CN113589543B - Anti-shake system, movable structure, lens driving device, image pickup device, and electronic apparatus - Google Patents
Anti-shake system, movable structure, lens driving device, image pickup device, and electronic apparatus Download PDFInfo
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- CN113589543B CN113589543B CN202110931942.1A CN202110931942A CN113589543B CN 113589543 B CN113589543 B CN 113589543B CN 202110931942 A CN202110931942 A CN 202110931942A CN 113589543 B CN113589543 B CN 113589543B
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/64—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image
- G02B27/646—Imaging systems using optical elements for stabilisation of the lateral and angular position of the image compensating for small deviations, e.g. due to vibration or shake
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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
- G03B5/00—Adjustment of optical system relative to image or object surface other than for focusing
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- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Adjustment Of Camera Lenses (AREA)
Abstract
The invention relates to a modular optical anti-shake system, a movable structure, a lens driving device, a camera device and electronic equipment. The anti-shake device solves the technical problems of small anti-shake thrust and the like in the prior art. The module type optical anti-shake system comprises a fixed outer frame; the anti-shake middle frame is positioned in the fixed outer frame; the anti-shake middle frame is rotationally connected with the fixed outer frame and rotates around the X axis; an anti-shake inner frame positioned in the anti-shake middle frame; the anti-shake inner frame is rotationally connected with the anti-shake middle frame and rotates around the Y axis; an X-axis motor driving mechanism for driving the anti-shake middle frame to rotate around an X axis; and the Y-axis motor driving mechanism drives the anti-shake inner frame to rotate around the Y axis. The invention has the advantages that: the problem of electromagnetic structure moment is little in the module anti-shake has been solved to the synergism that utilizes step motor, worm wheel and worm, and there is self-locking feature in the worm wheel worm structure simultaneously, can more stable rotation, utilizes step-by-step drive simultaneously, can obtain a great rotation angle.
Description
Technical Field
The invention belongs to the technical field of motors, and particularly relates to a modular optical anti-shake system, a movable structure, a lens driving device, a camera device and electronic equipment.
Background
The motor applied to the field of camera shooting is driven by Lorentz force generated by a magnet and a coil, so that anti-shake and focusing can be realized.
The existing module type anti-shake technology is of an electromagnetic structure, the thrust is small, only small-angle anti-shake and rotation can be achieved through a moving magnetic structure between the side wall of the module and an outer frame, the electromagnetic structure is easy to shake, an elastic sheet is required to be used for stabilizing the structure, the whole process is complex, the sales volume is low, the design is unreasonable, and the use is limited greatly.
Disclosure of Invention
The present invention is directed to solving the above problems, and an object of the present invention is to provide a modular optical anti-shake system, a movable structure, a lens driving device, an imaging device, and an electronic apparatus.
In order to achieve the above purpose, the present invention adopts the following technical scheme:
the module type optical anti-shake system comprises a fixed outer frame;
the anti-shake middle frame is positioned in the fixed outer frame;
the anti-shake middle frame is rotationally connected with the fixed outer frame and rotates around the X axis;
an anti-shake inner frame positioned in the anti-shake middle frame;
the anti-shake inner frame is rotationally connected with the anti-shake middle frame and rotates around the Y axis;
an X-axis motor driving mechanism for driving the anti-shake middle frame to rotate around an X axis;
and the Y-axis motor driving mechanism drives the anti-shake inner frame to rotate around the Y axis.
In the above-mentioned module-type optical anti-shake system, the anti-shake middle frame is rotatably connected with the fixed outer frame through a first connecting shaft distributed along the X-axis.
In the above-mentioned modular optical anti-shake system, the X-axis motor driving mechanism includes an X-axis stepper motor, and a first worm is connected to an output shaft of the X-axis stepper motor, and is meshed with a first worm wheel fixed on the first connecting shaft.
In the above-mentioned module optical anti-shake system, the anti-shake inner frame is rotatably connected with the anti-shake middle frame through a second connecting shaft distributed along the Y-axis.
In the above-mentioned module optical anti-shake system, the Y-axis motor driving mechanism includes a Y-axis stepper motor fixed on the anti-shake middle frame, and a second worm is connected to an output shaft of the Y-axis stepper motor, and is meshed with a second worm wheel fixed on the second connecting shaft.
In the above-mentioned module optical anti-shake system, the second connecting shafts are two, one of the second connecting shafts extends out to the outer wall of the anti-shake middle frame along the axial direction of the second connecting shaft, and the second worm wheel is fixed at one end of the second connecting shaft extending out to the outer wall of the anti-shake middle frame along the axial direction of the second connecting shaft.
In the above-mentioned modular optical anti-shake system, the Y-axis stepper motor is connected with a bent elastic power supply board fixed on the base, and the bent elastic power supply board is stretched or compressed when the anti-shake inner frame rotates around the Y-axis.
In the above-mentioned module optical anti-shake system, be equipped with the second mount at anti-shake center outer wall, be connected with the stiffening plate on the second mount, the one end that the second connecting axle axially outwards stretches out to anti-shake center outer wall rotates with the stiffening plate to be connected.
The Y-axis stepping motor is fixed on the second fixing frame, and the second worm is rotationally connected with the second fixing frame.
In the above-mentioned module optical anti-shake system, the anti-shake middle frame and the fixed outer frame are distributed eccentrically, and the two wall surfaces of the outer wall of the anti-shake middle frame and the two wall surfaces of the inner wall of the fixed outer frame are arranged in the eccentric large installation space, and the X-axis motor driving mechanism and the Y-axis motor driving mechanism are respectively arranged in the eccentric large installation space.
In the above-mentioned module optical anti-shake system, the inner wall of the fixed outer frame is provided with a first limiting inner boss for limiting the rotation angle of the anti-shake middle frame around the X axis.
In the above-mentioned module optical anti-shake system, the inner wall of the anti-shake middle frame is provided with a second limiting inner boss for limiting the rotation angle of the anti-shake inner frame around the Y axis.
In the above-mentioned modular optical anti-shake system, the upper and lower edges of each of two sides of the anti-shake middle frame parallel to the X-axis are respectively provided with a first chamfer.
In the above-mentioned module optical anti-shake system, the outer edge of the upper end of the fixed outer frame is provided with a second chamfer, and the outer edge of the upper end of the anti-shake inner frame is provided with a third chamfer.
The invention further provides a modular movable structure with anti-shake function, a modular optical anti-shake system with the modular movable structure, and
the lens carrier is fixed in the anti-shake inner frame.
In the above-mentioned module movable structure with anti-shake function, the movable structure further comprises a sensor assembly fixed at the lower end of the lens carrier, and the sensor assembly is connected with a bending type flexible power supply board arranged on the base.
In the above-mentioned module formula active structure of anti-shake in area, the flexible power supply board of bending type include that the sensor is connected bending portion and base connecting portion, the sensor is connected bending portion and base connecting portion and is connected through middle part U-shaped portion, middle part U-shaped portion unsettled in anti-shake inside casing below, be equipped with the relief hole that sets up along middle part U-shaped portion length direction on middle part U-shaped portion.
The invention further provides a lens driving device which is provided with the module type movable structure with the anti-shake function.
The invention further provides an image pickup apparatus having the lens driving apparatus.
The invention further provides electronic equipment, which is provided with the image pickup device.
Compared with the prior art, the invention has the advantages that:
the motor driving mode, especially the synergistic effect of the stepping motor, the worm wheel and the worm, solves the problem of small moment of the electromagnetic structure in module anti-shake, simultaneously has self-locking characteristic of the worm wheel and the worm structure, can rotate more stably, is compared with the electromagnetic structure, reduces the structure of the spring plate, and can obtain a larger rotation angle by stepping driving.
Secondly, use step motor to match the structure of worm gear and worm and carry out anti-shake, compare original structure, reduced the quantity of part, new scheme simultaneously can obtain great moment of torsion and bigger rotation angle, step motor can obtain a higher rotational accuracy when carrying out vector synthesis drive simultaneously in the drive, step motor rotation speed advantage such as fast, greatly promoted ageing, accuracy and the stability of anti-shake.
Drawings
Fig. 1 is a schematic view of a three-dimensional angle structure of an anti-shake system according to the present invention.
Fig. 2 is a schematic view of the structure of fig. 1 with the housing removed.
Fig. 3 is a schematic diagram of a structure of an anti-shake system with a lens according to the present invention.
Fig. 4 is an enlarged schematic sectional view of the structure taken along line B-B in fig. 3.
An enlarged schematic view of the structure of A-A in fig. 3 is taken along the section line in fig. 5.
Fig. 6 is an enlarged schematic view of the structure shown at a in fig. 4.
Fig. 7 is an enlarged schematic view of the structure b in fig. 4.
Fig. 8 is an enlarged schematic view of fig. 5 at c.
Fig. 9 is an enlarged schematic view of the structure of fig. 5 at d.
Fig. 10 is a schematic view of the structure of fig. 2 with the fixed frame removed.
Fig. 11 is a schematic view of another view angle structure of fig. 10.
Fig. 12 is a schematic view of a structure of a fixed frame according to the present invention.
Fig. 13 is a schematic diagram of an anti-shake middle frame structure according to the present invention.
Fig. 14 is a schematic structural view of a second fixing frame provided by the present invention.
Fig. 15 is a schematic diagram of a bent flexible power board structure provided by the invention.
Fig. 16 is a schematic structural diagram of an image capturing apparatus according to the present invention.
Fig. 17 is a schematic structural diagram of an electronic device provided by the present invention.
In the figure, a fixed outer frame 1, a first limiting inner boss 10, a second chamfer 11, an open slot 12, a first shaft sleeve 13, an anti-shake middle frame 2, a second limiting inner boss 2a, a first connecting shaft 20, a second fixing frame 21, a reinforcing plate 22, a first chamfer 23, an outer boss 24, an anti-shake inner frame 3, a second connecting shaft 30, a third chamfer 31, an inverted open slot 32, a second shaft sleeve 33, a second shaft hole 34, an X-axis motor driving mechanism 4, an X-axis stepping motor 40, a first worm 41, a first worm wheel 42, a fixed bracket 43, a Y-axis motor driving mechanism 5, a Y-axis stepping motor 50, a second worm 51, a second worm wheel 52, a bent elastic power supply plate 53, a base 6, a housing 60, a lens carrier 7, a sensor assembly 8, a bent flexible power supply plate 9, a sensor connecting portion 90, a base connecting portion 91, a middle U-shaped portion 92, and a pressure reducing hole 93.
Detailed Description
The following are specific embodiments of the invention and the technical solutions of the invention will be further described with reference to the accompanying drawings, but the invention is not limited to these embodiments.
Example 1
The X axis and the Y axis of this embodiment are located in a horizontal plane and are vertically connected, while the Z axis is perpendicular to the intersection of the X axis and the Y axis, and the Z axis is understood as the optical axis.
As shown in fig. 1 and 2, the module type optical anti-shake system includes a fixed frame 1, the fixed frame 1 is fixed on a base 6, and the base 6 is a flat plate structure.
The anti-shake middle frame 2 is positioned in the fixed outer frame 1; preferably, the anti-shake middle frame 2 and the fixed outer frame 1 of the embodiment are eccentrically distributed so as to meet the assembly requirement of the installation avoidance space.
The anti-shake middle frame 2 is rotationally connected with the fixed outer frame 1, and the anti-shake middle frame 2 rotates around the X axis; further, the anti-shake middle frame 2 is rotatably connected to the fixed outer frame 1 through a first connection shaft 20 distributed along the X-axis.
Preferably, as shown in fig. 2-12, two first connecting shafts 20 are arranged on two sides of the X-axis and are in overlapping arrangement, the outer end of each first connecting shaft 20 is rotatably connected to the fixed outer frame 1, the inner end of each first connecting shaft 20 is fixed to the anti-shake middle frame 2, and when any one first connecting shaft 20 rotates around the X-axis, the anti-shake middle frame 2 is driven to rotate around the X-axis, so as to realize anti-shake.
As shown in fig. 2, an X-axis motor driving mechanism 4 drives the anti-shake middle frame 2 to rotate around the X-axis; specifically, the X-axis motor driving mechanism 4 of the present embodiment includes an X-axis stepping motor 40, a first worm 41 is connected to an output shaft of the X-axis stepping motor 40, and the first worm 41 is engaged with a first worm wheel 42 fixed to the first connecting shaft 20. The first worm gear 42 is sleeved on any one of the first connecting shafts 20 and fixedly connected with the first connecting shaft in the circumferential direction so as to meet the driving requirement.
Of course, in order to make the overall structure more compact and layout more reasonable. And the two wall surfaces of the outer wall of the anti-shake middle frame 2 and the two wall surfaces of the inner wall of the fixed outer frame 1 form an eccentric large installation space, and the X-axis motor driving mechanism 4 is arranged in the eccentric large installation space.
Next, the X-axis stepping motor 40 is fixed to the inner wall of the fixed frame 1 by the fixing bracket 43, that is, the fixing bracket 43 is fixed to the inner wall of the fixed frame 1.
As shown in fig. 6, 7 and 12, an open slot 12 is provided on each of opposite sides of the fixed frame 1, and a first sleeve 13 is provided on an outer end of the first connecting shaft 20, and the first sleeve 13 is fixed to a bottom of the open slot 12 to realize rotational connection. The first sleeve 13 is a T-shaped sleeve which can enlarge the connection area with the open slot 12 to further improve rotational stability. Meanwhile, first shaft holes are respectively formed in two opposite sides of the anti-shake middle frame 2, each first shaft hole is connected with a first connecting shaft 20, and the first connecting shafts 20 are fixedly connected with the first shaft holes in the circumferential direction.
An anti-shake inner frame 3 positioned in the anti-shake middle frame 2; the axial lead of the anti-shake inner frame 3 is overlapped with the axial lead of the anti-shake middle frame 2, so as to ensure the compactness of the structure.
The anti-shake inner frame 3 is rotationally connected with the anti-shake middle frame 2, and the anti-shake inner frame 3 rotates around the Y axis; preferably, the anti-shake inner frame 3 is rotatably connected to the anti-shake middle frame 2 through a second connection shaft 30 distributed along the Y-axis. That is, the second connecting shaft 30 is fixedly connected to the anti-shake inner frame 3, and the second connecting shaft 30 is rotatably connected to the anti-shake middle frame 2.
And secondly, two second connecting shafts 30 are arranged, wherein the outer end of one second connecting shaft 30 extends outwards to the outer wall of the anti-shake middle frame 2 along the axial direction of the second connecting shaft 30. The outer end of the remaining second connecting shaft 30 is rotatably connected with an inverted open groove 32 on the anti-shake middle frame 2. That is, the second sleeves 33 are sleeved on the outer ends of the two second connecting shafts 30, one of the second sleeves 33 is positioned in the inverted open groove 32 and is rotatably connected with the inverted open groove 32, and meanwhile, the second sleeve 33 is also a T-shaped sleeve.
The inner end of each second connecting shaft 30 is fixedly connected with a second shaft hole 34 on two opposite sides of the anti-shake inner frame 3 in a circumferential direction.
As shown in fig. 2, 8, 9 and 13, the Y-axis motor driving mechanism 5 drives the anti-shake inner frame 3 to rotate around the Y-axis. The Y-axis motor driving mechanism 5 is arranged in the eccentric large installation space. Specifically, the Y-axis motor driving mechanism 5 of the present embodiment includes a Y-axis stepping motor 50 fixed to the anti-shake middle frame 2, and a second worm 51 is connected to an output shaft of the Y-axis stepping motor 50, and the second worm 51 is engaged with a second worm wheel 52 fixed to the second connection shaft 30. Further, as shown in fig. 10 and 14, a second fixing frame 21 is provided on the outer wall of the anti-shake middle frame 2, a reinforcing plate 22 is connected to the second fixing frame 21, and one end of the second connecting shaft 30 extending axially outwards to the outer wall of the anti-shake middle frame 2 is rotatably connected with the reinforcing plate 22. That is, the second sleeve 33 connected to the second connecting shaft 30 and extending axially outward to one end of the outer wall of the anti-shake middle frame 2 is rotatably connected to the reinforcing plate 22.
Further, an inverted U-shaped groove is provided at the lower end of the reinforcing plate 22, and the second sleeve 33 is fixed in the inverted U-shaped groove.
As shown in fig. 10 and 11, the Y-axis stepper motor 50 is connected to a flexible circuit board 54 fixed to the base 6.
As shown in fig. 8 and 9, the Y-axis stepping motor 50 is fixed to the second mount 21 and the second worm 51 is rotatably connected to the second mount 21. In order to further improve the fixing stability, two relatively distributed outer convex blocks 24 are arranged on the outer wall of the anti-shake middle frame 2, one end, far away from the output shaft, of the Y-axis stepping motor 50 is fixed on one of the outer convex blocks 24, the second fixing frame 21 is located between the two outer convex blocks 24, the second fixing frame 21 is U-shaped, the reinforcing plate 22 extends to the middle of the U-shaped opening of the second fixing frame 21, the middle of the second fixing frame 21 is fixed on the outer wall of the anti-shake middle frame 2 through a riveting column, and glue can be added between the middle of the second fixing frame 21 and the outer wall of the anti-shake middle frame 2 to further improve the connection strength.
The second fixing frame 21 has a worm through hole near one end of the Y-axis stepper motor 50, the other end of the second fixing frame 21 has a worm installation shaft hole, the second worm 51 penetrates through the worm through hole and extends into the worm installation shaft hole to be in rotational connection with the worm installation shaft hole, and the rotational connection can be realized by using a bearing or a shaft sleeve.
Preferably, as shown in fig. 10, the Y-axis stepper motor 50 is connected to a flexible power supply plate 53 fixed on the base 6, and the flexible power supply plate 53 is stretched or compressed when the anti-shake inner frame 3 rotates around the Y-axis. The bending elastic power supply board 53 is a continuously bending wave structure, and has certain elasticity, so that the bending elastic power supply board can be stretched or compressed together with the rotation of the anti-shake inner frame 3 around the Y axis, and power supply is realized.
In order to secure the rotation driving stability, as shown in fig. 9 and 12, a first restriction inner boss 10 for restricting the rotation angle of the anti-shake middle frame 2 around the X axis is provided at the inner wall of the fixed outer frame 1. The first restriction inner boss 10 is elongated and has one, which is located in a narrow space of the fixed outer frame 1 and the anti-shake middle frame 2 and the first restriction inner boss 10 is parallel to the X axis.
Next, as shown in fig. 6, 7 and 13, a second restriction inner boss 2a for restricting the rotation angle of the anti-shake inner frame 3 about the Y axis is provided on the inner wall of the anti-shake middle frame 2. The two second limiting inner bosses 2a are distributed on the inner walls of the opposite side parts of the anti-shake middle frame 2, and the two second limiting inner bosses 2a are parallel to the Y axis.
The first limiting inner boss 10 and the second limiting inner boss 2a are used for limiting the limit position, and use reliability is ensured.
As shown in fig. 10 to 13, the upper and lower sides of each of the two sides of the anti-shake middle frame 2 parallel to the X axis are provided with first chamfers 23. The outer edge of the upper end of the fixed outer frame 1 is provided with a second chamfer 11, and the outer edge of the upper end of the anti-shake inner frame 3 is provided with a third chamfer 31.
The design of chamfer it can form dodging, improves packaging efficiency.
A housing 60 is mounted on the base 6 to provide protection for the internal components.
The working principle of this embodiment is as follows:
when the X-axis motor driving mechanism 4 is powered on, the X-axis motor driving mechanism 4 drives the anti-shake middle frame 2 to rotate around the X-axis, that is, around the axis of the first connecting shaft 20, so as to realize anti-shake.
When the Y-axis motor driving mechanism 5 is powered on, the Y-axis motor driving mechanism 5 drives the anti-shake inner frame 3 to rotate around the Y axis, namely around the axis of the second connecting shaft 30, so that anti-shake is realized.
Of course, the X-axis and Y-axis anti-shake can be synchronously performed, so that multi-axis simultaneous anti-shake is realized, and the anti-shake purpose is really achieved.
In addition, in the embodiment, the problem of small electromagnetic structural moment in module anti-shake is solved by utilizing a motor driving mode, particularly the synergistic effect of a stepping motor, a worm gear and a worm, meanwhile, the worm gear structure has self-locking characteristic, can rotate more stably, compared with the electromagnetic structure, the structure of an elastic sheet is reduced, and meanwhile, a larger rotation angle can be obtained by utilizing stepping driving.
Secondly, use step motor to match the structure of worm gear and worm and carry out anti-shake, compare original structure, reduced the quantity of part, new scheme simultaneously can obtain great moment of torsion and bigger rotation angle, step motor can obtain a higher rotational accuracy when carrying out vector synthesis drive simultaneously in the drive, step motor rotation speed advantage such as fast, greatly promoted ageing, accuracy and the stability of anti-shake.
Example two
As shown in fig. 1, 4 and 15, the present embodiment provides a modular movable structure with anti-shake function, having the modular optical anti-shake system according to the first embodiment, and
the lens carrier 7, the lens carrier 7 is fixed in the anti-shake inside casing 3. The lens carrier 7 may be an AF motor or a single carrier.
Further, the movable structure also comprises a sensor assembly 8 fixed at the lower end of the lens carrier 7, and the sensor assembly 8 is connected with a bending type flexible power supply board 9 arranged on the base 6. The sensor assembly 8 is a hall sensor for detecting the position of the lens carrier 7 after movement, i.e. the position on the optical axis.
Preferably, the bent flexible power supply board 9 of this embodiment includes a sensor connection bending portion 90 and a base connection portion 91, the sensor connection bending portion 90 and the base connection portion 91 are connected through a middle U-shaped portion 92, the middle U-shaped portion 92 is suspended below the anti-shake inner frame 3, and a pressure reducing hole 93 is formed in the middle U-shaped portion 92 along the length direction of the middle U-shaped portion 92. The pressure reducing hole 93 is capable of satisfying the deformation resistance when rotated about the X-axis and the Y-axis.
The U-shaped opening of the middle U-shaped portion 92 is directed toward one side of the anti-shake middle frame 2 along the X-axis.
The bent flexible power supply board 9 also supplies power to the AF motor.
In the present embodiment
The sensor assembly 8 is dynamically powered by a bent flexible power board 9 and is adapted to the deformation resistance during rotation about the X-axis and the Y-axis.
Example III
Based on the second embodiment, as shown in fig. 16, the present embodiment provides an image capturing apparatus having the module type moving structure with anti-shake as described in the second embodiment. For example, a module with lenses, etc.
Example IV
Based on the third embodiment, as shown in fig. 17, this embodiment provides an electronic apparatus having the image pickup device described in the third embodiment. Such as mobile phones and the like.
The specific embodiments described herein are offered by way of example only to illustrate the spirit of the invention. Those skilled in the art may make various modifications or additions to the described embodiments or substitutions thereof without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.
Claims (12)
1. The module optical anti-shake system comprises a fixed outer frame (1), and is characterized in that the system further comprises:
the anti-shake middle frame (2) is positioned in the fixed outer frame (1);
the anti-shake middle frame (2) is rotationally connected with the fixed outer frame (1), and the anti-shake middle frame (2) rotates around the X axis;
an anti-shake inner frame (3) positioned in the anti-shake middle frame (2);
the anti-shake inner frame (3) is rotationally connected with the anti-shake middle frame (2), and the anti-shake inner frame (3) rotates around the Y axis;
an X-axis motor driving mechanism (4) for driving the anti-shake middle frame (2) to rotate around an X axis; the X-axis motor driving mechanism (4) comprises an X-axis stepping motor (40), a first worm (41) is connected to an output shaft of the X-axis stepping motor (40), and the first worm (41) is meshed with a first worm wheel (42) fixed on the first connecting shaft (20);
the Y-axis motor driving mechanism (5) drives the anti-shake inner frame (3) to rotate around the Y axis; the Y-axis motor driving mechanism (5) comprises a Y-axis stepping motor (50) fixed on the anti-shake middle frame (2), a second worm (51) is connected to an output shaft of the Y-axis stepping motor (50), and the second worm (51) is meshed with a second worm wheel (52) fixed on the second connecting shaft (30);
the anti-shake middle frame (2) and the fixed outer frame (1) are distributed eccentrically, two wall surfaces of the outer wall of the anti-shake middle frame (2) and two wall surfaces of the inner wall of the fixed outer frame (1) are arranged in an eccentric large installation space, and the X-axis motor driving mechanism (4) and the Y-axis motor driving mechanism (5) are respectively arranged in the eccentric large installation space;
the anti-shake middle frame (2) is rotationally connected with the fixed outer frame (1) through first connecting shafts (20) distributed along the X axis; an open slot (12) is respectively arranged at two opposite sides of the fixed outer frame (1), a first shaft sleeve (13) is sleeved at the outer end of the first connecting shaft (20), and the first shaft sleeve (13) is fixed at the bottom of the open slot (12); the anti-shake inner frame (3) is rotationally connected with the anti-shake middle frame (2) through second connecting shafts (30) distributed along the Y axis; the second connecting shafts (30) are two, the outer end of one second connecting shaft (30) extends outwards to the outer wall of the anti-shake middle frame (2) along the axial direction of the second connecting shaft (30), and the second worm wheel (52) is fixed at one end of the second connecting shaft (30) extending outwards to the outer wall of the anti-shake middle frame (2); the outer wall of the anti-shake middle frame (2) is provided with a second fixing frame (21), a reinforcing plate (22) is connected to the second fixing frame (21), and one end of the second connecting shaft (30) extending outwards to the outer wall of the anti-shake middle frame (2) axially is rotationally connected with the reinforcing plate (22).
2. The modular optical anti-shake system according to claim 1, wherein the Y-axis stepper motor (50) is connected to a flexible power supply plate (53) fixed to the base (6), and the flexible power supply plate (53) is stretched or compressed when the anti-shake inner frame (3) rotates around the Y-axis.
3. The modular optical anti-shake system according to claim 1, wherein the inner wall of the fixed outer frame (1) is provided with a first limiting inner boss (10) for limiting the rotation angle of the anti-shake middle frame (2) around the X axis.
4. The modular optical anti-shake system according to claim 1, wherein the inner wall of the anti-shake middle frame (2) is provided with a second limiting inner boss (2 a) for limiting the rotation angle of the anti-shake inner frame (3) around the Y axis.
5. The modular optical anti-shake system according to claim 1, wherein the upper and lower edges of each of the two sides of the anti-shake middle frame (2) parallel to the X-axis are respectively provided with a first chamfer (23).
6. The modular optical anti-shake system according to claim 1, wherein the outer edge of the upper end of the fixed outer frame (1) is provided with a second chamfer (11), and the outer edge of the upper end of the anti-shake inner frame (3) is provided with a third chamfer (31).
7. A modular movable structure with anti-shake function, characterized by having a modular optical anti-shake system according to any one of claims 1 to 6, and
the lens carrier (7), the lens carrier (7) is fixed in the anti-shake inside casing (3).
8. The module type movable structure with anti-shake function according to claim 7, further comprising a sensor assembly (8) fixed at the lower end of the lens carrier (7), wherein the sensor assembly (8) is connected with a bending type flexible power supply board (9) mounted on the base (6).
9. The module movable structure with anti-shake function according to claim 8, wherein the bending type flexible power supply board (9) comprises a sensor connecting bending part (90) and a base connecting part (91), the sensor connecting bending part (90) and the base connecting part (91) are connected through a middle U-shaped part (92), the middle U-shaped part (92) is suspended below the anti-shake inner frame (3), and a pressure reducing hole (93) arranged along the length direction of the middle U-shaped part (92) is formed in the middle U-shaped part (92).
10. Lens driving device characterized by having a modular movable structure with anti-shake according to any of claims 7-9.
11. An imaging device comprising the lens driving device according to claim 10.
12. An electronic apparatus comprising the image pickup device according to claim 11.
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| CN202110931942.1A CN113589543B (en) | 2021-08-13 | 2021-08-13 | Anti-shake system, movable structure, lens driving device, image pickup device, and electronic apparatus |
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| CN202110931942.1A CN113589543B (en) | 2021-08-13 | 2021-08-13 | Anti-shake system, movable structure, lens driving device, image pickup device, and electronic apparatus |
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| CN113589543B true CN113589543B (en) | 2023-09-26 |
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