CN114721107A

CN114721107A - Optical element driving device, image pickup device, and mobile terminal

Info

Publication number: CN114721107A
Application number: CN202210529377.0A
Authority: CN
Inventors: 王建华; 张晓良; 孔令宏
Original assignee: Shanghai Xinmai Electronic Technology Co ltd
Current assignee: Shanghai Xinmai Electronic Technology Co ltd
Priority date: 2022-05-16
Filing date: 2022-05-16
Publication date: 2022-07-08
Also published as: WO2023221336A1

Abstract

The invention provides an optical element driving device, an image pickup device and a mobile terminal. The optical element driving device includes: a housing; the shell is covered on the base and forms an accommodating space with the base; the bearing seat is movably arranged in the accommodating space; the deflector rod assembly, at least one part of the deflector rod assembly is rotatably arranged on the base, and the deflector rod assembly is in driving connection with the bearing seat; the driving assembly is in driving connection with the deflector rod assembly; a magnet; one of the magnet and the magnetic absorption plate is arranged on the side wall of the bearing seat which is not connected with the deflector rod assembly, and the other magnet and the magnetic absorption plate are oppositely arranged on the inner side wall of the shell or the base; when the driving assembly is powered on, at least one part of the driving assembly moves relative to the base and drives the deflector rod assembly to rotate relative to the base so as to drive the bearing seat to move in a direction close to or far away from the base. The invention solves the problem of poor use performance of the driving device of the camera shooting device in the prior art.

Description

Optical element driving device, image pickup device, and mobile terminal

Technical Field

The present invention relates to the field of imaging devices, and in particular, to an optical element driving device, an imaging device, and a mobile terminal.

Background

A video camera or a still camera usually employs a lens with adjustable focal length or automatic focusing, and the adjustment process is to change the position of the lens or an image sensor, and a driving motor is usually used for driving the lens and the image sensor to move. At present, the automatic focusing of a camera head of a handheld camera device, especially a mobile phone, is basically completed by using a Voice Coil Motor (VCM), which is a system composed of a Coil and a magnet. The coil after being electrified is subjected to electromagnetic force in a magnetic field, the winding carrier is driven to linearly move along the optical axis direction (namely Z axis) of the lens under the action of the electromagnetic force, and the winding carrier finally stays at a position point when the resultant force of the electromagnetic force generated between the annular coil and the driving magnet and the elastic force of the upper spring and the lower spring reaches a phase equilibrium state.

Although the voice coil motor has the advantages of mature technology, low cost, low noise and the like, along with the increase of the requirement of the camera device on the camera shooting, the voice coil motor has the problems of magnetic interference, insufficient thrust and unstable structure and performance. For example: the double-shooting motor is developed and applied to various middle-high-end mobile phones, but certain puzzlement difficulty exists in the practical application process, particularly, a certain degree of magnetic interference phenomenon exists between two double-shooting motors, the normal performance of the effect of the double-shooting motors is influenced, the defect cannot be avoided by the voice coil motor, and meanwhile, various improvement schemes are easy to cause the complex structure of the motor and the improvement of the difficulty of the assembly process; electric conduction and connection assembly among all parts in the voice coil motor are realized through modes such as welding, hot riveting, point gluing, coil circular telegram needs to be through last/lower spring intercommunication simultaneously, the route that leads to coil circular telegram is longer, because voice coil motor part number is more, need welding, hot riveting, point gluing department is more, when the cell-phone is in case receiving external force such as falling the striking, the motor is because external force vibrates and leads to inside welding point or point gluing department to pull phenomenon such as drop or spring deformation easily, the inside electric property of final motor and integrated configuration receive destruction, influence the performance of motor normal performance, bring unfavorable consequence for the shooting effect.

Therefore, the driving device of the imaging device in the prior art has the problem of poor usability.

Disclosure of Invention

The invention mainly aims to provide an optical element driving device, an image pickup device and a mobile terminal, so as to solve the problem that the driving device of the image pickup device in the prior art is poor in use performance.

In order to achieve the above object, according to one aspect of the present invention, there is provided an optical element driving device including: a housing; the shell is covered on the base and forms an accommodating space with the base; the bearing seat is movably arranged in the accommodating space; the deflector rod assembly, at least one part of the deflector rod assembly is rotatably arranged on the base, and the deflector rod assembly is in driving connection with the bearing seat; the driving assembly is in driving connection with the deflector rod assembly; a magnet; one of the magnet and the magnetic absorption plate is arranged on the side wall of the bearing seat which is not connected with the deflector rod assembly, and the other magnet and the magnetic absorption plate are oppositely arranged on the inner side wall of the shell or the base; when the driving assembly is powered on, at least one part of the driving assembly moves relative to the base and drives the deflector rod assembly to rotate relative to the base so as to drive the bearing seat to move in a direction close to or far away from the base.

Furthermore, the deflector rod assembly comprises at least two rod bodies which are symmetrically arranged about the center of the bearing seat, the rod bodies are in driving connection with the bearing seat, the two ends of each rod body are respectively a connecting end and a movable end, and the connecting ends of the rod bodies are movably connected with the base, so that the rod bodies can rotate relative to the base.

Furthermore, two body of rod correspond and set up on a set of side that is parallel to each other of base.

Furthermore, one of the side walls of the rod body corresponding to the bearing seat in the length direction of the rod body is provided with a driving protrusion, the other side wall of the rod body is provided with a driving groove, the extending direction of the driving groove is the same as the length direction of the rod body, the driving protrusion extends into the driving groove, and when the rod body rotates relative to the base, the driving protrusion moves along the driving groove.

Further, the body of rod has the drive groove, bears the seat and has the drive arch, and bears the seat and have the mounting groove that extends along the length direction of the body of rod or a plurality of mounting holes that set up along the length direction interval of the body of rod on corresponding the lateral wall of the body of rod, and the bellied one end of drive is fixed to be set up in the mounting groove or detachably sets up on any one mounting hole in a plurality of mounting holes.

Furthermore, the deflector rod assembly further comprises a plurality of rotating shafts, the rotating shafts correspond to the rod bodies one to one, and the connecting ends of the rod bodies are movably connected with the base through the rotating shafts.

Further, the drive assembly includes: a plurality of first filaments; the second silk threads are multiple, and each rod body corresponds to at least one first silk thread and at least one second silk thread respectively; at least one part of the FPC board is arranged in the accommodating space, the first end of the first silk thread and the first end of the second silk thread are respectively connected with the connecting end of the rod body, and the second end of the first silk thread and the second end of the second silk thread extend towards the length direction of the rod body and are connected with the FPC board.

Furthermore, the first silk thread is arranged on one side of the rod body far away from the base, and the second silk thread is arranged on one side of the rod body close to the base; or the first and second wires are arranged crosswise.

Further, when one of the first and second wires is in the energized state, the other is in the de-energized state.

Further, when the first wire is electrified, the rotation direction of the rod body is opposite to the rotation direction of the rod body when the second wire is electrified.

Further, the optical element driving device further comprises a plurality of clamping heads, and the first wire and the second wire are respectively connected with the FPC board through different clamping heads.

Furthermore, the base is provided with a mounting column corresponding to the connecting end and the movable end of the rod body respectively, the connecting end of the rod body is movably connected with the mounting column, and the chuck is arranged on the mounting column corresponding to the movable end of the rod body.

Furthermore, the mounting column corresponding to the movable end of one of the rod bodies is connected with the mounting column corresponding to the connecting end of the other rod body through a mounting wall, the magnet is arranged on the mounting wall, and the magnetic absorption plate is arranged on the bearing seat corresponding to the magnet.

Furthermore, optical element drive arrangement still includes a plurality of balls, and two erection columns of erection wall connection are provided with a first mounting groove respectively towards one side of bearing the seat, and the extending direction of first mounting groove is parallel with the motion path who bears the seat, is provided with at least one ball in every first mounting groove, bears the seat and is provided with the second mounting groove corresponding to first mounting groove.

Further, optical element drive arrangement still includes the preforming, and the preforming setting is kept away from one side of base and is connected with the erection column at bearing the seat, for bearing the seat and providing the reset force towards the base motion.

Further, the optical element driving device further includes: the lower spring is arranged on one side of the base, which faces the bearing seat; the upper spring is arranged on one side, far away from the lower spring, of the bearing seat and is connected with the mounting column, and the bearing seat is respectively abutted against the lower spring and the upper spring, so that the bearing seat is suspended in the accommodating space.

According to another aspect of the present invention, there is provided an image pickup apparatus including the optical element driving apparatus described above.

According to another aspect of the present invention, there is provided a mobile terminal including the above-described image pickup device.

By applying the technical scheme of the invention, the optical element driving device comprises a shell, a base, a bearing seat, a deflector rod assembly, a driving assembly, a magnet and a magnetic absorption plate. The shell is covered on the base and forms an accommodating space with the base; the bearing seat is movably arranged in the accommodating space; at least one part of the deflector rod assembly is rotatably arranged on the base, and the deflector rod assembly is in driving connection with the bearing seat; the driving assembly is in driving connection with the deflector rod assembly; one of the magnet and the magnetism absorption plate is arranged on the side wall of the bearing seat which is not connected with the deflector rod assembly, and the other one is oppositely arranged on the inner side wall of the shell or the base; when the driving assembly is powered on, at least one part of the driving assembly moves relative to the base and drives the deflector rod assembly to rotate relative to the base so as to drive the bearing seat to move in a direction close to or far away from the base.

When using the optical element drive arrangement in this application, install the optical element in the module of will making a video recording on bearing the seat, because the driving lever subassembly rotationally sets up on the base and the driving lever subassembly with bear the seat drive and be connected, so when the relative base of driving lever subassembly rotates, can drive and bear the seat along the direction motion of being close to relatively or keeping away from the base to realize AF drive and realize the focusing function. In addition, the driving assembly is in driving connection with the shifting rod assembly, so that the shifting rod assembly can be driven to move relative to the base after the driving assembly is electrified. Meanwhile, in the process of moving the bearing seat relative to the base, due to the mutual attraction of the magnet and the magnetic absorption plate, the bearing seat can be ensured not to incline in the moving process, so that the optical axis of the optical element can be ensured not to incline, and the stability of the optical element driving device is ensured. That is, in the present application, the driving coil and the driving magnet portion of the conventional voice coil motor are replaced by the lever assembly and the driving assembly of the optical element driving apparatus. In addition, since the structure of the spring and the like which are matched with the driving magnet and the driving coil is not needed, the optical element driving device in the application is simpler than the structure of the existing voice coil motor. In addition, the optical element driving device in the application has no magnetic circuit design problem, and the average thrust of the whole stroke is larger than that of an electromagnetic mode, so that the driving device is more efficient compared with the existing voice coil motor. And, there is not the upper and lower spring design of voice coil motor, falls and test such as cylinder and does not have spring deformation, nickel or foreign matter dropout problem. Therefore, the optical element driving device in the application effectively solves the problem that the driving device of the image pickup device in the prior art is poor in service performance.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:

fig. 1 shows an exploded view of an optical element driving apparatus according to an embodiment of the present invention;

fig. 2 is a schematic diagram illustrating a position relationship among a base, a rod and a driving assembly of the optical element driving apparatus in fig. 1;

FIG. 3 is a schematic view showing a positional relationship among a mounting wall, a magnet, and a magnetic attracting plate of the optical element driving device shown in FIG. 1;

fig. 4 is a schematic view showing an internal structure of the optical element driving apparatus of fig. 1;

fig. 5 is a schematic diagram illustrating a positional relationship among the base, the rod, the first wire, and the second wire of the optical element driving apparatus in fig. 1.

Wherein the figures include the following reference numerals:

10. a housing; 20. a base; 21. an avoidance groove; 22. mounting a column; 221. a first mounting groove; 23. a mounting wall; 30. a bearing seat; 31. mounting holes; 32. a second mounting groove; 40. a deflector rod assembly; 41. a rod body; 411. a connecting end; 412. a movable end; 42. a rotating shaft; 50. a drive assembly; 51. a first wire; 52. a second wire; 53. an FPC board; 531. a first connection section; 532. a second connection section; 533. a third connection section; 534. a claw; 60. a drive boss; 70. a drive slot; 80. a chuck; 90. a ball bearing; 100. tabletting; 200. a magnet; 300. a magnetic attraction plate; 400. and (5) a lens.

Detailed Description

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present invention will be described in detail below with reference to the embodiments with reference to the attached drawings.

It is noted that, unless otherwise indicated, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs.

In the present invention, unless specified to the contrary, use of the terms of orientation such as "upper, lower, top, bottom" or the like, generally refer to the orientation as shown in the drawings, or to the component itself in a vertical, perpendicular, or gravitational orientation; likewise, for ease of understanding and description, "inner and outer" refer to the inner and outer relative to the profile of the components themselves, but the above directional words are not intended to limit the invention.

In order to solve the problem that a driving device of an image pickup device in the prior art is poor in service performance, the application provides an optical element driving device, an image pickup device and a mobile terminal.

Note that the mobile terminal in the present application has an image pickup device, and the image pickup device in the present application has an optical element driving device described below.

As shown in fig. 1 to 5, the optical element driving apparatus of the present application includes a housing 10, a base 20, a carrier 30, a lever assembly 40, a driving assembly 50, a magnet 200, and a magnetic attraction plate 300. The housing 10 is covered on the base 20 and forms an accommodating space with the base 20; the bearing seat 30 is movably arranged in the accommodating space; at least one part of the deflector rod assembly 40 is rotatably arranged on the base 20, and the deflector rod assembly 40 is in driving connection with the bearing seat 30; the driving assembly 50 is in driving connection with the shifting lever assembly 40; one of the magnet 200 and the magnetic absorption plate 300 is arranged on the side wall of the bearing seat which is not connected with the deflector rod assembly, and the other one is oppositely arranged on the inner side wall of the shell or the base; when the driving assembly 50 is powered on, at least a portion of the driving assembly 50 moves relative to the base 20, and the driving lever assembly 40 rotates relative to the base 20 to drive the carrier 30 to move in a direction approaching or moving away from the base 20.

When the optical element driving device in the application is used, the optical element in the camera module is installed on the bearing seat 30, and the deflector rod assembly 40 is rotatably arranged on the base 20 and the deflector rod assembly 40 is in driving connection with the bearing seat 30, so that when the deflector rod assembly 40 rotates relative to the base 20, the bearing seat 30 can be driven to move along the direction relatively close to or far away from the base 20, and the AF driving and focusing functions are realized. Moreover, in the present application, since the driving assembly 50 is drivingly connected to the shift lever assembly 40, the shift lever assembly 40 can be driven to move relative to the base 20 after the driving assembly 50 is powered on. Meanwhile, in the process of the movement of the bearing seat 30 relative to the base 20, due to the mutual attraction of the magnet 200 and the magnetic absorption plate 300, the bearing seat 30 can be ensured not to deflect in the movement process, so that the optical axis of the optical element can be ensured not to deflect, and the stability of the optical element driving device is ensured. That is, in the present application, the driving coil and the driving magnet portion of the conventional voice coil motor are replaced by the lever assembly 40 and the driving assembly 50 of the optical element driving apparatus. In addition, since the structure of the spring and the like which are matched with the driving magnet and the driving coil is not needed, the optical element driving device in the application is simpler than the structure of the existing voice coil motor. And, the optical element drive arrangement in this application does not have the magnetic circuit design problem, and whole stroke dynamics average thrust is great than the electromagnetism mode, consequently compares more efficient with current voice coil motor. And, there is not the upper and lower spring design of voice coil motor, falls and test such as cylinder and does not have spring deformation, nickel or foreign matter dropout problem. Therefore, the optical element driving device in the application effectively solves the problem that the driving device of the image pickup device in the prior art is poor in service performance.

It should be noted that the optical element in the above description is generally referred to as a lens or an image sensor. When the optical element is the lens 400 in this application, the housing 10 and the base 20 each have an opening structure for avoiding the lens of the mobile terminal.

In an embodiment of the present application, the lever assembly 40 includes at least two rods 41 symmetrically disposed about the center of the carrier 30, the rods 41 are drivingly connected to the carrier 30, and two ends of the rods 41 are a connecting end 411 and a movable end 412, respectively, the connecting end 411 of the rods 41 is movably connected to the base 20, so that the rods 41 can rotate relative to the base 20. That is, the movement of the carrier 30 in this embodiment is realized by the rotation of the two rods 41. Moreover, it should be noted that, when the two rod bodies 41 drive the carrying seat 30 to move relative to the base 20, the rotation angles of the two rod bodies 41 need to be kept consistent, so as to ensure that the carrying seat 30 does not deflect relative to the base 20 in the moving process.

Moreover, it should be noted that the carrier 30 described in this application moves in a direction approaching or moving away from the base 20, and the direction may also be in the Z-axis direction.

Alternatively, the two rods 41 are correspondingly disposed on a set of mutually parallel sides of the base 20. By such an arrangement, the internal structure of the optical element driving device can be ensured to be more compact, and the stability of the carrier 30 during the movement relative to the base 20 can also be ensured.

Of course, although the above-mentioned embodiment proposes that the carrier 30 is driven by the rotation of the two rods 41 symmetrically disposed about the center of the carrier 30, the number of the rods 41 can be increased according to the actual use situation or the requirement of the driving force, so as to increase the driving force of the lever assembly 40 on the carrier 30.

That is, the base 20 is generally quadrilateral in shape in the present application, and when the lever assembly 40 includes only two rods 41 disposed in central symmetry, the two rods 41 are disposed on a set of opposite and parallel sides of the base 20. When the driving force for the carrier 30 needs to be increased, two rods 41 symmetrically disposed at the center can be added on the other set of opposite and parallel sides of the base 20 to drive the carrier 30, so as to increase the driving force of the shift lever assembly 40 on the carrier 30.

Of course, the base 20 can be configured in other shapes according to the actual application requirements.

Optionally, one of the side walls of the body 41 and the carrier 30 corresponding to the body 41 has a driving protrusion 60, the other has a driving groove 70, the driving groove 70 extends in the same direction as the body 41, the driving protrusion 60 extends into the driving groove 70, and when the body 41 rotates relative to the base 20, the driving protrusion 60 moves along the driving groove 70.

Optionally, the rod 41 has a driving groove 70, the carrying seat 30 has a driving protrusion 60, and the side wall of the carrying seat 30 corresponding to the rod 41 has a mounting groove extending along the length direction of the rod or a plurality of mounting holes 31 arranged at intervals along the length direction of the rod 41, and one end of the driving protrusion 60 is fixedly arranged in the mounting groove or detachably arranged on any one mounting hole 31 of the plurality of mounting holes 31. That is, the portion of the carrier 30 carrying the optical element and the driving protrusion 60 may be provided separately from each other in the present application.

In an embodiment of the present application, only one driving protrusion 60 is disposed on one side of the carrier 30 corresponding to each rod 41, and after the mounting hole 31 where the driving protrusion 60 is located is determined, the driving protrusion 60 can not be detached from the mounting hole 31, so as to ensure stability between the carrier 30 and the rod 41. It should be noted that, the purpose of the plurality of mounting holes 31 in the present application is mainly to adjust the sensitivity of the rod 41 to the driving of the carrier 30, so that after the mounting hole 31 where the driving protrusion 60 is located is determined, the connection position of the driving protrusion 60 and the rod 41 is also determined, and further, the sensitivity of the rod 41 to drive the carrier 30 is determined.

Preferably, the shifter lever assembly 40 further comprises a plurality of rotating shafts 42, the rotating shafts 42 correspond to the rod bodies 41 one by one, and the connecting end 411 of the rod body 41 is movably connected to the base 20 through the rotating shafts 42. By such an arrangement, the lever body 41 can be ensured to rotate relative to the base 20 more flexibly.

In one particular embodiment of the present application, the drive assembly 50 includes: a plurality of first wires 51, the first wires 51 being provided; a plurality of second threads 52, wherein each rod body 41 corresponds to at least one first thread 51 and at least one second thread 52; at least a portion of the FPC board 53 is disposed in the accommodating space, a first end of the first wire 51 and a first end of the second wire 52 are connected to the connecting end 411 of the rod 41, and a second end of the first wire 51 and a second end of the second wire 52 extend toward the length direction of the rod 41 and are connected to the FPC board 53. The first wire 51 is disposed on a side of the lever 41 away from the base 20, and the second wire 52 is disposed on a side of the lever 41 close to the base 20. Meanwhile, in the present embodiment, when one of the first and

second wires

51 and 52 is in the energized state, the other is in the de-energized state. And, when the first wire 51 is energized, the rotation direction of the lever body 41 is opposite to that of the lever body 41 when the second wire 52 is energized. With this arrangement, when the first wire 51 is energized, the rod body 41 rotates under the action of the first wire 51 and rotates in a direction that the movable end 412 of the rod body 41 moves in a direction close to the base 20, thereby driving the carrier block to move in a direction close to the base 20, and when the second wire 52 is energized, the rod body 41 rotates under the action of the second wire 52 and rotates in a direction that the movable end 412 of the rod body 41 moves in a direction away from the base 20, thereby driving the carrier block to move in a direction away from the base 20. Therefore, in the present application, AF driving of the optical element driving device can be achieved by controlling energization of the first and

second wires

51 and 52.

Of course, in the present application, for the way the first wire 51 and the second wire 52 are mounted, the first wire 51 and the second wire 52 can also be arranged crosswise.

Note that, when neither the first wire 51 nor the second wire 52 is energized, both the first wire 51 and the second wire 52 may be arranged parallel to the rod body 41. Of course, the first wire 51 and the rod 41 and the second wire 52 and the rod 41 may be disposed at an angle.

Preferably, the optical element driving device further includes a plurality of clips 80, and the first wire 51 and the second wire 52 are connected to the FPC board 53 through different clips 80, respectively. Also, in one embodiment of the present application, the clip 80 is connected to the FPC board 53 by soldering.

Specifically, there are a plurality of FPC boards 53, and different FPC boards 53 correspond to different rods 41 respectively.

In one embodiment of the present application, the FPC board 53 includes a first connection section 531, a second connection section 532 and a third connection section 533, the second connection section 532 and the third connection section 533 are respectively connected to the first connection section 531, an end of the second connection section 532 away from the first connection section 531 is connected to the collet 80, an end of the third connection section 533 away from the first connection section 531 is provided with a claw 534, the claw 534 is connected to the connection end 411 of the rod 41, and the first wire 51 and the second wire 52 are respectively connected to the rod 41 through the claw 534.

Preferably, the sidewall of the base 20 has an escape groove 21 for escaping the first connecting section 531, and at least a portion of the first connecting section 531 is disposed in the escape groove 21. By such an arrangement, the overall structure of the optical element driving device can be ensured to be more compact.

Specifically, the base 20 is provided with a mounting post 22 corresponding to the connecting end 411 and the movable end 412 of the rod 41, respectively, the connecting end 411 of the rod 41 is movably connected with the mounting post 22, and the chuck 80 is disposed on the mounting post 22 corresponding to the movable end 412 of the rod 41. In one embodiment of the present application, the bottom surface of the base 20 facing the carrier 30 is a quadrilateral, and each corner of the quadrilateral is provided with one mounting post 22, each two different mounting posts 22 correspond to the connecting end 411 and the movable end 412 of one rod 41, and the mounting posts 22 are perpendicular to the surface of the base 20 on which they are located.

Specifically, the mounting post corresponding to the movable end of one of the rods is connected to the mounting post corresponding to the connecting end of the other rod through the mounting wall 23, the magnet 200 is disposed on the mounting wall 23, and the magnetic attraction plate 300 is disposed on the bearing seat corresponding to the magnet 200.

Optionally, the optical element driving apparatus further includes a plurality of balls 90, one side of each of the two mounting posts 22 connected to the mounting wall 23 facing the bearing seat 30 is provided with a first mounting groove 221, an extending direction of the first mounting groove 221 is parallel to a moving path of the bearing seat 30, at least one ball 90 is provided in each first mounting groove 221, and the bearing seat 30 is provided with a second mounting groove 32 corresponding to the first mounting groove 221. That is, the first and second mounting

grooves

221 and 32 are opposite to each other and form a space for accommodating the ball 90 therein in the present application, and at least two balls 90 may be disposed in the first mounting groove 221, so that a frictional force between the carrier 30 and the mounting post 22 can be reduced during movement of the carrier 30. The purpose of providing the first mounting grooves 221 on the two mounting posts 22 connected to the mounting wall 23 is that the bearing seat 30 will lean against the side where the connecting wall is located under the interaction of the magnet and the magnetic attraction plate during the movement of the bearing seat 30, so the first mounting grooves 221 can be provided on the two mounting posts 22 connected to the mounting wall.

In order to ensure the stability of the optical element drive, it is of course also possible in this application to provide mounting walls on the other two mounting posts, i.e. one mounting wall is provided with two mounting walls, and the two mounting walls are parallel to each other.

In the embodiment shown in fig. 1 to 5, the optical element driving apparatus further includes a pressing sheet 100, and the pressing sheet 100 is disposed on a side of the carrier 30 away from the base 20 and connected to the mounting post 22 to provide a restoring force for the carrier 30 to move toward the base 20. It should be noted that, in the present application, when the first wire 51 and the second wire 52 are in the non-energized state, a pre-tightening force may be provided to the carrier 30 by the pressing sheet 100, so that a balancing force during the movement of the carrier 30 along the Z-axis may be provided by the pressing sheet 100 after the second wire 52 is energized, and a resetting force may be provided to the carrier 30 after the second wire 52 is de-energized.

Optionally, the housing 10 is made of a plastic material.

From the above description, it can be seen that the above-described embodiments of the present invention achieve the following technical effects:

1. the problem that the driving device of the camera shooting device in the prior art is poor in use performance is effectively solved;

2. simple structure and stable performance.

It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular is intended to include the plural unless the context clearly dictates otherwise, and it should be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of features, steps, operations, devices, components, and/or combinations thereof.

It should be noted that the terms "first," "second," and the like in the description and claims of this application and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the application described herein are capable of operation in sequences other than those illustrated or described herein.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical element driving apparatus, comprising:

a housing (10);

the shell (10) is covered on the base (20) and forms an accommodating space with the base (20);

the bearing seat (30), the bearing seat (30) is movably arranged in the accommodating space;

the deflector rod assembly (40), at least one part of the deflector rod assembly (40) is rotatably arranged on the base (20), and the deflector rod assembly (40) is in driving connection with the bearing seat (30);

the driving assembly (50), the driving assembly (50) is in driving connection with the deflector rod assembly (40);

a magnet (200);

one of the magnet (200) and the magnetic absorption plate (300) is arranged on the side wall of the bearing seat (30) which is not connected with the deflector rod assembly, and the other one of the magnet (200) and the magnetic absorption plate (300) is oppositely arranged on the inner side wall of the shell (10) or the base (20);

when the driving assembly (50) is powered on, at least one part of the driving assembly (50) moves relative to the base (20) and drives the deflector rod assembly (40) to rotate relative to the base (20) so as to drive the bearing seat (30) to move in a direction close to or far away from the base (20).

2. The optical element driving apparatus according to claim 1, wherein the lever assembly (40) includes at least two rods (41) symmetrically disposed about the center of the supporting base (30), the rods (41) are drivingly connected to the supporting base (30), and two ends of the rods (41) are respectively a connecting end (411) and a moving end (412), the connecting end (411) of the rods (41) is movably connected to the base (20) so that the rods (41) can rotate relative to the base (20).

3. Optical element driving device according to claim 2, wherein two rods (41) are arranged on a set of mutually parallel sides of the base (20).

4. The optical element driving device according to claim 2, wherein one of the side walls of the shaft (41) and the carrying seat (30) has a driving protrusion (60) and the other has a driving groove (70), the driving groove (70) extends in the same direction as the length of the shaft (41), the driving protrusion (60) protrudes into the driving groove (70), and the driving protrusion (60) moves along the driving groove (70) when the shaft (41) rotates relative to the base (20).

5. The optical element driving apparatus according to claim 4, wherein the rod body (41) has the driving groove (70), the carrying seat (30) has the driving protrusion (60), and the side wall of the carrying seat (30) corresponding to the rod body (41) has a mounting groove extending along the length direction of the rod body (41) or a plurality of mounting holes (31) spaced along the length direction of the rod body (41),

one end of the driving protrusion (60) is fixedly arranged in the mounting groove or detachably arranged on any one mounting hole (31) in the plurality of mounting holes (31).

6. The optical element driving apparatus as claimed in claim 2, wherein the lever assembly (40) further comprises a plurality of rotating shafts (42), the rotating shafts (42) correspond to the rods (41) one by one, and the connecting end (411) of the rods (41) is movably connected to the base (20) through the rotating shafts (42).

7. An optical element driving device according to any one of claims 2 to 6, wherein the driving assembly (50) comprises:

a plurality of first wires (51), the first wires (51) being provided;

a plurality of second wires (52), wherein each of the second wires (52) corresponds to at least one of the first wires (51) and at least one of the second wires (52) respectively;

the FPC board (53), at least a part of FPC board (53) sets up in the accommodation space, the first end of first silk thread (51) and the first end of second silk thread (52) respectively with link (411) of body of rod (41) are connected, the second end of first silk thread (51) with the second end of second silk thread (52) respectively towards the length direction extension of body of rod (41) and with FPC board (53) are connected.

8. The optical element driving device according to claim 7,

the first silk thread (51) is arranged on one side of the rod body (41) far away from the base (20), and the second silk thread (52) is arranged on one side of the rod body (41) close to the base (20); or

The first wire (51) is arranged crosswise to the second wire (52).

9. Optical element driving device according to claim 8, characterized in that when one of the first and second wires (51, 52) is in an energized state, the other is in a de-energized state.

10. Optical element driving device according to claim 8, wherein the direction of rotation of the lever body (41) when the first wire (51) is energized is opposite to the direction of rotation of the lever body (41) when the second wire (52) is energized.

11. An optical element driving device according to claim 7, further comprising a plurality of clips (80), wherein said first wire (51) and said second wire (52) are connected to said FPC board (53) through different ones of said clips (80), respectively.

12. The optical element driving device according to claim 11, wherein the base (20) is provided with a mounting post (22) corresponding to the connecting end (411) and the movable end (412) of the rod body (41), the connecting end (411) of the rod body (41) is movably connected with the mounting post (22), and the chuck (80) is arranged on the mounting post (22) corresponding to the movable end (412) of the rod body (41).

13. The optical element driving device according to claim 12, wherein the mounting post (22) corresponding to the movable end (412) of one of the lever bodies (41) is connected to the mounting post (22) corresponding to the connecting end (411) of the other lever body (41) via a mounting wall (23), the magnet (200) is disposed on the mounting wall (23), and the magnetic attraction plate (300) is disposed on the carrier (30) corresponding to the magnet (200).

14. The optical element driving device according to claim 13, further comprising a plurality of balls (90), wherein a side of each of two mounting posts (22) connected to the mounting wall (23) facing the carrying seat (30) is provided with a first mounting groove (221), an extending direction of the first mounting groove (221) is parallel to a moving path of the carrying seat (30), at least one ball (90) is disposed in each first mounting groove (221), and a second mounting groove (32) is disposed in the carrying seat (30) corresponding to the first mounting groove (221).

15. The optical element driving device according to claim 12, further comprising a pressing plate (100), wherein the pressing plate (100) is disposed on a side of the carrying seat (30) away from the base (20) and connected to the mounting post (22) to provide a restoring force for the carrying seat (30) to move toward the base (20).

16. An image pickup apparatus comprising the optical element driving apparatus according to any one of claims 1 to 15.

17. A mobile terminal characterized in that it comprises the camera device of claim 16.