CN217467313U - Lens driving mechanism and base thereof - Google Patents

Abstract

The utility model discloses a camera lens actuating mechanism and base thereof. In the utility model, the base of the lens driving mechanism is used for placing a carrier for bearing the lens, the carrier can move along the optical axis direction in an operable way, the base is provided with a light through hole, one side of the base is provided with an extension table protruding away from the optical axis direction, and one side of the extension table away from the optical axis is provided with a connecting groove; the connecting groove is used for positioning the screw rod device. Compared with the prior art, each part on the base is more convenient to install, the installation effect is better, the movement precision of the lens is better when the lens moves, and the lens shooting effect is better.

Description

Lens driving mechanism and base thereof

Technical Field

The utility model relates to an optics field, in particular to camera lens actuating mechanism and base thereof.

Background

With the development of technology, many electronic devices (such as smart phones or digital cameras) have a function of taking pictures or recording videos. The electronic devices are more and more commonly used, and the development is directed to a design of convenience and lightness and thinness to provide more choices for users.

When a user uses an electronic device equipped with a lens module, the electronic device may shake, and an image captured by the lens module may be blurred. However, the demand for image quality is increasing, and the driving function of the lens module (optical element) is becoming more important.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a camera lens actuating mechanism and base thereof for each part installation on the base is more convenient, and the installation effect is better, also lets the camera lens better at the motion precision when the motion, and the camera lens shooting effect is better.

In order to solve the technical problem, the utility model provides an embodiment provides a base of camera lens actuating mechanism, the base is used for placing the carrier that bears the camera lens, just the carrier is operatable to be followed the motion of optical axis direction, logical unthreaded hole has been seted up on the base, one side of base has the convex platform of extending of keeping away from the optical axis direction, the spread groove has been seted up to one side that the platform kept away from the optical axis, the spread groove is operativelyused for the positioning screw device.

In an embodiment, the upper wall and the lower wall of the connecting groove are provided with notches communicated with the inside of the connecting groove at one side far away from the optical axis.

In one embodiment, a lifting member is connected to a screw rod of a screw rod device in the lens driving mechanism, the connecting groove is used for the insertion of the lifting member, and the screw rod penetrates through notches of an upper wall and a lower wall of the connecting groove.

In an embodiment, the base is provided with at least two through holes for penetrating through the guide posts on the base of the lens driving mechanism, and the through holes are located on one side of the light through holes facing the extension table.

In one embodiment, the upper surface of the base has a plurality of protruding mounting pieces protruding to extend in the optical axis direction, the protruding mounting pieces circumferentially surrounding the periphery of the light passing hole; one side of the convex mounting parts facing to the optical axis is provided with a mounting surface for mounting the carrier, and at least one convex mounting part is provided with a sensor mounting position.

In one embodiment, the two convex mounting parts are supporting convex parts for supporting a magnet of the lens driving mechanism, and the two supporting convex parts are symmetrically arranged along the diameter direction of the light through hole; a male mounting member for mounting the sensor is located between the two support projections.

In one embodiment, each of the support protrusions has a protrusion on a side facing the optical axis, and the two support protrusions are symmetrical with respect to a center of the light passing hole.

In one embodiment, the upper surface of the base is further provided with a recessed area surrounding the periphery of the light through hole, and the protruding mounting part is at least partially located in the recessed area; and the recessed area is provided with a column for mounting a lower elastic sheet of the lens driving mechanism.

In one embodiment, the base has two adjacent side walls, and the extension table extends from one of the side walls;

an installation notch is formed in the upper surface of the base, and extends from the top of the other side wall to the protruding installation part with a sensor installation position; and a power-on connection point is arranged in the mounting notch.

The utility model discloses an embodiment still provides a camera lens actuating mechanism, include:

a base as claimed in any one of the above;

the screw rod device is connected with the connecting groove of the base;

the carrier is movably arranged on the base and is used for carrying the lens;

the bracket is movably positioned at the top end of the carrier;

and the lower elastic sheet is connected with the base and the carrier.

A coil fixed on the carrier; and the number of the first and second groups,

the bottom end of the magnet abuts against the base, and the top end of the magnet abuts against the support; the coil and the magnet act to drive the carrier to move along the direction of the optical axis.

The utility model discloses embodiment is for prior art, the inventor discovers that drive effect for letting the camera lens is better, drives the camera lens motion through screw rod device drive base, but screw rod device is direct to be integrative with the base, and other part installations on the base can be inconvenient, and some part installations of screw rod device inside are changed also inconveniently. And through set up the extension platform on the base, set up the spread groove on the extension bench, can let the lead screw device pass through the spread groove and install to the base on, let lead screw device and base be two independent parts, can install other parts on the base earlier in the installation, the lead screw device is put to the repacking, let the installation of lead screw device more nimble, also can not install because the existence of lead screw device appears the installation flaw in each part installation on the base, thereby can let the effect after each part installation on the base better, make camera lens actuating mechanism can be more accurate, and then can improve the service quality of camera lens, the camera lens motion precision is better when the motion, the camera lens shooting effect is better.

Drawings

Fig. 1 is a schematic view showing a structure in which a housing is separated in a lens driving mechanism according to an embodiment of the present invention;

FIG. 2 is a partial exploded view of a lens driving mechanism according to an embodiment of the present invention;

FIG. 3 is a schematic diagram of a circuit board according to an embodiment of the present invention;

FIG. 4 is a schematic diagram of a screw apparatus according to an embodiment of the present invention;

FIG. 5 is an exploded view of a lens driving mechanism without a base and a cover according to an embodiment of the present invention;

FIG. 6 is a schematic view of an embodiment of an upper panel attached to a carrier in accordance with the present invention;

FIG. 7 is a schematic view of a lower elastic sheet attached to a base in an embodiment in accordance with the present invention;

FIG. 8 is an exploded view of the light transmissive dust plug, base, and base in accordance with an embodiment of the present invention;

FIG. 9 is a schematic view of a light-transmissive dust plug installed in a base and a pedestal according to an embodiment of the present invention;

FIG. 10 is a schematic illustration of a base, carrier, and bracket mounted according to an embodiment of the present invention;

100, a lens driving mechanism; 1. a base; 10. a first light passing hole; 11. a guide post; 12. a groove; 2. a base; 20. a light through hole; 201. a first aperture body; 202. a second aperture body; 203. a third porous body; 21. an extension stage; 210. connecting grooves; 211. a notch; 22. an edge; 23. a male mounting member; 24. installing a notch; 25. a protruding support; 250. a projection; 260. a recessed region; 261. a pillar; 27. a through hole; 3. a screw device; 31. a stationary case; 32. a motor; 33. a screw rod; 34. a first gear; 35. a second gear; 36. a lifting member; 4. a carrier; 41. an upper elastic piece mounting portion; 42. a placing groove; 51. a coil; 52. a magnet; 7. a support; 71. an outer frame; 72. the bottom is convex; 73. an upper elastic piece mounting portion; 81. an upper elastic sheet; 811. a bracket mounting portion; 812. a carrier mounting section; 82. a lower elastic member; 821. a base mounting portion; 822. a carrier mounting section; 9. a frame; 90. a third light passing hole; 91. mounting grooves; 53. a position sensor; 54. an induction magnet; 6. a circuit board; 61. a first plate body; 62. a second plate body; 63. an elastic portion; 631. a first elastic vertical body; 632. an elastic horizontal body; 633. a second elastic vertical body; 64. a third plate body; 65. a fourth plate body; 101. a housing; 1010. a fourth light passing hole; 102. a light-transmitting dust cover; 103. a light-transmitting dust plug; 1031. capping; 1032. an inner annular wall; 1033. a middle annular wall; 1034. an outer annular wall; 1035. a first connection base; 1036. a first connecting top; 1037. an outer flange; 104. a housing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the following will explain in detail each embodiment of the present invention with reference to the accompanying drawings. However, it will be appreciated by those of ordinary skill in the art that in various embodiments of the invention, numerous technical details are set forth in order to provide a better understanding of the present application. However, the technical solutions claimed in the claims of the present application can be implemented without these technical details and with various changes and modifications based on the following embodiments.

Throughout the specification and claims, the word "comprise" and variations thereof, such as "comprises" and "comprising," are to be understood as an open, inclusive meaning, i.e., as being interpreted to mean "including, but not limited to," unless the context requires otherwise.

Various 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 invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended as limitations on the scope of the invention, but are merely illustrative of the true spirit of the technical solutions of the present invention.

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.

As used in this specification and the appended claims, the singular forms "a", "an", and "the" include plural referents unless the context clearly dictates otherwise. It should be noted that the term "or" is generally employed in its sense including "and/or" unless the context clearly dictates otherwise.

In the following description, for the sake of clarity, the structure and operation of the present invention will be described with the aid of directional terms, but the terms "front", "rear", "left", "right", "outer", "inner", "outer", "inward", "upper", "lower", etc. should be understood as words of convenience and not as words of limitation.

Embodiments of the present invention are described below with reference to the drawings. As shown in fig. 1, 2 and 3, the chassis is used in a lens driving mechanism, and as shown in fig. 1, 2 and 5, the lens driving mechanism 100 includes: the device comprises a base 1, a base 2, a screw rod device 3, a carrier 4, a coil 51, a magnet 52, a bracket 7, an upper elastic sheet 81, a lower elastic piece 82 and a frame 9. The base 1 is provided with a first light through hole 10, and the base 1 is provided with a plurality of guide posts 11 extending along the optical axis direction. The base 2 is movably arranged on the base 1, the base 2 is provided with a light through hole 20 communicated with the first light through hole 10, and the guide post 11 penetrates through the base 2 and is connected with the frame 9. The screw rod device 3 is arranged on the base 1 and connected with the base 2, and the screw rod device 3 is used for driving the base 2 to move along the optical axis direction. The carrier 4 is movably disposed on the base 2 along the optical axis direction and is used for carrying a lens. The coil 51 is fixed to the carrier 4, the magnet 52 abuts against the base 2, and the coil 51 and the magnet 52 act to drive the carrier 4 to move in the optical axis direction. The support 7 is movably located at the top end of the carrier 4. As shown in fig. 5, 6 and 7, the upper elastic piece 81 connects the bracket 7 and the carrier 4, and the lower elastic piece 82 connects the carrier 4 and the base 2. The frame 9 is sleeved outside the carrier 4 and fixed with the base 1, and the guide posts 11 are inserted into the frame 9. The top end of the frame 9 is provided with a third light passing hole 90. The base 2 and the carrier 4 are operable to move in the optical axis direction within the frame 9. The lens driving mechanism 100 further includes an outer cover 104 covering the frame 9, and the outer cover 104 is provided with a light hole.

Specifically, as shown in fig. 1, fig. 2 and fig. 5, the screw device 3 is connected to the base 2, and drives the base 2 to move along the guide post 11, that is, the guide post 11 guides the base 2, so that the base 2 moves along the optical axis direction, and the base 2 drives the carrier 4 to move together. The built-in circuit in the base 2 is electrified towards the lower elastic sheet, the lower elastic sheet simultaneously transmits current to the carrier 4, the current is transmitted to the coil 51 through the built-in circuit on the carrier 4, the energization of the coil 51 is realized, the coil 51 is matched with the magnet 52 after being electrified, the coil 51 is arranged on the carrier 4 and moves along the direction of an optical axis together with the carrier 4, and the longitudinal movement of the lens carried by the carrier 4 between the base 2 and the support 7 is realized. And the carrier 4 is pulled to reset after longitudinal movement through the elasticity of the upper elastic sheet and the lower elastic sheet. The bracket mounting portion 811 of the upper spring plate 81 is connected to the mounting position 73 of the upper spring plate on the bracket, and the carrier mounting portion 812 of the upper spring plate 81 is connected to the upper spring plate mounting portion 41 on the carrier. The base mounting portion 821 of the lower spring plate 82 is connected to the base 2, and the carrier mounting portion 822 of the lower spring plate 82 is connected to the carrier 4.

Through the above-mentioned technique discovery, through the setting of screw rod device 3, but the motion of quick adjustment base 2 along the optical axis direction, and guide post 11 and screw rod device 3's cooperation can let base 2 motion accuracy better, and reduced magnetic material, and then realize installing on base 2 at carrier 4, the motion of base 2 and then let carrier 4 drive the camera lens internal motion on a large scale. The carrier 4 is connected with the support 7 through the upper elastic sheet 81 and connected with the base 2 through the lower elastic sheet, so that the carrier 4 can carry the lens to move along the optical axis direction relative to the base 2, and the movement within a small range is realized, thereby realizing the quick and high-precision focusing operation and micro-focusing operation on the lens at a large distance.

Further, as shown in fig. 1, fig. 2 and fig. 5, the base 2 has a protruding extension table 21, and a side of the extension table 21 facing the screw device 3 is opened with a connection groove 210 for positioning the screw device. The lifting piece 36 of the screw device is inserted into the connecting groove 210. Therefore, the lifting piece and the connecting groove 210 are two parts, when the screw rod device 3 is installed, the lifting piece 36 is inserted into the connecting groove 210 and fixed with the connecting groove 210 through gluing or other forms, and therefore the screw rod device 3 is convenient to install on the base 2.

Further, as shown in fig. 1, 2 and 5, a slot 211 for inserting the screw 33 is opened on each of the upper wall and the lower wall of the connecting groove 210 facing the screw 33, and the upper wall and the lower wall of the connecting groove 210 are at least partially opposite to the lifting piece 36. Through the setting of notch 211, let and form the position of dodging of lead screw 33 on the extension platform 21, can imbed lead screw 33 to the extension platform 21 in, lifting unit 36 has more connected regions with the extension platform 21, connects more stably, also lets the space on the base 2 more compact, can form more reasonable overall arrangement among each part in the lens actuating mechanism 100.

Specifically, as shown in fig. 1, 2 and 5, the extension stage 21 is extended and projected in a direction perpendicular to the optical axis, and the bottom surface of the extension stage 21 is spaced apart from the upper surface of the base 1, and the bottom of the fixing case 31 is embedded between the bottom surface of the extension stage 21 and the upper surface of the base 1. The screw rod device 3 is more compactly matched with the base 2 and the base 1, and more reasonable layout can be formed among all the components in the lens driving mechanism 100.

Specifically, as shown in fig. 1, 2 and 5, a groove 12 for placing the screw device 3 is formed on the base 1, the extension table 21 extends above the groove 12, the bottom surface of the extension table 21 is higher than the bottom of the groove 12, and the bottom of the fixing shell 31 can be inserted into the groove 12.

It will be appreciated that in other embodiments, the base 1 may not have the groove 12, and the bottom surface of the extension platform 21 is higher than the bottom surface of the base 2, so that there is a space between the extension platform 21 and the top surface of the base 1 for the bottom of the fixing shell 31 to be inserted.

Further, as shown in fig. 2, 5 and 7, at least two through holes 27 for penetrating through the guiding posts on the base of the lens driving mechanism are formed on the base 2, and the through holes are located on one side of the light through hole 20 facing the extending table 21. Specifically, as shown in fig. 1, 2 and 5, one side of the base 2 having the extension platform 21 is connected to two adjacent sides to form two edges 22 of the base 2, and the two guide posts 11 are respectively located between the two edges 22 and the carrier 4. That is, the guide post 11 is inserted into the through hole 27 penetrating through the end corners of the two bases 2, which are the end corners near the screw rod device 3, so that the guide post 11 is close to the screw rod device 3, and the closer the guide post 11 is to the screw rod 33, the smaller the deviation of the movement of the base 2 along the guide post 11 will be. The number of the guide posts 11 is not limited to 2, and may be more, and may be partially guided to the end angle side near the screw rod device 3, or may be entirely guided to the end angle side near the screw rod device 3.

Further, the upper surface of the base 2 has a plurality of protruding mounting pieces protruding to extend in the optical axis direction, and the plurality of protruding mounting pieces circumferentially surround the periphery of the light passing hole 20. Wherein the side of the plurality of male mounts facing the optical axis has a mounting face for mounting the carrier 4. The sensor mounting location may be a notch into which the position sensor is embedded. It will be appreciated that the sensor mounting location may also mount other sensors in addition to the position sensor.

Further, as shown in fig. 1, 2, 5, and 7, the lens driving mechanism 100 further includes: a position sensor 53 provided on the male mount 23, and a circuit board 6 mounted outside the frame 9. The carrier 4 is provided with an induction magnet 54, and the position sensor 53 is opposed to the induction magnet 54 for inducing the induction magnet 54. The carrier 4 is provided with a placing groove 42 for placing the induction magnet 54, the circuit board 6 is electrically connected with the motor 32 and the power-on point on the base 2, and the motor 32 is electrically connected with the circuit board 6. The circuit board 6 is electrically connected with the position sensor 53.

Specifically, as shown in fig. 1, 2 and 3, the circuit board 6 includes a first board 61 electrically connected to the motor 32, a second board 62 bent and connected to the first board 61, an elastic portion 63 connected to a top of the second board 62, a third board 64 bent and connected to a free end of the elastic portion 63, and a fourth board 65 bent and connected to the third board 64. At least part of the first board 61 and at least part of the second board 62 are vertically embedded in two adjacent side walls of the frame 9, the third board 64 extends into the frame 9 and is electrically connected with a power-on point on the base 2, the fourth board 65 is used for connecting the position sensor 53, and the elastic part 63 and the third board 64 separate the second board 62 and the fourth board 65. The third plate 64 is electrically connected to the power-on point on the base 2, and supplies power to the position sensor 53, so that the position sensor 53 drives the induction magnet 54 to move together when the base 2 moves along the optical axis direction, and the position sensor 53 can detect the operating state of the base 2 through the induction magnet 54. And after the base 2 is driven by the screw rod device 3 to move, the base 2 can drive the third plate body 64 and the fourth plate body 65 to move together, and the elastic part 63 can play a resetting role.

As shown in fig. 7, an installation notch 24 is opened on the upper surface of the base 2, the installation notch 24 extends from the edge of the base 2 to the protruding installation part 23 with a sensor installation position, and an electrical connection point is arranged in the installation notch 24. The lens driving mechanism 100 further includes: and the shell 101 is sleeved on the periphery of the convex mounting part 23 and the periphery of the carrier 4, and the top of the shell 101 is provided with a fourth light-passing hole 1010 communicated with the third light-passing hole. The third plate 64 is installed in the installation notch 24, the installation notch 24 extends from the base 2 to the inside of the casing 101 toward the edge of the second plate 62, and the fourth plate 65 extends vertically upward and is inserted into the casing 101. Therefore, the circuit board 6 can be reasonably arranged, the circuit board 6 is the flexible circuit board 6, the function of the circuit board 6 is not limited, the circuit board 6 is better configured with the base 2, the shell 101 and the frame 9 in structure, and redundant space is not occupied.

Preferably, as shown in fig. 1, 2 and 3, the elastic part 63 has a first elastic vertical body 631 connected to the top of the second plate 62, an elastic horizontal body 632 connected to the first elastic vertical body 631, and a second elastic vertical body 633 connecting the third plate 64 and the elastic horizontal body 632. Thereby can form the resilience force of horizontal direction and vertical direction, let the better reseing of circuit board 6, and reduce circuit board 6 and be driven by base 2 and connect the influence of different circuit elements to circuit board 6 electricity, let the use of dynamic circuit board 6 safe and reliable more.

Further, as shown in fig. 7, the two convex mounting members are support convex members 25 for supporting a magnet 52 of the lens driving mechanism, and the two support convex members 25 are symmetrically arranged in the diameter direction of the light passing hole, and the convex mounting member 23 for mounting the position sensor 53 is located between the two support convex members 25. In some embodiments, the number of the support protrusions 25 is not limited to 2.

In addition, as shown in fig. 1, 2, 3, 5, and 7, the protruding support 25 and the magnets 52 are provided in plural numbers and are arranged in one-to-one correspondence. The magnets 52 extend upward to abut against the holder 7. Therefore, the magnet 52 is installed in a better positioning mode through the matching of the support 7 and the protruding support piece 25, the magnet 52 is arranged vertically, the area of a magnetic induction line is larger, and a proper magnetic field is formed to enable the carrier 4 to move.

Further, as shown in fig. 1, 2, 5, and 10, the support 7 has an outer frame 71 surrounding the top of the carrier 4, and a plurality of bottom protrusions 72 extending downward from the bottom of the outer frame 71. The magnet 52 is sandwiched between two adjacent bottom protrusions 72, and at least one bottom protrusion 72 is connected to the upper elastic sheet 81. Therefore, the magnet 52 can be positioned and fixed together with the base 2 by the bottom bulge 72 on the support 7, and the elastic sheet 81 can be connected by the bulge on the base 2, so that the mounting precision of the magnet 52 and the elastic sheet 81 can be further improved by reasonably utilizing the structure of the layout support 7.

Further, as shown in fig. 1, 2, 5, and 10, the bracket 7 is embedded in the third light-passing hole 90, the outer frame 71 is annular, and a light-transmitting dustproof cover 102 covering the third light-passing hole 90 is embedded in the outer frame 71.

Further, as shown in fig. 5 and 7, each of the support protrusions 25 has a convex portion 250 on a side toward the optical axis, and the two support protrusions 25 are symmetrical with respect to the center of the light passing hole 20. The carrier 4 is provided with a long groove into which the protrusion 250 is inserted, and the protrusion guides the carrier 4 when the carrier 4 moves in the optical axis direction.

Further, as shown in fig. 5 and 7, the upper surface of the base 2 is further provided with a recessed area 260 surrounding the periphery of the light passing hole 20, and the protruding mounting member 23 and the supporting protrusion 25 are at least partially located in the recessed area 260.

Further, as shown in fig. 5 and 7, the recessed area 260 has therein a pillar 261 for mounting the lower spring 82 of the lens driving mechanism.

Further, as shown in fig. 8 and 9, the lens driving mechanism 100 further includes: the first light-passing hole 10 of plug and the light-transmitting dustproof plug 103 that passes through the light hole 20, and the light-transmitting dustproof plug 103 all seals up with the inner wall of first light-passing hole 10 and second light-passing hole 20 and offsets. Prevent foreign matters from falling on the lens.

Specifically, as shown in fig. 8 and 9, the second light passing hole 20 includes a first hole 201 connected from top to bottom and a second hole 202 connected to the first hole 201, and the diameter of the first hole 201 is smaller than that of the second hole 202.

The second light passing hole 20 further has a third hole body 203 connected to the second hole body 202, and the second hole body 202 has a smaller diameter than the third hole body 203.

As shown in fig. 8 and 9, the light-transmissive dust plug 103 has a partially light-transmissive top closure 1031 at least opposite to the first aperture body 201, an inner ring wall 1032 surrounding the light-transmissive top, an intermediate ring wall 1033 surrounding the outer periphery of the inner ring wall 1032, an outer ring wall 1034 surrounding the outer periphery of the intermediate ring wall 1033, a first connecting bottom 1035 connecting the bottom of the outer ring wall 1034 with the bottom of the intermediate ring wall 1033, and a first connecting top 1036 connecting the top of the intermediate ring wall 1033 with the top of the outer ring wall 1034. The inner ring wall 1032 abuts against the inner wall of the second aperture 202, the outer ring wall 1034 abuts against the inner wall of the third aperture 203 and the inner wall of the first light transmitting aperture 10, the first connecting top 1036 abuts against the base 2 at the top of the third aperture 203, and the partial sealing top 1031 abuts against the base 2 at the top of the second aperture 202. Prevent that the dust from entering into the camera lens between base 1 and base 2, dustproof effect is better. The light-transmitting dust plug 103 further has an outer flange 1037 connected to the bottom of the outer annular wall 1034 and extending horizontally, and the outer flange 1037 abuts against the outer periphery of the first light-transmitting hole 10. And the light-transmitting dust plug 103 may be a rubber plug.

A second embodiment of the present invention relates to a lens driving mechanism. As shown in fig. 1, 2, 3, and 5, the lens driving mechanism includes: the base 2, the carrier 4, the coil 51, the magnet 52, the bracket 7, the lower elastic member 82, the upper elastic sheet 81 and the screw device 3. The carrier 4 is movably disposed on the base 2 along the optical axis direction and is used for carrying a lens. As shown in fig. 5, 6 and 7, the upper elastic piece 81 connects the support 7 and the carrier 4, and the lower elastic piece 82 connects the carrier 4 and the base 2. The coil 51 is fixed on the carrier 4, the bottom end of the magnet 52 is abutted against the base 2, the top end of the magnet 52 is abutted against the bracket 7, and the coil 51 and the magnet 52 act to drive the carrier 4 to move along the optical axis direction.

Implementation details of the present embodiment are specifically described below, and the following description is provided only for the sake of understanding and is not necessary for implementing the present embodiment.

While the preferred embodiments of the present invention have been described in detail above, it should be understood that aspects of the embodiments can be modified, if necessary, to employ aspects, features and concepts of the various patents, applications and publications to provide yet further embodiments.

These and other changes can be made to the embodiments in light of the above detailed description. In general, in the claims, the terms used should not be construed to be limited to the specific embodiments disclosed in the specification and the claims, but should be construed to include all possible embodiments along with the full scope of equivalents to which such claims are entitled.

It will be understood by those skilled in the art that the foregoing embodiments are specific examples of the invention, and that various changes in form and details may be made therein without departing from the spirit and scope of the invention in its practical application.

Claims (10)

1. A base of a lens driving mechanism is used for placing a carrier for bearing a lens, and the carrier can move along the direction of an optical axis in an operable manner; the connecting groove is used for positioning the screw rod device.

2. The chassis of a lens driving mechanism according to claim 1, wherein a notch communicating with the inside of the connecting groove is formed on one side of the upper wall and the lower wall of the connecting groove away from the optical axis.

3. The base for a lens driving mechanism according to claim 2, wherein a lifting member is connected to a screw rod of a screw rod device in the lens driving mechanism, the connecting groove is used for the insertion of the lifting member, and the screw rod penetrates through notches of upper and lower walls of the connecting groove.

4. A base of a lens driving mechanism according to claim 3, wherein the base has at least two through holes for passing through the guiding posts on the base of the lens driving mechanism, and the through holes are located on one side of the light passing holes facing the extending stage.

5. A base of a lens driving mechanism according to claim 1, wherein an upper surface of the base has a plurality of protruding mounting pieces protruding in the optical axis direction, the protruding mounting pieces circumferentially surrounding an outer periphery of the light passing hole; one side of the convex mounting parts facing to the optical axis is provided with a mounting surface for mounting the carrier, and at least one convex mounting part is provided with a sensor mounting position.

6. The mount for lens driving mechanism according to claim 5, wherein the two projecting mounting members are support projections for supporting a magnet of the lens driving mechanism, and the two support projections are symmetrically arranged in a diameter direction of the light passing hole; a male mounting member for mounting the sensor is located between the two support projections.

7. The mount for lens driving mechanism according to claim 6, wherein each of the support protrusions has a convex portion on a side facing the optical axis, and two of the support protrusions are symmetrical with respect to a center of the light passing hole.

8. The base of the lens driving mechanism as claimed in claim 5, wherein the upper surface of the base is further formed with a recessed area surrounding the periphery of the light passing hole, and the protruding mounting member is at least partially located in the recessed area; and the recessed area is provided with a table post for mounting a lower elastic sheet of the lens driving mechanism.

9. A base for a lens driving mechanism according to claim 5, wherein said base has two adjacent side walls, and said extension stage extends from one of said side walls;

an installation notch is formed in the upper surface of the base, and extends from the top of the other side wall to the protruding installation part with a sensor installation position; and a power-on connection point is arranged in the mounting notch.

10. A lens driving mechanism, comprising:

a base as claimed in any one of claims 1 to 9;

the screw rod device is connected with the connecting groove of the base;

the carrier is movably arranged on the base and is used for carrying the lens;

the bracket is movably positioned at the top end of the carrier;

a lower elastic sheet connecting the base and the carrier;

a coil fixed on the carrier; and the number of the first and second groups,

the bottom end of the magnet abuts against the base, and the top end of the magnet abuts against the support; the coil and the magnet act to drive the carrier to move along the direction of the optical axis.

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