CN116991019A - Lens driving device and electronic equipment - Google Patents

Lens driving device and electronic equipment Download PDF

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Publication number
CN116991019A
CN116991019A CN202310847218.XA CN202310847218A CN116991019A CN 116991019 A CN116991019 A CN 116991019A CN 202310847218 A CN202310847218 A CN 202310847218A CN 116991019 A CN116991019 A CN 116991019A
Authority
CN
China
Prior art keywords
lens
circuit board
lens driving
arm
supporting
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202310847218.XA
Other languages
Chinese (zh)
Inventor
徐同明
韦锁和
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Changzhou Ruitai Photoelectric Co Ltd
Original Assignee
Changzhou Ruitai Photoelectric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Changzhou Ruitai Photoelectric Co Ltd filed Critical Changzhou Ruitai Photoelectric Co Ltd
Priority to CN202310847218.XA priority Critical patent/CN116991019A/en
Publication of CN116991019A publication Critical patent/CN116991019A/en
Pending legal-status Critical Current

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Classifications

    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • G03B17/12—Bodies with means for supporting objectives, supplementary lenses, filters, masks, or turrets
    • 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
    • G02B7/021—Mountings, adjusting means, or light-tight connections, for optical elements for lenses for more than one lens
    • 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
    • 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
    • G03B17/00—Details of cameras or camera bodies; Accessories therefor
    • G03B17/02—Bodies
    • 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
    • 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

Abstract

The invention provides a lens driving device and electronic equipment, the lens driving device comprises a base, a supporting frame, a pair of conductive spring plates, a supporting suspension wire, a circuit board, a focusing circuit board, shared magnetic steel, a focusing coil and an anti-shake coil, wherein the supporting frame is suspended on the base, a lens support is suspended in the supporting frame and used for installing a lens, the conductive spring plates are elastically connected with the supporting frame and the lens support, the circuit board comprises a fixed part fixedly arranged on the base and a movable part suspended on the base and connected with the fixed part, the supporting suspension wire is elastically connected with the conductive spring plates and the movable part, the supporting suspension wire only has the supporting function of supporting the movable part, and the focusing circuit board is fixedly connected with the conductive spring plates and the fixed part and electrically connected with the conductive spring plates and the fixed part, and the conductive spring plates and the fixed part are electrically connected through the circuit board, so that the stability and the reliability of the electric connection of the conductive spring plates, the focusing circuit board and the circuit board are ensured.

Description

Lens driving device and electronic equipment
[ field of technology ]
The present invention relates to the field of cameras, and in particular, to a lens driving device and an electronic device.
[ background Art ]
With the development of imaging technology, a lens driving device is widely used in various imaging devices. The lens driving device is combined with various portable electronic devices such as mobile phones, video cameras, computers and the like, and is favored by consumers.
The related art lens driving device comprises a base, a supporting frame, a lens bracket for installing a lens, a pair of upper spring plates for connecting the supporting frame and the lens bracket so as to suspend the lens bracket in the supporting frame, a suspension wire for connecting the supporting frame to the base and electrically connected with the upper spring plates, a focusing coil fixed on the outer side of the lens bracket, shared magnetic steel fixedly arranged on the supporting frame and electrically coupled with the focusing coil so as to drive the lens bracket to move along the optical axis direction, and an anti-shake coil electrically coupled with the shared magnetic steel so as to drive the lens bracket to move along the direction perpendicular to the optical axis, wherein a conductive terminal electrically connected with the suspension wire is arranged on the base. However, the suspension wire in the lens driving device not only provides a suspension supporting function, but also provides an electric connection function, so that the suspension wire supporting and supporting frame can deform in the process of moving relative to the base, and the suspension wire and the conductive terminal are easy to separate, thereby influencing the reliability of the lens driving device.
Accordingly, it is necessary to provide a new lens driving apparatus to solve the above-described problems.
[ invention ]
The invention aims to provide a lens driving device and electronic equipment, which are used for solving the technical problems that a suspension wire in the existing lens driving device not only provides a suspension supporting function, but also provides an electric connection function, so that the suspension wire supporting and supporting frame deforms in the process of moving relative to a base, and the suspension wire and a conductive terminal are easy to separate, thereby influencing the reliability of the lens driving device.
The technical scheme of the invention is as follows:
in a first aspect, the present invention provides a lens driving apparatus comprising:
a base;
a support frame suspended on the base;
the lens bracket is suspended in the supporting frame and is used for installing a lens;
the pair of conductive elastic pieces are arranged in an insulating manner and are elastically connected with the supporting frame and the lens bracket;
the supporting suspension wire is elastically connected with the conductive elastic sheet and the base;
the circuit board is arranged on the base and comprises a fixed part fixedly arranged on the base and a movable part which is suspended on the base and connected with the fixed part;
an image sensor mounted on the movable section;
a supporting suspension wire elastically connecting the conductive spring plate and the movable part;
the focusing circuit board is fixedly connected with the conductive elastic sheet and the fixing part and electrically connects the conductive elastic sheet and the fixing part;
the shared magnetic steel is fixedly arranged on the supporting frame;
the focusing coil is fixedly arranged on the outer side of the lens bracket and is respectively and electrically connected with the pair of conductive elastic sheets, and the focusing coil is coupled with the shared magnetic steel electric field to drive the lens bracket to move along the optical axis direction; and
and the anti-shake coil is arranged on the movable part and is coupled with the shared magnetic steel electric field to drive the movable part to drive the image sensor to move along the direction vertical to the optical axis.
In one embodiment, the support suspension wire is welded or injection-molded and embedded in the movable part and is electrically insulated from the movable part.
In one embodiment, the conductive spring plate comprises a first arm fixed on the lens support and far away from the base, a second arm fixed on the supporting frame and far away from the base, and a spring arm connecting the first arm and the second arm;
and the two second arms of each conductive elastic sheet are respectively provided with the supporting suspension wires.
In one embodiment, one side of each conductive spring is electrically connected with the focusing circuit board, and the second arm comprises a second first arm which is close to the focusing circuit board and is electrically connected with the focusing circuit board, and a second arm which is far away from the focusing circuit board;
the second first arm comprises a first conductive part electrically connected with the focusing circuit board, a first mounting part connected with the supporting suspension wire and a first fixing part connected with the first conductive part and the first mounting part, and the first fixing part is fixedly arranged on the supporting frame;
the second arm comprises a second installation part connected with the supporting suspension wire and a second fixing part connected with the second installation part, and the second fixing part is fixedly arranged on the supporting frame.
In one embodiment, the support frame is provided with a first mounting column extending along the optical axis direction, and the first fixing part and the second fixing part are both mounted on the support frame through the first mounting column;
the lens support is provided with a second mounting column extending along the optical axis direction, and the first arm is mounted on the lens support through the second mounting column.
In one embodiment, the supporting frame is provided with a receiving groove, and at least part of the conductive elastic sheet is received in the receiving groove.
In one embodiment, the support frame is further provided with four avoidance grooves extending along the optical axis direction, the four avoidance grooves are distributed at four corners of the support frame, and the support suspension wires are provided with four avoidance grooves and are respectively accommodated in the avoidance grooves.
In one embodiment, the circuit board further includes a flexible portion that is movable relative to the fixed portion during movement of the movable portion in a direction perpendicular to the optical axis;
the flexible part comprises a first part attached to the movable part, a second part connected with the first part and extending along the direction of the optical axis, a third part connected with the second part and extending around the optical axis, and a fourth part connected with the third part and the fixed part.
In one embodiment, the focusing circuit board includes an electrical connection portion fixedly disposed on the conductive elastic sheet and electrically connected to the conductive elastic sheet, a fixed connection portion fixedly disposed on the supporting frame, and a main body portion, wherein one end of the main body portion is connected to the electrical connection portion and the fixed connection portion, and the other end is electrically connected to the fixed portion of the circuit board.
In a second aspect, the present invention further provides an electronic device, where the electronic device includes a device body, a lens, and a lens driving device according to any one of the foregoing embodiments, and the lens is mounted on the device body through the lens driving device.
The lens driving device and the electronic equipment provided by the invention have the beneficial effects that:
the support frame and the lens support are elastically connected through the conductive elastic piece, the conductive elastic piece and the movable part are elastically connected through the support suspension wire, so that the support effect of the movable part is only achieved through the support suspension wire, the circuit board is further arranged on the base, the conductive elastic piece and the fixed part are elastically connected with the focusing circuit board, the conductive elastic piece and the fixed part are electrically connected, the conductive elastic piece is electrically connected through the circuit board, and therefore stability and reliability of the electrical connection of the conductive elastic piece, the focusing circuit board and the circuit board are ensured.
[ description of the drawings ]
Fig. 1 is a schematic view of a lens driving apparatus and a lens according to an embodiment of the present invention.
Fig. 2 is an exploded view of the lens driving apparatus and the lens shown in fig. 1.
Fig. 3 is a top view of the lens driving apparatus and the lens shown in fig. 1.
Fig. 4 is a cross-sectional view A-A of fig. 3.
Fig. 5 is an enlarged view of a portion B in fig. 4.
Fig. 6 is a schematic view of the lens driving apparatus and the lens-removed housing shown in fig. 1.
Fig. 7 is an enlarged schematic view of the portion C in fig. 6.
Fig. 8 is an enlarged schematic view of the portion D in fig. 6.
Fig. 9 is a schematic diagram of a conductive spring in the lens driving device shown in fig. 1.
Fig. 10 is a schematic diagram of a focusing circuit board in the lens driving device shown in fig. 1.
Fig. 11 is a schematic view of a fixing portion and a flexible portion of a circuit board in the lens driving apparatus shown in fig. 1.
Fig. 12 is a schematic view of a first board body of a circuit board in the lens driving device shown in fig. 1.
Fig. 13 is a schematic diagram of an electronic device according to an embodiment of the invention.
Reference numerals: 10. a lens driving device; 20. a lens; 30. an equipment body;
100. a base; 200. a support frame; 210. a mounting groove; 220. a first mounting post; 230. a receiving groove; 240. an avoidance groove; 300. a lens holder; 310. a second mounting post; 400. a conductive spring plate; 410. a first arm; 420. a second arm; 421. a second arm; 4211. a first mounting portion; 4212. a first conductive portion; 4213. a first fixing portion; 422. a second arm; 4221. a second mounting portion; 4222. a second fixing portion; 430. a spring arm; 500. supporting the suspension wire; 600. a circuit board; 610. a movable part; 611. a first plate body; 6111. a placement groove; 612. a second plate body; 6121. a light shielding hole; 620. a fixing part; 621. a connection section; 622. a plug section; 630. a flexible portion; 631. a first portion; 632. a second portion; 633. a third section; 6331. a first extension; 6332. a second extension; 634. a fourth section; 700. a focusing circuit board; 710. an electrical connection; 720. a fixed connection part; 730. a main body portion; 810. sharing magnetic steel; 820. a focusing coil; 830. an anti-shake coil; 841. a first elastic sheet; 842. a second spring plate; 850. an image sensor; 851. a glass plate; 900. a housing.
[ detailed description ] of the invention
The invention will be further described with reference to the drawings and embodiments.
It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.
In the description of the present invention, it should be noted that, if the terms "upper", "lower", "inner", "outer", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings, or the azimuth or the positional relationship in which the inventive product is conventionally put in use, it is merely for convenience of describing the present invention and simplifying the description, and it is not indicated or implied that the apparatus or element referred to must have a specific azimuth, be configured and operated in a specific azimuth, and thus it should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, if any, are used merely for distinguishing between descriptions and not for indicating or implying a relative importance.
It should be noted that the features of the embodiments of the present invention may be combined with each other without conflict.
Referring to fig. 1 to 8, the present invention provides a lens driving apparatus 10, wherein the lens driving apparatus 10 includes a base 100, a supporting frame 200, a lens holder 300, a pair of conductive spring plates 400, a supporting suspension 500, a circuit board 600, an image sensor 850, a focusing circuit board 700, a sharing magnetic steel 810, a focusing coil 820 and an anti-shake coil 830.
In this embodiment, the support frame 200 is suspended on the base 100, the lens holder 300 is suspended in the support frame 200 and is used for mounting the lens 20, a pair of conductive elastic pieces 400 are mutually insulated, the conductive elastic pieces 400 are elastically connected with the support frame 200 and the lens holder 300, and the lens holder 300 is suspended in the support frame 200 through the conductive elastic pieces 400, so that the lens holder 300 and the lens 20 mounted on the lens holder 300 can move up and down in the optical axis direction.
In this embodiment, the circuit board 600 is mounted on the base 100, the circuit board 600 includes a fixed portion 620 fixed on the base 100, and a movable portion 610 suspended on the base 100 and connected to the fixed portion 620, and the image sensor 850 is mounted on the movable portion 610; the supporting suspension wire 500 elastically connects the conductive elastic sheet 400 and the movable portion 610, so that the movable portion 610 is suspended on the base 100, and the movable portion 610 is suspended between the base 100 and the supporting frame 200 through the supporting suspension wire 500, so that the movable portion 610 can drive the image sensor 850 to move in a direction perpendicular to the optical axis.
In this embodiment, the focusing circuit board 700 is fixedly connected to the conductive spring 400 and the fixing portion 620, and electrically connects the conductive spring 400 and the fixing portion 620, and the shared magnetic steel 810 is fixedly disposed on the supporting frame 200.
Further, the focusing coil 820 is fixedly disposed at the outer side of the lens holder 300 and is electrically connected to the pair of conductive elastic pieces 400, the focusing coil 820 is electrically coupled to the shared magnetic steel 810 to drive the lens holder 300 to move along the optical axis direction, so as to implement an auto focusing function (AF) of the lens driving device 10, the anti-shake coil 830 is mounted on the movable portion 610, and the anti-shake coil 830 is electrically coupled to the shared magnetic steel 810 to drive the movable portion 610 to drive the image sensor 850 to move along the direction perpendicular to the optical axis, so as to implement an optical anti-shake function (OIS) of the lens driving device 10.
It can be understood that the supporting frame 200 and the lens holder 300 are elastically connected through the conductive spring 400, and the supporting suspension 500 elastically connects the conductive spring 400 and the movable portion 610, so that only the supporting function of supporting the movable portion 610 is provided through the supporting suspension 500, further, the circuit board 600 is mounted on the base 100, the focusing circuit board 700 is fixedly connected with the conductive spring 400 and the fixed portion 620, and the conductive spring 400 and the fixed portion 620 are electrically connected through the circuit board 600, thereby ensuring the stability and reliability of the electrical connection of the conductive spring 400, the focusing circuit board 700 and the circuit board 600.
Specifically, the shared magnet steel 810 is provided with four, and the four shared magnet steels 810 are arranged around the focusing coil 820 and symmetrically arranged around the center of the optical axis to form a uniform magnetic field, and the magnetizing direction of the shared magnet steel 810 is perpendicular to the optical axis.
In this embodiment, four mounting grooves 210 are formed on the supporting frame 200, the four mounting grooves 210 are distributed at four corners of the supporting frame 200, and the four shared magnetic steels 810 are fixed in the four mounting grooves 210 in a one-to-one correspondence.
In an embodiment, referring to fig. 2, 8 and 10, the focusing circuit board 700 includes an electrical connection portion 710 fixedly disposed on the conductive spring 400 and electrically connected to the conductive spring 400, a fixed connection portion 720 fixedly disposed on the supporting frame 200, and a main body portion 730, wherein one end of the main body portion 730 is connected to the electrical connection portion 710 and the fixed connection portion 720, and the other end is electrically connected to the fixed portion 620 of the circuit board 600, so as to electrically connect the conductive spring 400 and the circuit board 600, so as to form an electrical path with the focusing coil 820, the conductive spring 400, the focusing circuit board 700 and the circuit board 600.
Further, two electrical connection portions 710 are provided and electrically connected to the conductive spring pieces 400 in a one-to-one correspondence, and two fixing connection portions 720 are provided and symmetrically disposed with respect to the main body portion 730. Specifically, the focusing circuit board 700 is provided with an IC and a capacitor, and is soldered to the fixing portion 620 of the circuit board 600.
In an embodiment, referring to fig. 2, 6 and 7, the supporting suspension 500 is welded or injection-molded and embedded in the movable portion 610 and is electrically insulated from the movable portion 610, so that the supporting suspension 500 does not have a conductive function.
Further, the supporting suspension wires 500 may be metal wires, and the bottom of the supporting suspension wires 500 is welded or embedded in the base 100, however, in some embodiments, the supporting suspension wires 500 may be plastic supporting members, and the supporting suspension wires 500 are welded or embedded on the circuit board 600.
In an embodiment, referring to fig. 6 to 9, the conductive spring 400 includes a first arm 410 fixed to the lens holder 300 and far from the base 100, a second arm 420 fixed to the support frame 200 and far from the base 100, and a spring arm 430 connecting the first arm 410 and the second arm 420, that is, the lens holder 300 is suspended in the support frame 200 by the conductive spring 400, so that the lens holder 300 and the lens 20 mounted on the lens holder 300 can move up and down in the optical axis direction.
In this embodiment, the supporting suspension wires 500 are disposed on the two second arms 420 of each conductive spring 400. That is, the support suspension 500 is provided with four. Wherein four of the support suspension wires 500 are arranged centrally and symmetrically with respect to the optical axis.
In an embodiment, referring to fig. 6 to 9, one side of each conductive spring 400 is electrically connected to the focusing circuit board 700, and the second arm 420 includes a second arm 421 close to the focusing circuit board 700 and electrically connected to the focusing circuit board 700, and a second arm 422 far from the focusing circuit board 700, that is, each conductive spring 400 has only one external electrical connection path.
The second first arm 421 includes a first conductive portion 4212 electrically connected to the focusing circuit board 700, a first mounting portion 4211 connected to the supporting suspension 500, and a first fixing portion 4213 connecting the first conductive portion 4212 and the first mounting portion 4211, where the first fixing portion 4213 is fixedly arranged on the supporting frame 200, so as to implement an external electrical connection path through the second first arm 421. Specifically, the focusing circuit board 700 is a flexible board.
The second arm 422 includes a second mounting portion 4221 connected to the support suspension 500, and a second fixing portion 4222 connected to the second mounting portion 4221, the second fixing portion 4222 is fixedly provided to the support frame 200, and the second arm 422 does not have an external electrical connection path.
Of course, in some embodiments, a conductive portion may also be disposed on the second arm 422, and a flexible board adapted to the conductive portion may be configured to electrically connect the conductive spring 400 and the circuit board 600.
In an embodiment, referring to fig. 6 and 9, the supporting frame 200 is provided with a first mounting post 220 extending along the optical axis direction, and the first fixing portion 4213 and the second fixing portion 4222 are both mounted on the supporting frame 200 through the first mounting post 220, so as to facilitate the mounting of the conductive spring 400 on the supporting frame 200.
The lens holder 300 is provided with a second mounting post 310 extending along the optical axis direction, and the first arm 410 is mounted on the lens holder 300 through the second mounting post 310, so that the conductive spring 400 is convenient to be mounted on the lens holder 300.
Further, in this embodiment, the supporting frame 200 is provided with a receiving groove 230, at least a portion of the conductive spring 400 is received in the receiving groove 230, so as to facilitate installation of the conductive spring 400.
Specifically, the supporting frame 200 is further provided with four avoidance grooves 240 extending along the optical axis direction, the number of the avoidance grooves 240 is four and distributed at four corners of the supporting frame 200, and the supporting suspension wires 500 are provided with four and are respectively accommodated in the avoidance grooves 240, so that the installation and the arrangement of the supporting suspension wires 500 are facilitated.
In an embodiment, referring to fig. 2, 4 to 6 and 11, the circuit board 600 further includes a flexible portion 630, and the flexible portion 630 is capable of moving relative to the fixed portion 620 during the movement of the movable portion 610 along the direction perpendicular to the optical axis; the flexible portion 630 includes a first portion 631 attached to the movable portion 610, a second portion 632 connected to the first portion 631 and extending along the direction of the optical axis, a third portion 633 connected to the second portion 632 and extending around the optical axis, and a fourth portion 634 connecting the third portion 633 and the fixed portion 620, so that the electrical connection is led out through the flexible portion 630, and the stability and reliability of the electrical connection between the conductive dome 400 and the focusing circuit board 700 and the circuit board 600 can be ensured due to the large degree of freedom of movement of the flexible portion 630.
Specifically, the flexible portion 630 and the fixing portion 620 are both flexible boards, the fixing portion 620 includes a connection section 621 and a plugging section 622, the fourth portion 634 of the flexible portion 630 is connected with the plugging section 622, the connection section 621 is fixedly arranged on the base 100, and is connected with the plugging section 622 and the focusing circuit board 700, and the plugging section 622 is used for plugging and matching with the outside.
The third portion 633 includes a first extension 6331 and a second extension 6332, the support frame 200 includes a first side and a second side connected to each other, the first extension 6331 is connected to the second portion 632 and extends along a plane in which the first side is located, the second extension 6332 is connected to the first extension 6331 and extends along a plane in which the second side is located, and further, the second extension 6332 is disposed perpendicular to the first extension 6331.
In an embodiment, the movable portion 610 includes a first plate body 611 and a second plate body 612, the light receiving side of the first plate body 611 is provided with a placement groove 6111, the image sensor 850 is accommodated in the placement groove 6111, the glass plate 851 is covered on a notch of the placement groove 6111, the second plate body 612 is stacked on the first plate body 611, the second plate body 612 is provided with light shielding holes 6121 for avoiding light beams, and the anti-shake coils 830 are provided with four and are correspondingly distributed at four corners of the second plate body 612. Specifically, the first portion 631 of the flexible portion 630 is connected to the bottom surface of the first plate 611 and is electrically connected to the first plate 611.
In an embodiment, referring to fig. 1 and 2, the lens driving apparatus 10 further includes a pair of first elastic pieces 841 and a pair of second elastic pieces 842, and the lens holder 300 is further suspended in the supporting frame 200 by the first elastic pieces 841 and the second elastic pieces 842, and the conductive elastic pieces 400, the first elastic pieces 841 and the second elastic pieces 842 are all spring plate structures with deformation directions in the optical axis direction.
Specifically, one ends of the first elastic piece 841 and the second elastic piece 842 are fixed to a side of the lens holder 300 facing the base 100, and the other ends thereof are fixed to a side of the support frame 200 facing the base 100. Further, the pair of first elastic pieces 841 are disposed symmetrically about the center of the optical axis, the pair of second elastic pieces 842 are disposed symmetrically about the center of the optical axis, and the first elastic pieces 841 and the second elastic pieces 842 are disposed at intervals in the circumferential direction of the optical axis.
In this embodiment, the lens driving apparatus 10 further includes a housing 900 sleeved on the supporting frame 200 and fixedly supported on the base 100. The housing 900 forms a protection for the internal components of the lens driving apparatus 10, wherein the top wall of the supporting frame 200 is fixedly connected to the inner wall of the housing 900, so as to suspend the supporting frame 200 on the base 100.
Referring to fig. 1 to 13, the present invention further provides an electronic device, which includes a device body 30, a lens 20, and the lens driving device 10 according to any of the above embodiments, wherein the lens 20 is mounted on the device body 30 through the lens driving device 10. The electronic equipment can be selected from a mobile phone, a video camera, a computer and the like. Wherein, the lens 20 includes a lens barrel fixed on the lens holder 300 and a lens group fixed in the lens barrel.
The foregoing is merely exemplary of the invention, and it should be noted that modifications could be made by those skilled in the art without departing from the inventive concept, which would fall within the scope of the invention.

Claims (10)

1. A lens driving apparatus, characterized in that the lens driving apparatus comprises:
a base;
a support frame suspended on the base;
the lens bracket is suspended in the supporting frame and is used for installing a lens;
the pair of conductive elastic pieces are arranged in an insulating manner and are elastically connected with the supporting frame and the lens bracket;
the circuit board is arranged on the base and comprises a fixed part fixedly arranged on the base and a movable part which is suspended on the base and connected with the fixed part;
an image sensor mounted on the movable section;
a supporting suspension wire elastically connecting the conductive spring plate and the movable part;
the focusing circuit board is fixedly connected with the conductive elastic sheet and the fixing part and electrically connects the conductive elastic sheet and the fixing part;
the shared magnetic steel is fixedly arranged on the supporting frame;
the focusing coil is fixedly arranged on the outer side of the lens bracket and is respectively and electrically connected with the pair of conductive elastic sheets, and the focusing coil is coupled with the shared magnetic steel electric field to drive the lens bracket to move along the optical axis direction; and
and the anti-shake coil is arranged on the movable part and is coupled with the shared magnetic steel electric field to drive the movable part to drive the image sensor to move along the direction vertical to the optical axis.
2. The lens driving apparatus according to claim 1, wherein the supporting suspension wire is welded or injection-molded to be embedded in the movable portion and is electrically insulated from the movable portion.
3. The lens driving apparatus according to claim 2, wherein the conductive elastic piece includes a first arm fixed to the lens holder and apart from the base, a second arm fixed to the support frame and apart from the base, and an elastic arm connecting the first arm and the second arm;
and the two second arms of each conductive elastic sheet are respectively provided with the supporting suspension wires.
4. A lens driving device according to claim 3, wherein one side of each conductive spring is electrically connected to the focusing circuit board, and the second arm comprises a second first arm which is close to the focusing circuit board and is electrically connected to the focusing circuit board, and a second arm which is far away from the focusing circuit board;
the second first arm comprises a first conductive part electrically connected with the focusing circuit board, a first mounting part connected with the supporting suspension wire and a first fixing part connected with the first conductive part and the first mounting part, and the first fixing part is fixedly arranged on the supporting frame;
the second arm comprises a second installation part connected with the supporting suspension wire and a second fixing part connected with the second installation part, and the second fixing part is fixedly arranged on the supporting frame.
5. The lens driving apparatus according to claim 4, wherein the support frame is provided with a first mounting post extending in the optical axis direction, and the first fixing portion and the second fixing portion are each mounted to the support frame through the first mounting post;
the lens support is provided with a second mounting column extending along the optical axis direction, and the first arm is mounted on the lens support through the second mounting column.
6. A lens driving device according to claim 3, wherein the supporting frame is provided with a receiving groove, and at least part of the conductive spring sheet is received in the receiving groove.
7. The lens driving apparatus according to claim 3, wherein the supporting frame is further provided with four avoidance grooves extending in the optical axis direction, the avoidance grooves are distributed at four corners of the supporting frame, and the supporting suspension wires are provided with four avoidance grooves and are respectively accommodated in the avoidance grooves.
8. The lens driving apparatus according to claim 1, wherein the wiring board further includes a flexible portion that is movable with respect to the fixed portion during movement of the movable portion in a direction perpendicular to the optical axis;
the flexible part comprises a first part attached to the movable part, a second part connected with the first part and extending along the direction of the optical axis, a third part connected with the second part and extending around the optical axis, and a fourth part connected with the third part and the fixed part.
9. The lens driving apparatus according to any one of claims 1 to 8, wherein the focusing circuit board comprises an electrical connection portion fixed to the conductive elastic sheet and electrically connected to the conductive elastic sheet, a fixed connection portion fixed to the supporting frame, and a main body portion, wherein one end of the main body portion is connected to the electrical connection portion and the fixed connection portion, and the other end is electrically connected to the fixed portion of the circuit board.
10. An electronic apparatus comprising an apparatus body, a lens, and the lens driving device according to any one of claims 1 to 9, the lens being mounted to the apparatus body through the lens driving device.
CN202310847218.XA 2023-07-11 2023-07-11 Lens driving device and electronic equipment Pending CN116991019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310847218.XA CN116991019A (en) 2023-07-11 2023-07-11 Lens driving device and electronic equipment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310847218.XA CN116991019A (en) 2023-07-11 2023-07-11 Lens driving device and electronic equipment

Publications (1)

Publication Number Publication Date
CN116991019A true CN116991019A (en) 2023-11-03

Family

ID=88531213

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310847218.XA Pending CN116991019A (en) 2023-07-11 2023-07-11 Lens driving device and electronic equipment

Country Status (1)

Country Link
CN (1) CN116991019A (en)

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