CN217034422U - Base assembly and lens driving mechanism - Google Patents

Abstract

The utility model discloses a lens driving mechanism and a base assembly. The base comprises a base body and a plurality of bosses, the bosses are connected to the top surface of the base body, and ball grooves are formed in the bosses. The plurality of balls are respectively and simultaneously located in the plurality of ball grooves and the plurality of grooves, the reeds comprise inner rings, outer rings and spring wires, the inner rings are located in the outer rings and connected to the anti-shaking platform, and the outer rings are connected to the base body. The spring wire has elasticity and is connected inner circle and outer lane respectively, and the reed is used for restricting the recess of anti-shake platform and breaks away from the ball. According to the utility model, the anti-shake platform is provided with the plurality of groups of coils, and when the lens shakes, the plurality of groups of coils are matched with the plurality of groups of magnets on the frame to drive the anti-shake platform to move along the direction vertical to the optical axis, so that an imaging chip on the anti-shake platform is aligned with the lens along the optical axis direction, and the image quality of a shot image caused by the shaking of the lens is prevented.

Description

Base assembly and lens driving mechanism

Technical Field

The utility model relates to the field of optical drive, in particular to a base assembly and a lens driving mechanism.

Background

With the development of technology, many electronic devices today have a function of taking pictures or recording videos. The use of these electronic devices is becoming more common and the design direction of these electronic devices is being developed to be more convenient and thinner to provide more choices for users.

In practice, in order to adapt to photographing of various scenes, the lens needs to be continuously focused, and the anti-shake lens needs to be prevented during focusing or photographing. In the prior art, a lens driving device is generally used to drive a lens to move in three dimensions, i.e. in an optical axis direction and two mutually perpendicular directions perpendicular to the optical axis, wherein the lens is moved in the optical axis direction mainly for focusing and the lens is moved in the perpendicular optical axis direction for anti-shake. The conventional lens driving apparatus generally includes a housing, a frame, a carrier, an upper spring, a lower spring, a plurality of suspension wires, and a base, wherein the housing and the base cooperate to provide a receiving space for mounting the frame and the carrier. The frame is provided with a plurality of groups of magnets and is also provided with a hollow structure. The carrier is used for installing the camera lens, installs in the hollow structure of frame, and the carrier is equipped with a set of coil and is used for cooperating the magnetite on the frame with drive carrier and camera lens along the motion of optical axis direction. The upper spring plate is connected with the top of the frame and the carrier, while the lower spring plate is connected with the bottom of the frame and the carrier, and the upper spring plate and the lower spring plate can enable the frame and the carrier to be movably connected. The suspension wires are connected with the base and the upper reed and used for enabling current on the base to be transmitted to the upper reed, and external current can be transmitted to the coil on the carrier from the base, the suspension wires, the upper reed, the frame and the lower reed in sequence. In addition, the base is provided with another two groups of coils, the two groups of coils can be matched with the magnets on the frame to drive the carrier and the lens to move along the direction vertical to the optical axis, and when the lens shakes, namely the lens deviates from the imaging chip, the two groups of coils are matched with the magnets of the frame to drive the carrier and the lens to move along the direction vertical to the optical axis and enable the lens to be aligned with the imaging chip along the optical axis.

Therefore, in the prior art, the carrier and the lens are required to be driven to move along the direction vertical to the optical axis in order to prevent the lens from shaking, and the lens is aligned with the imaging chip along the optical axis direction, but since the volume and the weight of the carrier and the lens are large, the accurate control of the movement distance of the carrier and the lens has certain difficulty, and the lens driving device capable of efficiently preventing the shaking is required to be involved.

SUMMERY OF THE UTILITY MODEL

An object of the present invention is to provide a base assembly and a lens driving mechanism to solve the above-mentioned problems in the prior art.

In order to solve the above problems, according to an aspect of the present invention, there is provided a base assembly applied to a lens driving mechanism, the lens driving mechanism including an anti-shake platform, a circuit board, a motor and a housing, the anti-shake platform having a plurality of grooves at a bottom thereof, the circuit board being cylindrical and surrounding the anti-shake platform, the motor being mounted in the cylinder of the circuit board, the motor including a carrier, a frame and a housing, the frame having a central hole and being mounted in the housing, the carrier being movably mounted in the central hole of the frame, the carrier being used for mounting a lens, the base assembly including:

the base comprises a base body and at least three bosses, the at least three bosses are arranged at intervals and connected to the top surface of the base body, ball grooves are formed in the bosses, the ball grooves are respectively arranged opposite to the grooves along the optical axis direction, and the base body is used for being matched with the shell to form an accommodating space for accommodating the motor and the anti-shake platform;

the balls are respectively and simultaneously positioned in the ball grooves and the grooves, and the ball grooves and the grooves are respectively matched with the balls so that the anti-shake platform can be connected to the base in a sliding manner;

the reed comprises an inner ring, an outer ring and a spring wire, the inner ring is located in the outer ring and connected to the anti-shake platform, the outer ring is connected to the base body, the spring wire has elasticity and is respectively connected with the inner ring and the outer ring, and the reed is used for limiting the groove of the anti-shake platform to be separated from the ball.

In one embodiment, the base body is rectangular, the number of the bosses is four, and the bosses are respectively positioned at four corners of the base body;

the base body is provided with reed mounting positions which are positioned in an area enclosed by the four bosses.

In one embodiment, the reed further comprises a first connecting piece, one end of the first connecting piece is connected with the inner periphery of the outer ring, and the other end of the first connecting piece is bent towards the base body along the optical axis direction and is connected with the spring wire;

the reed installation site includes:

a first portion that is annular and located within an area of the base body surrounded by the four bosses;

a second portion formed by being recessed from the base top surface along an inner circumference of the first portion, the second portion being for placing the spring wire and the inner race.

In one embodiment, the first portion shape and the outer ring shape match.

In one embodiment, the depth of the second portion is greater than or equal to the thickness of the inner race.

In one embodiment, the height of the boss is greater than or equal to the thickness of the outer race.

In one embodiment, the outer ring is provided with a plurality of connecting holes, and the first portion is provided with a plurality of columns matching the connecting holes.

In one embodiment, the base further comprises a support plate connected to and extending outwardly from the outer periphery of the base body.

In one embodiment, the base further comprises a limiting frame, the limiting frame is connected to the top surface of the base body and extends beyond the top surfaces of the plurality of bosses along the optical axis direction, the inner periphery of the limiting frame abuts against the outer sides of the bosses, and notches are formed in the frame and correspond to the supporting plates;

the top surface of boss sets up the spacing groove, the spacing groove is located the outside of boss.

In one embodiment, the base is provided with a hollow, the hollow being located in the second portion.

The present invention also relates to a lens driving mechanism, including:

the base assembly described above;

the shell and the base are matched to form a containing space;

the circuit board is cylindrical and is positioned in the accommodating space, and the bottom of the circuit board is connected to the top surface of the base.

The anti-shake platform is electrically connected with the circuit board and is positioned inside the circuit board, an imaging chip and a plurality of groups of coils are arranged on the anti-shake platform, a plurality of grooves are formed in the bottom of the anti-shake platform, the grooves are matched with the balls and the ball grooves of the base, so that the anti-shake platform can be slidably connected to the top surface of the base, and the bottom surface of the anti-shake platform is connected with the inner ring;

the motor is movably arranged in the cylinder of the circuit board and comprises a carrier, a frame and a shell, the shell is connected with the top surface of the base, a plurality of groups of magnets are arranged on the frame and are arranged in the shell, the anti-shake platform is movably arranged in the shell and is positioned between the frame and the base, and the plurality of groups of magnets are matched with a plurality of groups of coils on the anti-shake platform to drive the anti-shake platform to move along the direction vertical to the optical axis; the frame is provided with a central hole, the carrier can be movably arranged in the central hole of the frame, and the carrier is used for mounting a lens.

According to the utility model, the anti-shake platform is provided with the plurality of groups of coils, and when the lens shakes, the plurality of groups of coils are matched with the plurality of groups of magnets on the frame to drive the anti-shake platform to move along the direction vertical to the optical axis, so that an imaging chip on the anti-shake platform is aligned with the lens along the optical axis direction, and the image quality of a shot image caused by the shaking of the lens is prevented. In addition, but anti-shake platform sliding connection is to the base, and the base can provide the support for anti-shake platform along perpendicular optical axis direction motion, guarantees the stability of anti-shake platform along perpendicular to optical axis direction motion, and the reed with anti-shake platform and base elastic connection, can prevent that anti-shake platform is at the motion in-process, the recess of anti-shake platform bottom breaks away from the ball.

Drawings

Fig. 1 is an exploded view of a lens driving mechanism according to an embodiment of the present invention.

Fig. 2 is a perspective view of the base assembly in the embodiment of fig. 1.

Fig. 3 is a perspective view of the base in the embodiment of fig. 1.

Figure 4 is a perspective view of the reed in the embodiment of figure 1.

Fig. 5 is a perspective view of the assembled base assembly, circuit board and flexible circuit board of the embodiment of fig. 1.

Reference numerals are as follows: 100. a lens driving mechanism; 1. a base; 11. a base body; 12. a boss; 13. a ball groove; 14. placing a reed; 141. a first portion; 142. a second portion; 15. a cylinder; 16. a support plate; 17. a limiting frame; 171. a notch; 18. a limiting groove; 19. a hollow part; 2. a ball bearing; 3. a reed; 31. an outer ring; 311. connecting holes; 32. a spring wire; 33. an inner ring; 4. a housing; 5. a circuit board; 6. An anti-shake platform; 61. an imaging chip; 62. a coil; 7. a motor.

Detailed Description

The preferred embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the utility model can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended to limit the scope of the present invention, but are merely intended to illustrate the spirit of the technical solution of the present invention.

In the following description, for the purposes of illustrating various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. One skilled in the relevant art will recognize, however, that the embodiments may be practiced without one or more of the specific details. In other instances, well-known devices, structures and techniques associated with this application may not be shown or described in detail to avoid unnecessarily obscuring the description of the embodiments.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.

In the following description, for the purposes of clearly illustrating the structure and operation of the present invention, directional terms are used, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be interpreted as words of convenience and should not be interpreted as limiting terms.

The utility model relates to a lens driving mechanism 100, as shown in fig. 1, fig. 2 and fig. 3, the lens driving mechanism 100 comprises a housing 4, a base 1 assembly, a circuit board 5, an anti-shake platform 6 and a motor 7, wherein the base 1 assembly comprises a base 1, a reed 3 and a plurality of balls 2, the top surface of the base 1 is provided with a plurality of ball grooves 13, the balls 2 are respectively movably arranged in the ball grooves 13, and the top surface of the base 1 and the housing 4 are matched to form a containing space for containing the motor 7, the circuit board 5 and the anti-shake platform 6. The circuit board 5 is cylindrical, the circuit board 5 is installed in the accommodating space formed by the housing 4 and the base 1, and the bottom of the circuit board 5 is connected to the top surface of the base 1. The anti-shake platform 6 is electrically connected to the circuit board 5 and movably mounted in the circuit board 5, and the anti-shake platform 6 is further provided with an imaging chip 61 and a plurality of coils 62, wherein the imaging chip 61 needs to be aligned with a lens in the motor 7 to receive light irradiated into the lens and image the light. In addition, anti-shake platform 6's bottom still is equipped with a plurality of recesses, and a plurality of recesses are used for holding a plurality of balls 2, and a plurality of balls 2 are located a plurality of recesses and a plurality of ball groove 13 respectively promptly, and anti-shake platform 6 cooperates the top surface of slidable connection to base 1 through a plurality of recesses, a plurality of balls 2 and a plurality of ball groove 13. In addition, reed 3 is still connected to the bottom surface of anti-shake platform 6, and reed 3 can prevent that anti-shake platform 6 from sliding the in-process, and the recess breaks away from ball 2. The motor 7 can be movably installed in the circuit board 5, the motor 7 comprises a carrier, a frame and a shell, the shell is connected with the top surface of the base 1, a plurality of groups of magnets are arranged on the frame and installed in the shell, the anti-shake platform 6 can be movably installed in the shell and located between the frame and the base 1, and a plurality of groups of coils 62 on the anti-shake platform 6 can drive the anti-shake platform 6 to move along the direction of the vertical optical axis. The frame is provided with a central hole, the carrier can be movably arranged in the central hole of the frame, and the carrier is used for mounting the lens.

According to the utility model, the anti-shake platform 6 is provided with the plurality of groups of coils 62, when the lens shakes, the plurality of groups of coils 62 are matched with the plurality of groups of magnets on the frame to drive the anti-shake platform 6 to move along the direction vertical to the optical axis, so that the imaging chip 61 on the anti-shake platform 6 is aligned with the lens along the optical axis direction, and the image quality of the shot image caused by the shaking of the lens is prevented. In addition, anti-shake platform 6 slidable connection is to base 1, base 1 can provide the support for anti-shake platform 6 moves along perpendicular optical axis direction, guarantee the stability of anti-shake platform 6 along the motion of perpendicular to optical axis direction, and reed 3 is with anti-shake platform 6 and base 1 elastic connection, can prevent that anti-shake platform 6 is in the motion process, the recess of 6 bottoms of anti-shake platform breaks away from ball 2, drive imaging chip 61 through the motion of anti-shake platform 6 and move along perpendicular to optical axis direction, realize accurate anti-shake more easily.

It should be noted that in the embodiment shown in fig. 1, the plurality of sets of coils 62 are disposed on another rectangular circuit board 5, and the rectangular circuit board 5 can be connected to the top surface of the anti-shake platform 6, while in other embodiments, the plurality of sets of coils 62 can be disposed directly on the anti-shake platform 6.

Fig. 2 is a perspective view of the assembly of the base 1 shown in fig. 1, fig. 3 is a perspective view of the base 1 of the embodiment shown in fig. 1, and fig. 4 is a perspective view of the spring plate 3 of the embodiment shown in fig. 1. as shown in fig. 1, fig. 2 and fig. 3, the base 1 comprises a base body 11 and a plurality of bosses 12, and the plurality of bosses 12 are arranged at intervals and connected to the top surface of the base body 11. It should be understood that the number of the bosses 12 is at least three, so that the anti-shake platform 6 can be stably supported to move in the direction perpendicular to the optical axis. A plurality of ball grooves 13 on a plurality of bosss 12 set up with a plurality of recesses respectively along the optical axis direction relatively, and a plurality of balls 2 are located a plurality of recesses and a plurality of ball grooves 13 respectively to make anti-shake platform 6 sliding connection to base 1. The reed 3 comprises an inner ring 33, an outer ring 31 and a spring wire 32, wherein the outer ring 31 is used for connecting the base body 11, the inner ring 33 is positioned in the outer ring 31 and connected to the bottom surface of the anti-shake platform 6, and the spring wire 32 has elasticity and is respectively connected with the inner ring 33 and the outer ring 31. When anti-shake platform 6 slides along perpendicular to optical axis direction, reed 3 can prevent that the recess of the 6 bottoms of anti-shake platform from breaking away from ball 2 to make anti-shake platform 6 sliding connection in base 1 steadily.

Alternatively, as shown in fig. 2 and 3, the base body 11 is rectangular, and the number of the bosses 12 is four, and the bosses are respectively located at four corners of the base body 11. The base body 11 is provided with a reed mounting position 14, the reed mounting position 14 is used for connecting the reed 3, and the reed mounting position 14 is located in an area enclosed by the plurality of bosses 12. It should be understood that the boss 12 can be disposed at other positions of the base body 11, and the spring mounting position 14 can be located at the edge of the base body 11, and is not limited to the position shown in the embodiment of fig. 2. The number of bosses 12 may also be larger as long as the ball grooves 13 on the bosses 12 can match and prevent the grooves of the shake table 6. The shape of the boss 12 is not limited as long as the top of the boss 12 has a sufficient area to open the ball groove 13.

Optionally, the spring plate 3 further includes a first connecting member, as shown in fig. 3 and 4, one end of which is connected to the inner periphery of the outer ring 31, and the other end of which is bent toward the base body 11 in the optical axis direction and is connected to the spring wire 32. And reed mounting site 14 includes a first portion 141 and a second portion 142, as shown in fig. 2 and 3, wherein first portion 141 is located on the top surface area of base body 11 surrounded by bosses 12, and first portion 141 is annular for mounting outer ring 31 of reed 3, and second portion 142 is located within first portion 141 and is formed recessed from the top surface of base 1 along the inner periphery of first portion 141, and second portion 142 is for placing wire 32 and inner ring 33. The second part 142 is formed by the top surface of the base body 11 being sunken, and the inner ring 33 and the spring wire 32 of the reed 3 are also bent towards the base 1, the inner ring 33 and the spring wire 32 can be installed in the second part 142, the inner ring 33 is fixedly connected to the second part 142, and because the distance from the second part 142 to the anti-shake platform 6 is larger than the distance from the top surface of the boss 12 to the anti-shake platform 6, the spring wire 32 can generate larger elastic force to the inner ring 33 and the anti-shake platform 6, so that the anti-shake platform 6 is close to the base 1, the anti-shake platform 6 is prevented in the process of moving, the sunken part of the bottom of the anti-shake platform 6 is separated from the ball 2, in addition, after the anti-shake platform 6 moves, the reed 3 and the circuit board 5 are matched to reset the anti-shake platform 6.

Optionally, the first portion 141 is shape matched to the outer ring 31. The first portion 141 is used to connect the outer ring 31, and in the embodiment of fig. 2, 3 and 4, the first portion 141 and the outer ring 31 are each in the shape of an octagonal ring. It should be understood that the second portion 142 and the outer ring 31 may be designed in other shapes, such as a circular ring or a plurality of strips, and the shapes of the first portion 141 and the outer ring 31 are not limited. Alternatively, the shape of the first portion 141 may not be consistent with the shape of the outer ring 31, and the size of the first portion 141 needs to be larger than or equal to the size of the outer ring 31 to facilitate connection of the outer ring 31.

Optionally, the depth of second portion 142 is greater than or equal to the thickness of inner race 33. The second portion 142 is used for mounting the inner coil 33 and the spring wire 32, and the depth of the second portion 142 affects the elasticity of the spring wire 32 on the anti-shake platform 6, so as to stabilize the movement of the anti-shake platform 6. The depth of the second portion 142 can be determined according to the magnitude of the spring force of the spring wire 32, and if the spring wire 32 has a sufficiently large spring force, the depth of the second portion 142 can be reduced appropriately, or the second portion 142 can be flush with the base body 11.

Optionally, the height of the boss 12 is greater than or equal to the thickness of the outer race 31. Boss 12 is used for supporting anti-shake platform 6 and moves along the perpendicular to optical axis direction, and the height of boss 12 is greater than the thickness of outer lane 31, can be so that reed 3's top can not go out the top surface of protrusion in boss 12, and when anti-shake platform 6 moved along the perpendicular to optical axis direction, can prevent that reed 3 from hindering or blockking the motion of anti-shake platform 6.

Alternatively, as shown in fig. 2, 3 and 4, the outer ring 31 is provided with a plurality of coupling holes 311, the first part 141 is provided with a plurality of columns 15 matching the coupling holes 311, and the outer ring 31 can be coupled to the plurality of columns 15 through the coupling holes 311.

Optionally, the base 1 further comprises a support plate 16, the support plate 16 being connected to the outer periphery of the base body 11 and extending from the outer periphery of the base body 11 towards the outside. Still be equipped with the extension on the frame, the frame is inside still to be equipped with the sheetmetal moreover, and the both ends of sheetmetal are located this extension, and the link of circuit board 5 is located the outside, and the both ends of sheetmetal can be connected in the link of circuit board 5, supply power for it through circuit board 5. The support plate 16 is used to support the connection end of the extension portion close to the circuit board 5, so as to facilitate the electrical connection of the two ends of the metal sheet to the connection end of the circuit board 5.

Optionally, the top surface of the base body 11 is further provided with a limiting frame 17, the limiting frame 17 extends beyond the top surfaces of the plurality of bosses 12 along the optical axis direction, an inner periphery of the limiting frame 17 abuts against the outer side of the bosses 12, the top surface of the bosses 12 is provided with a limiting groove 18, and the limiting groove 18 extends along the outer side of the bosses 12. The housing of the motor 7 may be mounted in the position limiting frame 17 and located outside the plurality of bosses 12, i.e. fixed by the outer sides of the bosses 12 and the position limiting frame 17. Alternatively, the housing of the motor 7 may be mounted in the limiting frame 17, and the four corners of the housing are located in the limiting grooves 18 of the four bosses 12. The frame is provided with a notch 171, the notch 171 corresponds to the support plate 16, the notch 171 is used for an extension portion of the frame, for example, so that the extension portion extends out of the base body 11 from the notch 171.

Optionally, the base 1 is provided with a hollow portion 19, the hollow portion 19 is located on the second portion 142, and the hollow portion 19 can allow other external circuits to pass through.

According to the utility model, the anti-shake platform 6 is provided with the plurality of groups of coils 62, when the lens shakes, the plurality of groups of coils 62 are matched with the plurality of groups of magnets on the frame to drive the anti-shake platform 6 to move along the direction vertical to the optical axis, so that the imaging chip 61 on the anti-shake platform 6 is aligned with the lens along the optical axis direction, and the image quality of the shot image caused by the shaking of the lens is prevented. In addition, but anti-shake platform 6 sliding connection is to base 1, and base 1 can provide the support for anti-shake platform 6 moves along perpendicular optical axis direction, guarantees the stability of anti-shake platform 6 along the motion of perpendicular to optical axis direction. The reed 3 elastically connects the anti-shake platform 6 and the base 1, so that the anti-shake platform 6 can be prevented from moving, and the groove at the bottom of the anti-shake platform 6 is separated from the ball 2.

While the preferred embodiments of the present invention have been described in detail, it should be understood that various changes and modifications of the utility model can be made by those skilled in the art after reading the above teachings of the utility model. Such equivalents are intended to fall within the scope of the claims appended hereto.

Claims (11)

1. The utility model provides a base component, base component is applied to camera lens actuating mechanism, camera lens actuating mechanism includes anti-shake platform, circuit board, motor and shell, the bottom of anti-shake platform is equipped with a plurality of recesses, the circuit board be the tube-shape and the ring encircle in the anti-shake platform is outside, the motor install in the section of thick bamboo of circuit board, the motor includes carrier, frame and casing, the frame have the centre bore and install in the casing, carrier mobile install in the frame in the centre bore, the carrier is used for the installation camera lens, a serial communication port, base component includes:

the base comprises a base body and at least three bosses, the at least three bosses are arranged at intervals and connected to the top surface of the base body, ball grooves are formed in the bosses, the ball grooves are respectively arranged opposite to the grooves along the optical axis direction, and the base body is used for being matched with the shell to form an accommodating space for accommodating the motor and the anti-shake platform;

the balls are respectively and simultaneously positioned in the ball grooves and the grooves, and the ball grooves and the grooves are respectively matched with the balls so that the anti-shake platform can be connected to the base in a sliding manner;

the reed comprises an inner ring, an outer ring and a spring wire, the inner ring is located in the outer ring and connected to the anti-shaking platform, the outer ring is connected to the base body, the spring wire has elasticity and is respectively connected with the inner ring and the outer ring, and the reed is used for limiting the groove of the anti-shaking platform to be separated from the ball.

2. The base assembly of claim 1, wherein the base body is rectangular, the number of bosses is four, and the bosses are located at four corners of the base body respectively;

and the base body is provided with reed mounting positions which are positioned in an area enclosed by the four bosses.

3. The base assembly of claim 2, wherein the spring further comprises a first connecting member, one end of the first connecting member is connected to the inner periphery of the outer ring, and the other end of the first connecting member is bent toward the base body along the optical axis direction and is connected to the spring wire;

the reed installation site includes:

a first portion that is annular and located within an area of the base body surrounded by the four bosses;

a second portion formed by being recessed from the base top surface along an inner circumference of the first portion, the second portion being for placing the spring wire and the inner race.

4. The base assembly of claim 3, wherein the first portion shape and the outer race shape match.

5. The base assembly of claim 3, wherein a depth of the second portion is greater than or equal to a thickness of the inner race.

6. The base assembly of claim 3, wherein the boss has a height greater than or equal to a thickness of the outer race.

7. The base assembly of claim 3, wherein the outer race defines a plurality of coupling apertures, and the first portion defines a plurality of posts that mate with the coupling apertures.

8. The base assembly of claim 7, wherein the base further comprises a support plate connected to and extending outwardly from the outer periphery of the base body.

9. The pedestal assembly according to claim 8, wherein the pedestal further comprises a limiting frame, the limiting frame is connected to the top surface of the pedestal body and extends beyond the top surfaces of the plurality of bosses along the optical axis direction, the inner circumference of the limiting frame abuts against the outer sides of the bosses, and notches are formed in the frame and correspond to the supporting plates;

the top surface of boss sets up the spacing groove, the spacing groove is located the outside of boss.

10. The base assembly of claim 3, wherein the base is provided with a hollow portion, the hollow portion being located at the second portion.

11. A lens driving mechanism, comprising:

the base assembly of any one of claims 1-10;

the shell and the base are matched to form a containing space;

the circuit board is cylindrical, is positioned in the accommodating space, and is connected to the top surface of the base at the bottom;

the anti-shake platform is electrically connected with the circuit board and is positioned inside the circuit board, an imaging chip and a plurality of groups of coils are arranged on the anti-shake platform, a plurality of grooves are formed in the bottom of the anti-shake platform, the grooves are matched with the balls and the ball grooves of the base, so that the anti-shake platform can be slidably connected to the top surface of the base, and the bottom surface of the anti-shake platform is connected with the inner ring;

the motor is movably arranged in the cylinder of the circuit board and comprises a carrier, a frame and a shell, the shell is connected with the top surface of the base, a plurality of groups of magnets are arranged on the frame and are arranged in the shell, the anti-shake platform is movably arranged in the shell and is positioned between the frame and the base, and the plurality of groups of magnets are matched with a plurality of groups of coils on the anti-shake platform to drive the anti-shake platform to move along the direction vertical to the optical axis; the frame is provided with a central hole, the carrier can be movably arranged in the central hole of the frame, and the carrier is used for mounting a lens.

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