CN113341530B

CN113341530B - Lens driving device, imaging device, and electronic apparatus

Info

Publication number: CN113341530B
Application number: CN202110662296.3A
Authority: CN
Inventors: 袁斌; 罗来玉; 吴攀德
Original assignee: New Shicoh Motor Co Ltd
Current assignee: New Shicoh Motor Co Ltd
Priority date: 2021-06-15
Filing date: 2021-06-15
Publication date: 2022-07-05
Anticipated expiration: 2041-06-15
Also published as: CN113341530A

Abstract

The invention relates to a lens driving device, an imaging device and an electronic apparatus. The magnetic element positioning device solves the technical problems that the existing magnetic element is inaccurate in positioning and the like. The lens driving device includes a housing; the gasket is fixed on the inner top of the shell; the magnetic element is fixed on the inner wall of the shell; the positioning columns are four in number, and two positioning columns are connected to each of two opposite side edges of the gasket respectively; the magnetic element positioning groove is formed by two positioning columns which are positioned on the same side edge of the gasket body, and the magnetic element is limited in the magnetic element positioning groove; a lens carrier built into the housing; the two winding posts are connected to the outer peripheral surface of the lens carrier and extend outwards in the radial direction to any one side edge of the two remaining side edges of the gasket or the lower parts of the two remaining side edges of the gasket; and the wrapping post protection structure is arranged on any one side edge or two side edges of the rest two side edges of the gasket so as to prevent the outer end part of the wrapping post from contacting with the inner wall of the shell. The invention has the advantages that: the assembly efficiency is improved.

Description

Lens driving device, imaging device, and electronic apparatus

Technical Field

The invention belongs to the technical field of camera motors, and particularly relates to a lens driving device, a camera device and electronic equipment.

Background

The focusing motor is driven by the magnet to generate Lorentz force so as to push the lens to focus.

The magnet is generally directly fixed on the inner wall of the shell, and the magnet is matched with the coil wound on the side of the carrier to achieve the driving purpose.

The existing magnet is directly fixed on the inner wall of the shell, the magnet is easily deviated from the installation and fixing position due to the fact that the existing magnet is actually positioned, final thrust is influenced, and meanwhile, the fixing and assembling requirements of the fixing mode on the magnet are high, and the assembling efficiency is low due to the fact that the requirements are high.

Secondly, its utilization of lower shell fragment locates the evagination wrapping post of carrier outer peripheral face and supplies power to the coil, and its radial evagination of current wrapping post then can lead to wrapping post and shell striking when anti falling, produces the dust easily, influences the final quality of making a video recording.

Disclosure of Invention

An object of the present invention is to provide a lens driving device, an imaging device, and an electronic apparatus that can solve the above problems.

In order to achieve the purpose, the invention adopts the following technical scheme:

the lens driving device comprises a housing;

the gasket is fixed on the inner top of the shell;

the magnetic element is fixed on the inner wall of the shell;

the positioning columns are four in number, and two positioning columns are connected to each of two opposite side edges of the gasket respectively;

the positioning column is parallel to the optical axis and extends towards the lower side of the optical axis;

the magnetic element positioning groove is formed by two positioning columns positioned on the same side edge of the gasket body, and the magnetic element is limited in the magnetic element positioning groove;

a lens carrier built into the housing;

the two winding posts are connected to the peripheral surface of the lens carrier and extend outwards in the radial direction to any one side edge of the rest two side edges of the gasket or below the two side edges;

and the wrapping post protection structure is arranged on any one side edge or two side edges of the rest two side edges of the gasket so as to prevent the outer end part of the wrapping post from contacting with the inner wall of the shell.

In the lens driving device, the two wrapping posts are respectively connected to the outer surfaces of two opposite sides of the lens carrier, and each side of the two remaining sides of the gasket is respectively provided with a wrapping post protection structure, and one wrapping post protection structure corresponds to one wrapping post.

In the lens driving device, the winding post protection structure includes a retaining wall disposed on each side edge of the two remaining side edges of the pad, the outer standing surface of the retaining wall is located outside the outer end surface of the winding post, and the orientation of the retaining wall is consistent with that of the positioning post.

In the lens driving device, the retaining wall extends downwards to above the winding post towards the optical axis.

In the above lens driving device, the retaining wall is provided with an avoiding opening for the winding post to extend into, and the winding post extends into the avoiding opening.

In the lens driving device, the two winding posts are connected to one of the two opposite sides of the lens carrier.

In the lens driving device, the positioning column has an inner flush plane flush with an inner wall surface of the gasket; the positioning column is provided with an outer vertical face positioned on the inner side of the outer wall face of the gasket.

In the lens driving device described above, the present device further includes:

the base is used for sealing the lower side opening of the shell;

the upper elastic sheet is connected with the gasket and the upper end surface of the carrier;

the lower elastic sheet is connected to the lower end faces of the base and the carrier, so that the carrier is arranged in a cavity formed by the base and the shell.

In the lens driving device, the upper spring plate includes an inner ring;

four wrist parts, and the inner end of each wrist part is connected with the inner ring;

the outer end of each wrist part is connected with a fixing part;

two wrists of the four wrists are the same in structure and distributed on the first diagonal line, and the other two wrists are the same in structure and distributed on the second diagonal line;

the outer end of each wrist part is connected with a fixing part;

the inner end of each wrist is provided with a vertical connecting part which is extended outwards along the radial direction of the inner ring, the vertical connecting parts of the wrist distributed on the first diagonal line are distributed along the X axis, and the vertical connecting parts of the wrist distributed on the second diagonal line are distributed along the Y axis.

In the lens driving device, the wrist structures distributed on the first diagonal line are different from the wrist structures distributed on the second diagonal line.

In the lens driving device, the outer circumferential surface of the inner ring is connected with four convex reinforced parts, the inner end of each wrist part is respectively and vertically connected with one convex reinforced part, and the convex reinforced parts and the outer side of the inner ring form dispensing holes.

In the above lens driving device, the vertical connecting portion is vertically connected to the outward convex reinforcing portion.

In the lens driving device, the outer ends of the two wrist parts distributed on the first diagonal line are horizontally and vertically connected with the corresponding fixing parts; the outer ends of the two wrist parts distributed on the second diagonal line are horizontally and obliquely connected with the corresponding fixing parts.

The invention further provides an image pickup apparatus having the lens driving apparatus.

The invention further provides an electronic device which is provided with the camera device.

Compared with the prior art, the invention has the advantages that:

its can prevent that the outer tip of wrapping post leads to the inner wall contact with the shell owing to falling, ensures the safe in utilization and the power supply stability of wrapping post, simultaneously, can also prevent that wrapping post and shell striking from leading to producing the dust, finally improves the quality of making a video recording.

Utilize the reference column to carry out the position of tip face to magnetic element and prescribe a limit to, promptly, play benchmark location effect for magnetic element can accurate positioning, and improve the packaging efficiency, has reduced the disability rate in the assembling process by a wide margin, and can ensure magnetic thrust of magnetic element, prevent to lead to the less phenomenon of magnetic force with the coil dislocation.

Drawings

Fig. 1 is a schematic cross-sectional structural view of a lens driving apparatus provided in the present invention.

Fig. 2 is a schematic structural diagram of the lens driving device provided by the invention with an avoiding notch on a retaining wall.

Fig. 3 is a schematic view of the lens driving device of the present invention with the base removed and the lens driving device facing upward.

Fig. 4 is a schematic longitudinal sectional structure of the gasket provided by the present invention.

Fig. 5 is an enlarged schematic view of a portion a in fig. 4.

Fig. 6 is a schematic top view of a gasket according to the present invention.

Fig. 7 is an enlarged schematic view of B in fig. 6.

Fig. 8 is a schematic view of a magnetic element provided by the present invention installed in a spacer.

Fig. 9 is a schematic structural view of the gasket provided with the retaining wall.

Fig. 10 is a schematic view of the state in which fig. 8 is mounted in the housing.

Fig. 11 is a schematic view of the upper spring plate structure provided in the present invention.

Fig. 12 is a schematic view of the base structure provided by the present invention.

Fig. 13 is a schematic view of the retaining wall structure of the foundation provided by the present invention.

Fig. 14 is a schematic top view of a lens driving device provided in the present invention.

Fig. 15 is a schematic structural diagram of an image pickup apparatus provided by the present invention.

Fig. 16 is a schematic structural diagram of an electronic device provided in the present invention.

Detailed Description

The following are specific embodiments of the present invention and are further described with reference to the drawings, but the present invention is not limited to these embodiments.

Example one

As shown in fig. 1 and fig. 12-14, the lens driving device includes a base 1, a housing 2 fastened to the base 1, and a carrier z1, wherein the carrier z1 is disposed in a cavity formed by the base 1 and the housing 2.

Specifically, the base 1 of the present embodiment includes a base frame f 1;

a base retaining wall f2 arranged on the base frame f 1;

preferably, the base frame f1 and the base retaining wall f2 of the present embodiment as shown in fig. 12-13 are integrally formed by injection molding, not only improving the manufacturing efficiency, but also improving the structural strength. And the base retaining wall f2 is perpendicular to the base frame f 1.

Of course, a reinforcing frame (not shown) is embedded inside the base frame f1 to reinforce the radial and axial structure of the base frame f 1.

The conductive element f3 is embedded in the base retaining wall f2 and the electrical terminal of the conductive element f3 extends out of the base retaining wall f 2. The conductive element f3 is a strip-shaped metal sheet, and the conductive element f3 is embedded in the base retaining wall f2, so that the traditional FPC board can be replaced, the manufacturing cost is reduced, the structural strength of the base retaining wall f2 can be improved, and the design is more reasonable.

Preferably, the base retaining wall f2 is formed by injection molding and embeds the conductive element f 3. Namely, direct injection molding and embedding, which can improve the processing efficiency.

Next, the conductive element f3 is embedded in the base at a central position in the thickness of the retaining wall f 2. Ensuring the insulating performance and preventing the phenomena of electric leakage, contact and the like caused by the contact with the shell.

In addition, the two surfaces of the base retaining wall f2 in the thickness direction are respectively provided with an inner groove body f20, and the inner groove body f20 exposes the corresponding surface of the conductive element f 3. Since the conductive element f3 needs to be clamped during injection molding, that is, the inner groove body f20 is formed for a clamping reserved position after injection molding, the position accuracy of the conductive element f3 can be ensured.

The exposed surface of the conductive element f3 is connected with a sensor f21, the sensor f21 is a hall sensor, and the sensor f21 is positioned in an inner groove body f20 on the inner surface of the base retaining wall f2, so that the interference caused by the outward protrusion can be prevented, and the volume can be further reduced.

During injection molding, the conductive element f3 is clamped in advance, then injection molding is started, and after the injection molding is finished, the sensor is fixed to the conductive element f 3.

Further, as shown in fig. 1, the carrier is suspended in the cavity by the upper spring s and the lower spring g. Specifically, the upper spring s is connected to the upper surface of the carrier and the pad d on the top inside the housing 2, and the lower spring g is connected to the lower surfaces of the base 1 and the carrier z 1. The lower spring g of this embodiment is two pieces, and each lower spring g is connected to a winding post z18 to electrically connect with the coil 4 wound on the side of the carrier z 1.

As shown in fig. 3 and 8, there are two winding posts z 18.

The magnetic element 3 is fixed on the inner wall of the shell 2 and is matched with the coil 4 to generate thrust;

four positioning columns d2, two positioning columns d2 are respectively connected to each of two opposite side edges of the gasket d;

the positioning column d2 is parallel to the optical axis a and is extended towards the lower side of the optical axis a;

a magnetic element positioning slot d0 formed by two positioning posts d2 located on the same side of the gasket body d1, wherein the magnetic element is confined in the magnetic element positioning slot d 0;

as shown in fig. 1 and 2, a lens carrier z1, built into the housing 2;

the winding post z18 has two and is connected with the outer peripheral surface of the lens carrier z1, the winding post z18 extends radially outwards to any one side or below two sides of the rest two sides of the gasket d;

and a winding post protection structure which is arranged on any one side or two sides of the rest two sides of the gasket d so as to prevent the outer end part of the winding post z18 from contacting with the inner wall of the shell 2. The winding post protective structure can prevent the outer end of the winding post z18 from contacting the inner wall of the shell due to falling, and ensure the use safety of the winding post z 18.

Two wrapping posts z18 are respectively connected to the outer surfaces of two opposite sides of the lens carrier z1, i.e. two sides are led out, each side of the two remaining sides of the gasket d is respectively provided with a wrapping post protection structure, and one wrapping post protection structure corresponds to one wrapping post z 18. The winding post protective structures on two sides can respectively protect the winding post z 18.

Specifically, as shown in fig. 3, 4, 8 and 9, the winding post protection structure of the present embodiment includes a retaining wall d3 disposed on each of the two remaining sides of the spacer d, the outer standing surface of the retaining wall d3 is located outside the outer end of the winding post z18, and the orientation of the retaining wall d3 is consistent with the orientation of the positioning post d 2.

The retaining wall d3 extends downwards to the optical axis a to above the winding post z 18.

Further, as shown in fig. 3 and 11, the upper spring s includes an inner ring s 1; the inner ring s1 is fixed to the upper end face of the carrier. Secondly, a plurality of outer concave glue grooves s10 distributed in a circumferential mode are formed in the inner side of the inner ring s 1. The outer concave glue groove s10 can play a role in glue climbing and fixing with the carrier through glue.

The wrist portions 2 having four and inner ends connected to the outer side, i.e., the outer circumferential surface, of the inner race s 1; the wrist section 2 is suspended to provide elastic recovery.

Preferably, two wrist portions 2 of the four wrist portions 2 of the present embodiment have the same structure and are distributed on the first diagonal line s01, and the other two wrist portions 2 have the same structure and are distributed on the second diagonal line s 02.

The first diagonal line s01 and the second diagonal line s02 are distributed in a cross shape, and the intersection point coincides with the axis of the inner ring.

A fixing part s3 connected to the outer end of the wrist part s 2; the fixing portion s3 is fixed to the housing so that the carrier can be suspended in the chamber formed by the housing and the base.

The fixing portion s3 has a dispensing hole for fixing and connecting with a sink or a pad on the housing.

An outer convex reinforcing part s4 connected to the outer side of the inner ring s1, and the outer sides of the outer convex reinforcing part s4 and the inner ring s1 form glue dispensing holes s 0; the design of the convex reinforcing part s4 can strengthen the structure, and meanwhile, glue can be stored in the glue dispensing hole s0, so that the fixing stability of the inner ring is further improved.

The inner end of the wrist s2 is connected to and perpendicular to the outwardly convex reinforcement s 4. The wrist portion 2 is connected to the protruding reinforcement portion s4, and due to the design of the dispensing hole s0, the connection between the wrist portion and the inner ring s1 is prevented from being loosened due to frequent movement of the carrier, so that the fixing stability of the upper spring plate for driving the lens is improved, and the torsion resistance of the wrist portion 2 is ensured.

The dispensing hole s0 is a triangular dispensing hole.

In an optimized scheme, the convex reinforced parts s4 of the embodiment are distributed circumferentially.

Preferably, the outer convex reinforcement portion s4 of the present embodiment has an L shape, and both ends of the outer convex reinforcement portion s4 are connected to the outside of the inner race s 1. The structure is characterized in that the outward convex reinforcing part is added on the basis of the original inner ring, so that the strength of the original inner ring is ensured, and the fixing stability of the wrist part can be further improved.

Second, the inner end of the wrist s2 is perpendicularly connected to the long straight side of the outwardly convex reinforcing portion s 4. Further, the wrist portion 2 has a vertical connecting portion s20 elongated and located outside the long straight side of the outer convex reinforcement portion s4, the vertical connecting portion s20 is elongated radially outward along the inner race s1 and the vertical connecting portion s20 is vertically connected to the outer convex reinforcement portion s 4. The perpendicular connection prevents twisting of the wrist s2 after a force is applied.

In addition, the vertical connecting portions s20 of the wrist portions 2 distributed on the first diagonal line s01 are distributed along the X axis, and the vertical connecting portions s20 of the wrist portions 2 distributed on the second diagonal line s02 are distributed along the Y axis. And

the configuration of the wrist s2 distributed over the first diagonal line s01 is different from the configuration of the wrist s2 distributed over the second diagonal line s 02.

By the vertical connecting portions s20 distributed in different directions, the falling resistance of the upper elastic sheet can be improved, and the elastic performance of the upper elastic sheet is further improved.

And different structural designs can avoid the structure of the carrier so as to meet the assembly requirement.

Preferably, the outer ends of two of the diagonally opposite arm portions 2 of the four arm portions 2 are horizontally and vertically connected to the corresponding anchor portions s3, and the outer ends of the remaining diagonally opposite arm portions 2 are horizontally and obliquely connected to the corresponding anchor portions s 3.

Next, the outer end of the wrist portion 2 is connected to the fixing portion 3 at the position 1/4-1/3 of the inner edge s 21. By utilizing the structure, the upper elastic sheet for driving the lens can be balanced to reach a K value so as to meet the use requirement.

An outer groove s10 is formed on the inner side between the two outer convex reinforcing parts s4 to ensure structural strength. It reduces the width of the inner race because of the design of the outer bead s 10.

Glue dispensing grooves which are in one-to-one correspondence with the glue dispensing holes s0 are formed in the upper end face of the carrier so as to further improve the connection strength of the carrier and the upper elastic sheet for lens driving, and glue in the glue dispensing grooves forms glue columns after being cured.

As shown in fig. 4-10, the gasket d includes a gasket body d1, and the gasket body d1 has a square frame structure and is manufactured by injection molding.

Next, a metal reinforcement is embedded inside the gasket body d1 to ensure the structural strength of the positioning gasket.

Further, the upper end face of the gasket body d1 is an upper plane, the lower end face of the gasket body d1 is a lower plane, the upper plane and the lower plane are parallel to each other, and when the gasket is installed, the upper end face of the gasket body d1 is attached to the inner top face of the shell.

Utilize reference column d2 to carry out the position of end face to magnetic element and prescribe a limit to, promptly, play the benchmark location effect for magnetic element can accurate positioning, and improve the packaging efficiency, reduced the disability rate in the assembling process by a wide margin, and can ensure magnetic thrust of magnetic element, prevent to misplace with the coil and lead to the phenomenon that magnetic force is less.

The magnetic element 3 is an elongated block magnet.

Furthermore, two ends of the magnetic element are respectively matched with the respective positioning posts d2 to play a positioning role.

Preferably, two positioning posts d2 on the same side have their facing inner side surfaces as contact flat surfaces so as to match with the end surfaces of the two ends of the magnetic element for positioning.

Preferably, the axial length of the positioning pillar d2 of the present embodiment is equal to or less than the height of the magnetic element along the axial direction of the optical axis. The height does not exceed the height of the magnetic element along the axial direction of the optical axis, which can facilitate the assembly of the magnetic element and prevent the positioning post d2 from being too high to cause unnecessary contact and even interference.

Preferably, each locating post d2 has an inner flush surface d10 which is flush with the inner wall surface of the gasket body d 1. So as to facilitate processing and manufacturing, and simultaneously, can also avoid the interference phenomenon.

Next, each positioning post d2 has an outer vertical surface d11 located on the inner side of the outer wall surface of the gasket body d1, that is, the outer vertical surface d11 of the positioning post d2 and the inner wall surface of the housing form a glue storage space, so as to further improve the gasket fixing stability.

In addition, the inner side surfaces of the two positioning columns d2 on the same side are contact flat surfaces d13, so that the two positioning columns d2 are matched with the end surfaces of the two ends of the magnetic element conveniently to realize positioning. The contact flat surface d13 enlarges the contact surface with the magnetic element, and when the magnetic element is assembled, the magnetic element can be accurately assembled in place by means of surface-to-surface matching.

In addition, a chamfer d12 is arranged at a point of each positioning column d2 far away from the gasket body d 1. The chamfer is any one of a bevel chamfer and a circular arc chamfer, which can facilitate the magnetic element to be clamped into the magnetic element positioning groove d0, and plays a guiding role.

In addition, in order to further enable the gasket to be more stably fixed to the housing, a dispensing notch is formed in the circumferential outer wall surface of the gasket body d 1.

In the present embodiment

The gasket body d1 is first fixed to the inner top outer edge of the housing and the top side of the inner wall surface thereof by using an adhesive or the like.

Then, two ends of the magnetic element are respectively faced to the respective positioning posts d2, and then the magnetic element is clamped in the magnetic element positioning slot d0, and for reinforcement, a glue layer is arranged between the outer surface of the magnetic element and the inner wall surface of the shell to fix the magnetic element.

In addition, the retaining wall d3 on the gasket and the base retaining wall f2 on the base are mutually retreated to prevent interference.

The magnetic element 3 arranged on the inner wall of the shell 2 and the spacer d1 cooperate with the coil 4 to generate a lorentz force to drive the carrier z1 to move axially along the optical axis a, so that the focusing function is realized.

Example two

The structure and principle of the present embodiment are basically the same as those of the first embodiment, and the different structure is as follows: two winding posts z18 are connected to one of two opposite sides of the lens carrier z1, i.e. one side is led out.

EXAMPLE III

The structure and principle of the present embodiment are basically the same as those of the first embodiment, and the different structures are as follows: as shown in fig. 1, an avoiding opening d30 into which the winding post z18 extends is formed in the retaining wall d3, and the winding post z18 extends into the avoiding opening d 30.

Example four

Based on the first to third embodiments, as shown in fig. 15, the present embodiment provides an image pickup apparatus having the lens driving apparatus described in the second embodiment or the second embodiment. Such as a module with a lens, etc.

EXAMPLE five

Based on the fourth embodiment, as shown in fig. 16, the present embodiment provides an electronic apparatus having the image pickup device described in the third embodiment. Such as a cell phone or the like.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.

Claims

1. Lens driving device, comprising a housing (2);

the gasket (d) is fixed at the inner top of the shell (2);

the magnetic element (3) is fixed on the inner wall of the shell (2); characterized in that, the lens driving device further comprises:

four positioning posts (d 2), two positioning posts (d 2) are respectively connected on each of two opposite side edges of the gasket (d);

the positioning column (d 2) is parallel to the optical axis (a) and is extended towards the lower side of the optical axis (a);

a magnetic element positioning slot (d 0) formed by two positioning posts (d 2) positioned on the same side of the gasket body (d 1), wherein the magnetic element is limited in the magnetic element positioning slot (d 0);

a lens carrier (z 1) built into the housing (2);

two winding posts (z 18) connected to the outer peripheral surface of the lens carrier (z 1), wherein the winding posts (z 18) extend radially outwards to any one side or below two sides of the rest two sides of the gasket (d);

and the winding post protection structure is arranged on any one side edge or two side edges of the rest two side edges of the gasket (d) so as to prevent the outer end part of the winding post (z 18) from contacting the inner wall of the shell (2).

2. The lens driving device as claimed in claim 1, wherein two winding posts (z 18) are respectively connected to the outer surfaces of two opposite sides of the lens carrier (z 1), and a winding post protection structure is respectively provided at each of the remaining two sides of the pad (d), one winding post protection structure corresponding to one winding post (z 18).

3. The lens driving device as claimed in claim 2, wherein the winding post protection structure comprises a retaining wall (d 3) disposed on each side of the remaining two sides of the pad (d), the outer standing surface of the retaining wall (d 3) is located outside the outer end of the winding post (z 18) and the orientation of the retaining wall (d 3) is consistent with that of the positioning post (d 2).

4. The lens driving device as claimed in claim 3, wherein said retaining wall (d 3) extends downward toward the optical axis (a) to above the winding post (z 18).

5. The lens driving device as claimed in claim 3, wherein the retaining wall (d 3) is formed with an avoiding opening (d 30) for the winding post (z 18) to extend into, and the winding post (z 18) extends into the avoiding opening (d 30).

6. The lens driving device as claimed in claim 1, wherein two winding posts (z 18) are connected to one of two opposite sides of the lens carrier (z 1).

7. The lens driving device as claimed in claim 1, wherein the positioning post (d 2) has an inner flush surface (d 10) flush with an inner wall surface of the spacer (d); the positioning post (d 2) is provided with an outer vertical surface (d 11) positioned on the inner side of the outer wall surface of the gasket (d).

8. The lens driving device according to claim 1, characterized in that the device further comprises:

the base (1) is used for closing the lower side opening of the shell (2);

the upper elastic sheet(s) is connected to the gasket (d) and the upper end surface of the carrier (z 1);

and the lower elastic sheet (g) is connected to the lower end faces of the base (1) and the carrier (z 1) so that the carrier (z 1) is arranged in a cavity formed by the base (1) and the shell (2).

9. The lens driving device according to claim 8, wherein the upper spring(s) comprises an inner ring (s 1);

a wrist (s 2) having four and an inner end of each wrist (s 2) connected to the inner race (s 1);

the outer end of each wrist (s 2) is connected with a fixing part (s 3);

two of the four wrists (s 2) (s 2) are structurally identical and distributed on a first diagonal line (s 01), and the other two wrists (s 2) are structurally identical and distributed on a second diagonal line (s 02);

the outer end of each wrist (s 2) is connected with a fixing part (s 3);

the inner end of each wrist (s 2) has a vertical connecting portion (s 20) extending radially outward along the inner ring (s 1), a wrist (s 2) disposed on a first diagonal line (s 01) with the vertical connecting portion (s 20) disposed along the X-axis, and a wrist (s 2) disposed on a second diagonal line (s 02) with the vertical connecting portion (s 20) disposed along the Y-axis.

10. The lens driving device as claimed in claim 9, wherein four convex reinforcement portions (s 4) are coupled to an outer circumferential surface of the inner ring (s 1), an inner end of each of the wrist portions (s 2) is perpendicularly coupled to a convex reinforcement portion (s 4), and the convex reinforcement portion (s 4) and an outer side of the inner ring (s 1) form dispensing holes (s 0).

11. The lens driving device according to claim 10, wherein the vertical connecting portion (s 20) is vertically connected to the convex reinforcement portion (s 4).

12. The lens driving device as claimed in claim 9, wherein the two wrist portions (s 2) disposed on the first diagonal line (s 01) are connected with the corresponding fixing portion (s 3) at the outer ends thereof in a horizontal and vertical manner; the outer ends of the two wrist parts (s 2) distributed on the second diagonal line (s 02) are horizontally and obliquely connected with the corresponding fixing parts (s 3).

13. An image pickup apparatus comprising the lens driving apparatus according to any one of claims 1 to 12.

14. An electronic apparatus comprising the imaging device according to claim 13.