CN114815115A - Optical element driving device, image pickup device, and mobile terminal - Google Patents
Optical element driving device, image pickup device, and mobile terminal Download PDFInfo
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- CN114815115A CN114815115A CN202210530931.7A CN202210530931A CN114815115A CN 114815115 A CN114815115 A CN 114815115A CN 202210530931 A CN202210530931 A CN 202210530931A CN 114815115 A CN114815115 A CN 114815115A
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- 230000003287 optical effect Effects 0.000 title claims abstract description 60
- 238000003825 pressing Methods 0.000 claims description 6
- 230000004308 accommodation Effects 0.000 claims description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 4
- 210000000078 claw Anatomy 0.000 description 4
- 230000009471 action Effects 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000003384 imaging method Methods 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/023—Mountings, adjusting means, or light-tight connections, for optical elements for lenses permitting adjustment
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B7/00—Mountings, adjusting means, or light-tight connections, for optical elements
- G02B7/02—Mountings, adjusting means, or light-tight connections, for optical elements for lenses
- G02B7/04—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification
- G02B7/09—Mountings, adjusting means, or light-tight connections, for optical elements for lenses with mechanism for focusing or varying magnification adapted for automatic focusing or varying magnification
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- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B30/00—Camera modules comprising integrated lens units and imaging units, specially adapted for being embedded in other devices, e.g. mobile phones or vehicles
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- Optics & Photonics (AREA)
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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; the driving rod assembly is in driving connection with the driving rod assembly, and the driving rod assembly is in driving connection with the bearing seat; the driving assembly is in driving connection with the deflector rod assembly; 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 along the direction close to or far away from the base through the driving rod assembly. The invention solves the problem of poor use performance of the driving device of the camera shooting device in the prior art.
Description
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 and 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 complexity of the motor structure and the improvement of the assembly process difficulty; 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; the driving rod assembly is in driving connection with the driving rod assembly, and the driving rod assembly is in driving connection with the bearing seat; the driving assembly is in driving connection with the deflector rod assembly; 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 along the direction close to or far away from the base through the driving rod assembly.
Furthermore, the driving lever assembly comprises at least two first rod bodies which are symmetrically arranged relative to the center of the bearing seat, the first rod bodies are in driving connection with the driving rod assembly, the two ends of each first rod body are respectively provided with a connecting end and a movable end, and the connecting ends of the first rod bodies are movably connected with the base, so that the first rod bodies can rotate relative to the base.
Furthermore, the driving rod assembly comprises at least two second rod bodies which are symmetrically arranged relative to the center of the bearing seat, the second rod bodies are in one-to-one correspondence with the first rod bodies, one ends of the second rod bodies are rotatably arranged on the base and are in driving connection with the movable ends of the corresponding first rod bodies, and the other ends of the second rod bodies are in driving connection with the bearing seat.
Furthermore, the two first rod bodies are correspondingly arranged on a group of mutually parallel side edges of the base; and/or the two second rod bodies are correspondingly arranged on the other group of mutually parallel side edges of the base.
Furthermore, one of the side walls of the second rod body corresponding to the bearing seat in the length direction and the bearing seat is provided with a driving protrusion, the other side wall of the second rod body is provided with a driving groove, the extending direction of the driving groove is the same as the length direction of the second rod body, the driving protrusion extends into the driving groove, and when the second rod body rotates relative to the base, the driving protrusion moves along the driving groove.
Further, the second body of rod has the drive groove, and it is protruding to bear the seat, and bears the seat and have the mounting groove that the length direction of following the second body of rod extends or a plurality of mounting holes that set up along the length direction interval of the second body of rod on corresponding the lateral wall of the second body of rod, drives bellied one end and fixes and set up in the mounting groove or detachably sets up on arbitrary mounting hole in a plurality of mounting holes.
Furthermore, the driving lever assembly further comprises a plurality of rotating shafts, and the first rod body and the second rod body are movably connected with the base through different rotating shafts respectively.
Furthermore, one of the movable end of the first rod body and the end of the second rod body in driving connection with the first rod body is provided with a clamping protrusion, and the other end of the first rod body is provided with a clamping groove matched with the clamping protrusion.
Further, the drive assembly includes: a plurality of first filaments; the second silk thread, the second silk thread is a plurality of, and every first body of rod corresponds at least one first silk thread and at least one second silk thread FPC board respectively, and at least a part of FPC board sets up in the accommodation space, and the first end of first silk thread and the first end of second silk thread are connected with the link of the first body of rod respectively, and the second end of first silk thread and the second end of second silk thread extend towards the length direction of the first body of rod respectively and are connected with the FPC board.
Furthermore, the first silk thread is arranged on one side, far away from the base, of the first rod body, and the second silk thread is arranged on one side, close to the base, of the first rod body; 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 rotating direction of the first rod body is opposite to the rotating direction of the first 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 first rod body respectively, the connecting end of the first rod body is movably connected with the mounting column, the chuck is arranged on the mounting column corresponding to the movable end of the first rod body, and the second rod body is movably connected with the mounting column corresponding to the movable end.
Further, the mounting column corresponding to the movable end is provided with an avoiding groove for avoiding the movable end.
Furthermore, the optical element driving device further comprises a plurality of balls, one side of each mounting column, facing the bearing seat, is provided with a first mounting groove, the extending direction of the first mounting groove is parallel to the movement path of the bearing seat, at least one ball is arranged in each first mounting groove, and the bearing seat is provided with a second mounting groove corresponding to the 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.
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 rod assembly and a driving assembly. 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 component is rotatablely arranged on the base; the driving rod assembly is in driving connection with the driving rod assembly, and the driving rod assembly is in driving connection with the bearing seat; the driving assembly is in driving connection with the deflector rod assembly; 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 along the direction close to or far away from the base through the driving rod assembly.
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 is connected with the drive of actuating lever subassembly, so when the relative base of driving lever subassembly rotates, can drive the drive bar subassembly motion to drive through the drive bar subassembly and bear the seat along the direction motion of being close to relatively or keeping away from the base, thereby realize AF drive and realize the focusing function. Moreover, in the application, the driving assembly is in driving connection with the shifting rod assembly, so that the shifting rod assembly and the driving rod assembly can be driven to move relative to the base after the driving assembly is electrified. 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, the driving lever assembly and the driving assembly of the optical element driving apparatus. Meanwhile, the poking rod assembly drives the bearing seat to move through the driving rod assembly, so that the stroke of the bearing seat can be amplified through the driving rod assembly, and the large-distance movement of the bearing seat is realized. 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. Meanwhile, no magnet exists, so that the problem of magnetic interference inside or outside is avoided. 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 view showing an internal structure of the optical element driving apparatus of fig. 1;
fig. 3 is a schematic diagram illustrating a position relationship among the base, the first rod, the second rod, and the driving assembly of the optical device driving apparatus in fig. 1;
fig. 4 is a schematic diagram illustrating a positional relationship among the base, the first rod, the first wire, and the second wire of the optical element driving apparatus in fig. 1;
fig. 5 is a schematic diagram showing a positional relationship among the balls, the carrier, and the base 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; 222. avoiding the groove; 30. a bearing seat; 31. mounting holes; 32. a second mounting groove; 40. a deflector rod assembly; 41. a first 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 drive rod assembly; 210. a second rod body; 300. clamping the bulges; 400. a lens; 500. clamping the groove.
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 to be 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 stated to the contrary, the use of directional terms such as "upper, lower, top, bottom" or the like, generally refers to the orientation of the components as shown in the drawings, or to the vertical, perpendicular, or gravitational orientation of the components themselves; 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 rod assembly 200, and a driving assembly 50. 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 a portion of the toggle lever assembly 40 is rotatably disposed on the base 20; the deflector rod assembly 40 is in driving connection with the driving rod assembly 200, and the driving rod assembly 200 is in driving connection with the bearing seat 30; the driving assembly 50 is in driving connection with the shifting lever assembly 40; 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 is driven to rotate relative to the base 20, so that the driving lever assembly 200 drives the carrier 30 to move in a direction approaching to or moving away from the base 20.
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 30, because driving lever subassembly 40 rotationally sets up on base 20 and driving lever subassembly 40 is connected with the drive of actuating lever subassembly 200, so when driving lever subassembly 40 rotates for the base 20 seat, can drive actuating lever subassembly 200 and move, thereby drive bearing the seat 30 through actuating lever subassembly 200 and move along the direction of being close to relatively or keeping away from base 20, thereby realize AF drive and realize the focusing function. Moreover, in the present application, since the driving assembly 50 is drivingly connected to the lever assembly 40, the lever assembly 40 and the driving rod assembly 200 can be moved relative to the base 20 after the driving assembly 50 is powered on. 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, the driving rod assembly 200 and the driving assembly 50 of the optical element driving apparatus. Meanwhile, since the poking rod assembly 40 drives the bearing seat 30 to move through the driving rod assembly 200, the stroke of the bearing seat 30 can be enlarged through the driving rod assembly 200, and further, the large-distance movement of the bearing seat 30 is realized. 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. Meanwhile, no magnet exists, so that the problem of magnetic interference inside or outside is avoided. 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 use 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 shift lever assembly 40 includes at least two first rods 41 symmetrically disposed about the center of the carrier 30, the first rods 41 are drivingly connected to the carrier 30, and two ends of the first rods 41 are a connecting end 411 and a movable end 412 respectively, the connecting end 411 of the first rods 41 is movably connected to the base 20, so that the first rods 41 can rotate relative to the base 20. The driving rod assembly 200 includes at least two second rods 210 symmetrically disposed about the center of the bearing seat 30, the second rods 210 correspond to the first rods 41 one by one, one end of the second rods 210 is rotatably disposed on the base 20 and is drivingly connected to the movable end 412 of the corresponding first rod 41, and the other end of the second rods 210 is drivingly connected to the bearing seat 30. That is, in the embodiment, the movement of the carrier 30 is realized by driving the two first rods 41 to drive the different second rods 210 respectively. Moreover, it should be noted that, when the two first rods 41 drive the carrier 30 to move relative to the base 20, the rotation angles of the two first rods 41 need to be kept consistent, so as to ensure that the carrier 30 does not deflect relative to the base 20 during the movement.
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.
Optionally, the two first rods 41 are correspondingly disposed on a set of mutually parallel sides of the base 20. And, the two second rods 210 are correspondingly disposed on the other set of 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 embodiment proposes that the carrier 30 is driven by two first rods 41 symmetrically disposed about the center of the carrier 30 to drive different second rods 210 to rotate, the number of the first rods 41 and the second rods 210 may be increased according to the actual use situation or the requirement of the driving force, so as to increase the driving force of the stick assembly 40 and the driving rod assembly 200 on the carrier 30.
That is, the base 20 is generally quadrilateral in shape in the present application, and when the lever assembly 40 only includes two first rods 41 disposed centrosymmetrically, the two first rods 41 are disposed on a set of opposite and parallel sides of the base 20. The two second rods 210 are respectively disposed on the other set of opposite and parallel sides of the base 20. Meanwhile, in the present application, the adjacent first rod 41 and second rod 210 are all adjacent end to end.
Of course, the base 20 can be configured in other shapes according to the actual application requirements.
Optionally, one of the sidewalls of the second rod 210 and the side wall of the carrying seat 30 corresponding to the second rod 210 has a driving protrusion 60, the other has a driving groove 70, the driving groove 70 extends in the same direction as the length direction of the second rod 210, the driving protrusion 60 extends into the driving groove 70, and when the second rod 210 rotates relative to the base 20, the driving protrusion 60 moves along the driving groove 70.
Optionally, the second rod 210 has a driving groove 70, the carrying seat 30 has a driving protrusion 60, and a side wall of the carrying seat 30 corresponding to the second rod 210 has a mounting groove extending along the length direction of the first rod or a plurality of mounting holes 31 spaced along the length direction of the second rod 210, and one end of the driving protrusion 60 is fixedly disposed in the mounting groove or detachably disposed on any one of the mounting holes 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 a side of the carrier 30 corresponding to each second rod 210, 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 second rod 210. Moreover, it should be noted that, the purpose of the plurality of mounting holes 31 provided in the present application is mainly to adjust the sensitivity of the second rod 210 for driving the bearing seat 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 second rod 210 is also determined, and further, the sensitivity of the second rod 210 for driving the bearing seat 30 is determined.
Preferably, the shifter assembly 40 further includes a plurality of rotating shafts 42, and the connecting end 411 of the first rod 41 and the second rod 210 are movably connected to the base 20 through the different rotating shafts 42, respectively. By such an arrangement, the first rod 41 and the second rod 210 can be more flexibly rotated relative to the base 20.
Optionally, one of the movable end 412 of the first rod 41 and the end of the second rod 210 drivingly connected to the first rod 41 has a clamping protrusion 300, and the other has a clamping groove 500 matching with the clamping protrusion 300. That is to say, when the first rod 41 rotates relative to the base 20, the first rod 41 can drive the second rod 210 to move together by the cooperation of the engaging protrusion 300 and the engaging groove 500.
In one particular embodiment of the present application, the drive assembly 50 includes: a plurality of first threads 51, the first threads 51 being provided; a plurality of second threads 52, wherein each first rod 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 respectively connected to the connecting end 411 of the first rod 41, and a second end of the first wire 51 and a second end of the second wire 52 extend in a direction of a length of the first rod 41 and are connected to the FPC board 53. The first wire 51 is disposed on a side of the first rod 41 away from the base 20, and the second wire 52 is disposed on a side of the first rod 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 direction of rotation of the first lever 41 is opposite to the direction of rotation of the first lever 41 when the second wire 52 is energized. Through such an arrangement, when the first wire 51 is powered on, the first rod 41 rotates under the action of the first wire 51, and the rotating direction is that the movable end 412 of the first rod 41 moves along the direction close to the base 20, so as to drive the second rod 210 to move along the direction away from the base 20, and then the second rod 210 drives the bearing seat 30 to move along the direction away from the base 20, and when the second wire 52 is powered on, the first rod 41 rotates under the action of the second wire 52, and the rotating direction is that the movable end 412 of the first rod 41 moves along the direction away from the base 20, so as to drive the bearing seat 30 to move along the direction close to the base 20, and then the second rod 210 drives the bearing seat 30 to move along the direction close to 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.
Furthermore, 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 disposed parallel to the first rod 41. Of course, the first wire 51 and the first rod 41 and the second wire 52 and the first 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 first 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 first rod 41, and the first wire 51 and the second wire 52 are respectively connected to the first 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 mounting posts 22 corresponding to the connecting end 411 and the movable end 412 of the first rod 41, the connecting end 411 of the first rod 41 is movably connected to the mounting posts 22, the collet 80 is disposed on the mounting posts 22 corresponding to the movable end 412 of the first rod 41, and the second rod 210 is movably connected to the mounting posts 22 corresponding to the movable end 412. 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 first rod 41, and the mounting posts 22 are perpendicular to the surface of the base 20 on which they are located. Meanwhile, two of the mounting posts 22 are mounted with the first rod 41, and the other two mounting posts 22 are mounted with the second rod 210. Meanwhile, the mounting post 22 corresponding to the movable end 412 has an escape groove 222 for escaping the movable end 412. That is, the mounting post 22 to which the second rod 210 is mounted has an escape groove 222.
Optionally, the optical element driving apparatus further includes a plurality of balls 90, a first mounting groove 221 is respectively disposed on a side of each mounting post 22 facing the bearing seat 30, 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 disposed in each first mounting groove 221, and a second mounting groove 32 is disposed in the bearing seat 30 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 balls 90 therein in the present application, and at least two balls 90 may be disposed in the first mounting groove 221, so that the friction between the carriage 30 and the mounting post 22 can be reduced during the movement of the carriage 30.
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 service 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 (19)
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;
a shifter lever assembly (40), at least a portion of the shifter lever assembly (40) being rotatably disposed on the base (20);
the driving rod assembly (200), the deflector rod assembly (40) is in driving connection with the driving rod assembly (200), and the driving rod assembly (200) 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);
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 that the bearing seat (30) is driven to move in a direction close to or far away from the base (20) through the driving rod assembly (200).
2. The optical element driving apparatus according to claim 1, wherein the lever assembly (40) includes at least two first rods (41) disposed symmetrically with respect to the center of the carrier (30), the first rods (41) are drivingly connected to the driving rod assembly (200), and two ends of the first rods (41) are a connecting end (411) and a movable end (412), respectively, the connecting end (411) of the first rods (41) is movably connected to the base (20), so that the first rods (41) can rotate with respect to the base (20).
3. The optical element driving apparatus according to claim 2, wherein the driving rod assembly (200) comprises at least two second rods (210) symmetrically disposed about the center of the carrying seat (30), the second rods (210) correspond to the first rods (41) one by one, one end of the second rods (210) is rotatably disposed on the base (20) and is drivingly connected to the movable end (412) of the corresponding first rod (41), and the other end of the second rods (210) is drivingly connected to the carrying seat (30).
4. An optical element driving device according to claim 3,
the two first rod bodies (41) are correspondingly arranged on a group of mutually parallel side edges of the base (20); and/or
The two second rod bodies (210) are correspondingly arranged on the other group of mutually parallel side edges of the base (20).
5. The optical element driving device according to claim 3, wherein one of the side walls of the second shaft (210) 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 second shaft (210), the driving protrusion (60) protrudes into the driving groove (70), and the driving protrusion (60) moves along the driving groove (70) when the second shaft (210) rotates relative to the base (20).
6. The optical element driving apparatus as claimed in claim 5, wherein the second rod (210) 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 second rod (210) has a mounting groove extending along the length direction of the second rod (210) or a plurality of mounting holes (31) spaced along the length direction of the second rod (210),
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).
7. The optical element driving apparatus according to claim 3, wherein said lever assembly (40) further comprises a plurality of rotation shafts (42), and said first rod (41) and said second rod (210) are movably connected to said base (20) through different rotation shafts (42), respectively.
8. The optical element driving device according to claim 3, wherein one of the movable end (412) of the first rod (41) and the end of the second rod (210) drivingly connected to the first rod (41) has a snap projection (300), and the other has a snap groove (500) cooperating with the snap projection (300).
9. An optical element driving device according to any one of claims 3 to 8, 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 first rod (41) corresponds to at least one first wire (51) and at least one second wire (52);
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 first 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 first body of rod (41) and with FPC board (53) are connected.
10. The optical element driving device according to claim 9,
the first silk thread (51) is arranged on one side of the first rod body (41) far away from the base (20), and the second silk thread (52) is arranged on one side of the first rod body (41) close to the base (20); or
The first wire (51) is arranged crosswise to the second wire (52).
11. Optical element driving device according to claim 10, 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.
12. Optical element driving device according to claim 10, wherein the direction of rotation of the first rod (41) when the first wire (51) is energized is opposite to the direction of rotation of the first rod (41) when the second wire (52) is energized.
13. The optical element driving device according to claim 9, further comprising a plurality of clips (80), wherein the first wire (51) and the second wire (52) are connected to the FPC board (53) through different clips (80), respectively.
14. The optical element driving apparatus as claimed in claim 13, wherein the base (20) is provided with a mounting post (22) corresponding to the connecting end (411) and the movable end (412) of the first rod (41), the connecting end (411) of the first rod (41) is movably connected to the mounting post (22), the collet (80) is disposed on the mounting post (22) corresponding to the movable end (412) of the first rod (41), and the second rod (210) is movably connected to the mounting post (22) corresponding to the movable end (412).
15. The optical element driving device according to claim 14, wherein the mounting post (22) corresponding to the movable end (412) has an escape groove (222) for escaping the movable end (412).
16. The optical element driving device according to claim 14, further comprising a plurality of balls (90), wherein each of the mounting posts (22) is provided with a first mounting groove (221) on a side facing the carrying seat (30), the first mounting groove (221) extends in a direction parallel to a moving path of the carrying seat (30), at least one ball (90) is disposed in each first mounting groove (221), and the carrying seat (30) is provided with a second mounting groove (32) corresponding to the first mounting groove (221).
17. The optical element driving device according to claim 14, 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).
18. An image pickup apparatus comprising the optical element driving apparatus according to any one of claims 1 to 17.
19. A mobile terminal characterized in that it comprises the camera device of claim 18.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530931.7A CN114815115A (en) | 2022-05-16 | 2022-05-16 | Optical element driving device, image pickup device, and mobile terminal |
| PCT/CN2022/116405 WO2023221335A1 (en) | 2022-05-16 | 2022-09-01 | Optical component drive apparatus, video image capture apparatus, and mobile terminal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210530931.7A CN114815115A (en) | 2022-05-16 | 2022-05-16 | Optical element driving device, image pickup device, and mobile terminal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN114815115A true CN114815115A (en) | 2022-07-29 |
Family
ID=82515302
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202210530931.7A Pending CN114815115A (en) | 2022-05-16 | 2022-05-16 | Optical element driving device, image pickup device, and mobile terminal |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN114815115A (en) |
| WO (1) | WO2023221335A1 (en) |
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| WO2023221336A1 (en) * | 2022-05-16 | 2023-11-23 | 上海信迈电子科技有限公司 | Optical element driving device, camera device and mobile terminal |
| WO2023221335A1 (en) * | 2022-05-16 | 2023-11-23 | 上海信迈电子科技有限公司 | Optical component drive apparatus, video image capture apparatus, and mobile terminal |
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Also Published As
| Publication number | Publication date |
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| WO2023221335A1 (en) | 2023-11-23 |
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