spaced by a certain height distance, so that short circuit between SMA wires or poor heat dissipation due to too close distance can be prevented. Through the arrangement, any one Z-axis SMA wire can be electrified to be contracted to generate torque, and the rotating piece 413 can be pulled to rotate; or the first Z-axis SMA wire 421a and the second Z-axis SMA wire 421b, or the third Z-axis SMA wire 421c and the fourth Z-axis SMA wire 421d may be energized simultaneously, so that they contract simultaneously to generate a moment to pull the Z-axis rotating base 41 to slightly translate in one direction, thereby increasing the adjustment range; in addition, two "V" shaped connecting pieces are arranged at the rotation center of the rotating piece 413, and the Z-axis SMA wires connect the connecting lugs 4131 on the "V" shaped connecting pieces and the connecting plates 422, so that the distance from each Z-axis SMA wire to the rotation center can be reduced, and when the contraction length of the Z-axis SMA wires is constant, the closer to the rotation center, the larger the rotation angle of the Z-axis rotating base 41 is.

In some embodiments of the invention, the rotating member includes a resilient arm 4132, and one end of the resilient arm 4132 is connected to the Y-axis flipping plate 31.

Referring to fig. 3, the resilient arms 4132 are serpentine and bent multiple times, and 2 resilient arms 4132 are disposed between the first Z-axis SMA wire 421a and the fourth Z-axis SMA wire 421d, and between the third Z-axis SMA wire 421c and the second Z-axis SMA wire 421b, respectively, so as to prevent the resilient arms 4132 from affecting the contraction of the Z-axis SMA wires. The SMA wire is contracted when energized, and is in a relaxed state when not energized, and cannot be restored to its original state, so that the resilient arm 4132 is provided to have a restoring action. The elastic arms 4132 are arranged in a serpentine shape which is bent for multiple times, so that the elasticity of the elastic arms 4132 is improved, and when the Z-axis SMA drive assembly 42 is electrified and contracted, the elastic arms 4132 have better elasticity, so that the movement obstruction of the Z-axis SMA drive assembly 42 is less influenced; the resilient arms 4132 are preferably resilient to allow them to relatively quickly rotationally reset the Z-axis rotary base 41 when the Z-axis SMA drive assembly 42 is de-energized.

In some embodiments of the invention, the hole wall of the circular hole 33 is provided with a limiting groove 331, the rotating member 413 is provided with a limiting block 4133, the limiting block 4133 is matched with the limiting groove 331, and the width of the limiting groove 331 is greater than that of the limiting block 4133.

Referring to fig. 3, a limit block 4133 is disposed on the rotating member 413 along the circumferential direction of the rotating table 4111, and the limit block 4133 extends into the limit groove 331 of the circular hole 33 and cooperates with the limit groove 331 to perform a limiting function. Specifically, when the Z-axis rotating base 41 is shaken in the X-axis direction or the Y-axis direction by an external force, the cooperation of the limiting groove 331 and the limiting block 4133 can limit the shaking range within a certain range, so as to prevent the SMA wire in the Z-axis SMA driving assembly 42 from being broken due to an excessively large shaking range.

Referring to fig. 8, in some embodiments of the present invention, the rotating member 413 includes a rotating arm 45 and a rotating frame 44, the rotating frame 44 is fixedly disposed on the outer bottom surface of the rotating table 4111, the rotating frame 44 is provided with a plurality of supporting legs, each of the supporting legs abuts against the protrusion 43, and the resilient arm 4132 is integrally formed with the rotating frame 44; the rotating arm 45 is fixedly attached to the bottom surface of the rotating frame 44, and the V-shaped connecting sheet is fixedly arranged at the center of the bottom of the rotating arm 45. Through so setting up, can simplify processing assembly flow, improve production efficiency.

In some embodiments of the present invention, the X-axis flipping board 21 and the base board 1 are movably connected by a pair of connecting balls 51; the Y-axis flipping plate 31 and the X-axis flipping plate 21 are also movably connected by a pair of connecting balls 51.

In some embodiments of the present invention, the present invention further comprises an upper connection portion 52a and a lower connection portion 52c, the upper connection portion 52a and the lower connection portion 52c are disposed opposite to each other, the opposite sides of the upper connection portion 52a and the lower connection portion 52c are both provided with a connection groove, and the connection ball 51 is rotatably disposed between the two connection grooves of the upper connection portion 52a and the lower connection portion 52 c; the upper connection part 52a, the lower connection part 52c and the connection balls constitute an adapter structure 52, wherein two sets of adapter structures 52 are arranged between the base plate 1 and the X-axis flipping plate 21, one of the base plate 1 and the X-axis flipping plate 21 is fixedly connected with the connection balls 51, and the other is fixedly connected with the upper connection part 52a and the lower connection part 52 c.

When the connecting balls 51 are disposed outside the frame shape of the X-axis inverter plate 21, the upper transfer portion 52a and the lower transfer portion 52c are disposed inside the frame shape of the substrate 1; when the connection balls 51 are disposed on the frame-shaped inner edge of the substrate 1, the upper connection portion 52a and the lower connection portion 52c are disposed on the frame-shaped outer edge of the X-axis flipping plate 21. In the following embodiments, the upper and

lower contact portions

52a and 52c are provided on the frame-shaped inner edge of the substrate 1, and the connecting balls 51 are provided on the frame-shaped inner edge of the X-axis inverter plate 21. The connecting balls 51 are arranged in such a way, so that the rotation resistance of the X-axis turnover plate 21 relative to the base plate 1 can be reduced, and the X-axis turnover plate 21 can rotate more smoothly; the connection balls 51 are rotatably disposed between the upper connection portion 52a and the lower connection portion 52c, so that the X-axis flipping plate 21 can receive a sufficient supporting force, and the stability of the X-axis flipping plate 21 in rotation can be improved.

It should be understood that, in order to realize the rotational connection between the Y-axis flipping plate 31 and the X-axis flipping plate 21, two sets of adapting structures 52 are also arranged between the X-axis flipping plate 21 and the Y-axis flipping plate 31; one of the X-axis flipping plate 21 and the Y-axis flipping plate 31 is fixedly connected to the connecting ball 51, and the other is fixedly connected to the upper connecting portion 52a and the lower connecting portion 52 c. Specifically, when the connection balls 51 are disposed outside the Y-axis flipping plate 31, the upper connection portion 52a and the lower connection portion 52c are disposed inside the frame shape of the X-axis flipping plate 21; when the connecting balls 51 are disposed on the inner side of the frame shape of the X-axis flipping plate 21, the upper connection portion 52a and the lower connection portion 52c are disposed on the outer side of the Y-axis flipping plate 31.

Referring to fig. 10, the distance between the groove bottoms of the transfer grooves of the upper and

lower transfer portions

52a and 52c is equal to the diameter of the connection ball 51, and the movement of the connection ball 51 in the vertical direction can be restricted; the groove walls of the transfer groove except the groove bottom have a gap with the connecting ball 51, so that the connecting ball 51 can move slightly left and right, the friction between the connecting ball 51 and the transfer groove when rotating is reduced, and the connecting ball 51 is prevented from being locked between the upper transfer part 52a and the lower transfer part 52c and being incapable of moving.

The rotation and movement control of the X-axis turnover plate 21 and the Y-axis turnover plate 31 can be controlled within a certain range by arranging the upper connection part 52a and the lower connection part 52c, and the phenomenon that the SMA wire is broken or collided with other components due to overlarge turnover angle caused by external force is prevented.

Still other embodiments of the invention are described with particular reference to fig. 9. As shown in fig. 9, the base plate 1, the X-axis flipping plate 21 and the Y-axis flipping plate 31 are all composite plate structures, and the composite plate structure includes an upper plate a, a middle plate b and a lower plate c, that is: the base plate 1 includes a first upper plate a1, a first middle plate b1, and a first lower plate c1, the X-axis flipping plate 21 includes a second upper plate a2, a second middle plate b2, and a second lower plate c2, and the Y-axis flipping plate 31 includes a third upper plate a3, a third middle plate b3, and a third lower plate c 3. Set base plate 1, X axle returning face plate 21 and Y axle returning face plate 31 to the composite sheet, metal material is chooseed for use to upper strata board a and lower floor's board c, can improve the structural strength of panel, prevents to produce panel deformation and then lead to connecting ball 51 to rotate the problem that is not smooth and easy after installing other components on Z axle roating seat 41. Before assembly, the upper plate a, the middle plate b and the lower plate c are bonded together after being processed respectively, so that the assembly efficiency is greatly improved, and the assembly cost is reduced.

The first upper plate a1, the second upper plate a2 and the third upper plate a3 are formed by punching and cutting a whole metal plate, and the first lower plate c1, the second lower plate c2 and the third lower plate c3 are also formed by punching and cutting a whole metal plate. Referring to fig. 9, the upper junction 52a of the base plate 1 is integrally formed by press-cutting the first upper plate a1, the lower junction 52c is integrally formed by press-cutting the first lower plate c1, the upper junction 52a of the X-axis inverter plate 21 is integrally formed by press-cutting the second upper plate a2, and the lower junction 52c is integrally formed by press-cutting the second lower plate c 2. The assembly precision can be ensured by adopting one-step stamping and cutting forming, so that the base plate 1, the X-axis turnover plate 21 and the Y-axis turnover plate 31 can move smoothly. Further, a semicircular groove 52b is provided on the middle laminate a between the upper junction 52a and the lower junction 52c, and specifically, the semicircular groove 52b is opened on the first middle laminate b1 and the second middle laminate b2, as shown in fig. 9 and 10. The radius of the semicircular groove 52b is larger than that of the connecting ball 51, the circle center of the semicircular groove coincides with the sphere center of the connecting ball 51, the semicircular groove is formed in the middle layer plate b, so that the connecting ball 51 can slightly move left and right, the moving range of the connecting ball 51 is controlled, and the SMA wire is prevented from being broken due to the overlarge moving range of the connecting ball 51.

In some embodiments of the present invention, the X-axis SMA drive assembly 22 includes two first common terminals 223, two first control terminals 222 and two X-axis SMA wires 221, the first common terminal 223 is disposed on the X-axis flipping plate 21 and located at a rotational connection position of the X-axis flipping plate 21 and the substrate 1, the first control terminals 222 are disposed on the substrate 1 and located at two sides of the first common terminal 223, and the first control terminals 222 are connected to the first common terminal 221 through the X-axis SMA wires.

It will be appreciated that the Y-axis SMA drive assembly 32 is arranged in the same manner as the X-axis SMA drive assembly 22, namely: the Y-axis SMA driving assembly comprises a second common end 323, a second control end 322 and Y-axis SMA wires 321, the second common end 323 is arranged on the Y-axis turnover plate 31 and is located at the rotary connection position of the Y-axis turnover plate 31 and the X-axis turnover plate 21, the number of the second control ends 322 is two, the second control ends 322 are arranged on the X-axis turnover plate 21 and are located on two sides of the second common end 323, and the second control ends 322 are all connected with the second common end 323 through the Y-axis SMA wires 321.

Specifically, a plurality of X-axis SMA drive assemblies 22 and Y-axis SMA drive assemblies 32 may each be provided. For example, as shown in fig. 3, two X-axis SMA drive assemblies 22 are provided, and the two X-axis SMA drive assemblies 22 are located on one side of the X-axis flipping plate 21 and are symmetrically arranged on the upper surface and the lower surface of the X-axis flipping plate 21 and the base plate 1; two Y-axis SMA drive assemblies 32 are also provided and are symmetrically provided on the upper and lower surfaces of the Y-axis flipping plate 31 and the X-axis flipping plate 21.

Referring to fig. 4, when the X-axis flip plate 21 needs to rotate relative to the substrate 1, the first common end 223 and the first control end 222 at two ends of one X-axis SMA wire 221 are used to energize the X-axis SMA wire 221, that is, the

sections

221a and 221c of the X-axis SMA wire 221 are energized and contracted at the same time, and the

sections

221b and 221d are kept in a relaxed state without electrical signals, and the X-axis flip plate 21 is flipped in a counterclockwise direction relative to the substrate 1; the

segments

221b and 221d of the X-axis SMA wire 221 are energized simultaneously to contract, and the

segments

221a and 221c are maintained in a relaxed state without an electric signal, and the X-axis inverter plate 21 is inverted clockwise with respect to the base plate 1. Similarly, referring to fig. 5, when the Y-axis flipping board 31 needs to rotate relative to the X-axis flipping board 21, the

sections

321a and 321c of the Y-axis SMA wire 321 may be simultaneously electrified and contracted, or the

sections

321b and 321d of the Y-axis SMA wire 321 may be simultaneously electrified and contracted, so that the Y-axis flipping board 31 may be flipped counterclockwise or clockwise relative to the X-axis flipping board 21, thereby achieving the anti-shake purpose.

It should be understood that there is a second arrangement of the X-axis and Y-axis

SMA drive assemblies

22 and 32 as shown in fig. 6. The X-axis SMA drive assemblies 22 are provided in groups of four, two each; the first common ends 223 of one group of the X-axis SMA drive assemblies 22 are symmetrically arranged at two rotating joints on the upper surface of the X-axis flipping board 21, and the first control ends 222 are symmetrically arranged at corresponding positions of the substrate 1; the other group of X-axis SMA drive assemblies 22 are symmetrically arranged on the lower surfaces of the X-axis overturning plate 21 and the base plate 1. The Y-axis SMA drive assemblies 32 are also provided with four, one set for each; the second common end 323 of one group of Y-axis SMA drive assemblies 32 is symmetrically arranged at two rotary joints on the upper surface of the Y-axis flipping plate 31, and the second control end 322 is symmetrically arranged at the corresponding position of the Y-axis flipping plate 31; the other set of Y-axis SMA drive assemblies 32 are symmetrically arranged on the lower surfaces of the X-axis flipping plate 21 and the Y-axis flipping plate 31.

The camera module according to the second aspect of the present invention includes the micro optical anti-shake module. Referring to fig. 11, the camera module 6 is disposed in the Z-axis rotating base 41 on the micro optical anti-shake module, so that the micro optical anti-shake module can drive the camera module 6 to perform X, Y, Z axial upward movements to achieve an anti-shake effect, and the driving force is large and rapid to adjust, so that the camera module 6 has a better optical anti-shake performance.

The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge of those skilled in the art without departing from the novel spirit of the present invention.

Claims

1. Miniature optics anti-shake module, its characterized in that includes:

a substrate provided with a frame-shaped hollow portion;

2. The micro optical anti-shake module of claim 1, wherein: a circular hole is formed in the center of the Y-axis turnover plate; z axle roating seat includes that rotating member and center are equipped with the backup pad of revolving stage, the backup pad with Y axle returning face plate upper surface contact, the revolving stage set up in the round hole, the rotating member fixed set up in revolving stage outside bottom surface and with Y axle returning face plate lower surface contact, Z axle SMA drive assembly set up in just connect the rotating member on the bottom surface of Y axle returning face plate.

3. The micro optical anti-shake module of claim 2, wherein: the Y-axis turnover plate is characterized in that bulges are arranged on the upper surface and the lower surface of the Y-axis turnover plate, the bulges surround the round holes, the bottom surface of the supporting plate is abutted to the bulges on the upper surface of the Y-axis turnover plate, and the rotating piece is abutted to the bulges on the lower surface of the Y-axis turnover plate.

4. The micro optical anti-shake module of claim 2, wherein: the Z-axis SMA driving assemblies are provided with four groups, and each Z-axis SMA driving assembly comprises a connecting plate and a Z-axis SMA wire; the middle of the bottom surface of the rotating part is provided with two V-shaped connecting pieces, two ends of each V-shaped connecting piece form two connecting lugs, openings of the two V-shaped connecting pieces are arranged in a back-to-back mode, the connecting plates are arranged on the bottom surface of the Y-axis overturning plate, and each group of Z-axis SMA driving assemblies is provided with one connecting lug, and the connecting plates are connected to one of the connecting lugs through Z-axis SMA wires.

5. The micro optical anti-shake module of claim 2, wherein: the rotating piece comprises an elastic arm, and one end of the elastic arm is connected with the Y-axis turnover plate.

6. The micro optical anti-shake module of claim 2, wherein: the pore wall of round hole is provided with the spacing groove, be provided with the stopper on the rotating member, the stopper with the spacing groove cooperation, the width of spacing groove is greater than the stopper width.

7. The micro optical anti-shake module of claim 1, wherein: the X-axis turnover plate is movably connected with the base plate through a pair of connecting balls.

8. The micro optical anti-shake module of claim 7, wherein: the connecting ball is rotatably arranged between the two rotating grooves of the upper rotating part and the lower rotating part; go up the switching portion under the switching portion with connect the ball and constitute switching structure, wherein two sets of switching structure set up in the base plate with between the X axle returning face plate, the base plate with in the X axle returning face plate its one with connect ball fixed connection, another with go up the switching portion with under switching portion fixed connection.

9. The micro optical anti-shake module of claim 1, wherein: x axle SMA drive assembly includes first common port, first control end and X axle SMA line, first common port set up in on the X axle returning face plate, and be located the X axle returning face plate with the rotation junction of base plate, first control end has two, first control end set up in on the base plate and be located the both sides of first common port, first control end all passes through X axle SMA line connection first common port.

10. The utility model provides a camera module which characterized in that: comprising a micro-optic anti-shake module according to any of claims 1 to 9.