CN212569255U - Frame of lens driving mechanism - Google Patents

Abstract

The utility model discloses a camera lens actuating mechanism's frame, this camera lens actuating mechanism include this frame, carrier, go up reed, lower reed, suspension wire, magnet group, circuit board and base. The frame is provided with a central opening, four inner walls for installing the magnet group are formed around the central opening, at least one limiting groove is formed on each of the at least two inner walls, and the limiting grooves are matched with the protrusions on the carrier to limit the movement of the carrier and the frame in the direction perpendicular to the optical axis. The utility model discloses a frame can realize spacing each other with the better of carrier.

Description

Frame of lens driving mechanism

Technical Field

The utility model relates to an optical imaging equipment technical field, concretely relates to camera lens actuating mechanism's frame.

Background

Along with smart mobile phone's a large amount of popularizations, cell-phone camera's range of application is bigger and bigger, however, cell-phone camera's sensor is mostly laid in the module outside the motor at present, side FPC adopts flexible circuit board, produce perk scheduling problem, the sensor detects unstably, side FPC adopts flexible circuit board simultaneously, the installation unevenness can influence actual motion stroke, the vertical direction motion part of middle carrier, in the coil on the carrier is retransmitted to last reed through the power transmission of suspension wire with bottom FPC, when the motor receives the impact or after the operation of permanent time, suspension wire reliability step-down, the easy problem of appearing fracture etc. leads to whole motor to become invalid. In addition, all be equipped with the circuit board in the base usually, the circuit board includes a lot of layers usually, and external circuit passes through circuit board and suspension wire etc. with the coil of focusing and realizes being connected, and the structure is complicated, and the circuit is not succinct enough, and the reliability receives certain influence.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a lens actuating mechanism's frame to solve the problem that exists among the above-mentioned prior art.

In order to solve the above problem, according to the utility model discloses an aspect provides a lens actuating mechanism's frame, lens actuating mechanism includes frame, carrier, last reed, lower reed, suspension wire, magnet group, circuit board and base, the frame has central opening, encircles central opening forms four and is used for the installation the inner wall of magnet group, at least two respectively form at least one spacing recess on the inner wall, spacing recess with protruding cooperation on the carrier, in order to restrict the carrier with the motion of frame in the perpendicular to optical axis direction.

In one embodiment, four corners of an upper surface of the frame facing the upper spring are provided with protrusions protruding upward to limit the frame in the optical axis direction.

In one embodiment, the inner side of the bulge part close to the central opening of the frame is provided with a frame upper reed mounting part, and the outer ring of the upper reed is connected with the frame upper reed mounting part.

In one embodiment, the outer side of the projection forms a countersink, and the upper spring mounting portion extends around the inner side of the projection and forms a sidewall of the countersink with the projection.

In one embodiment, the stopper groove has a first opening facing the upper spring and a second opening facing the carrier, the first opening being provided on the upper surface of the frame, and the second opening being provided on the inner wall.

In one embodiment, two limiting grooves are respectively arranged on one pair of opposite inner walls of the frame.

In one embodiment, two retaining grooves on each of the inner walls are disposed at both ends of the inner wall.

In one embodiment, the retaining grooves on the pair of opposing inner walls are arranged in facing relation.

In one embodiment, the four corners of the frame are further provided with frame suspension wire mounting grooves extending in the height direction of the frame to receive suspension wires.

In one embodiment, each of the four inner walls is provided with a magnet group mounting groove, and each magnet group mounting groove is provided with an inner opening facing the carrier and a lower opening facing the base.

Compared with the prior art, the utility model discloses cancelled side FPC, the structure is simplified, is connected external circuit and the coil of focusing through the embedded sheetmetal of base simultaneously to and through the embedded sheetmetal of base with external circuit and anti-shake coil lug connection, simplified technology and circuit, make product reliability higher. Furthermore, the utility model discloses a frame can realize better mutual spacing with the carrier for carrier and frame can not take place relative motion on the plane of perpendicular to optical axis.

Drawings

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

fig. 2 is a perspective view of a frame according to an embodiment of the present invention;

fig. 3A is a perspective view of a carrier according to an embodiment of the present invention;

FIG. 3B is a top view of the carrier of FIG. 3A;

fig. 3C is a bottom view of the carrier of fig. 3A;

fig. 4A is a perspective view of a base according to an embodiment of the present invention;

FIG. 4B is an enlarged partial view of FIG. 4A showing the sensor mounting portion in detail;

fig. 5A is a perspective view of a metal sheet embedded in a base according to an embodiment of the present invention;

fig. 5B is another perspective view of a metal sheet embedded in the base according to an embodiment of the present invention;

fig. 6 is a perspective view of an upper spring plate according to an embodiment of the present invention;

fig. 7 is a perspective view of a lower spring plate according to an embodiment of the present invention;

fig. 8 is a top view of a lens driving mechanism according to an embodiment of the present invention, with the housing removed;

fig. 9 is a bottom view of the lens driving mechanism according to an embodiment of the present invention, in which the housing is removed.

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 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 solution of the 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 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.

The utility model relates to a camera lens actuating mechanism generally, include casing, carrier, frame, magnet group, base, go up the reed, lower reed, suspension wire, circuit board and the embedded sheetmetal of base. The carrier is used for mounting a lens and is wound with a focusing coil, the frame is provided with a central opening, the magnet group is mounted on the frame and is arranged around the central opening, the carrier is arranged in the central opening of the frame, the upper surface of the carrier and the upper surface of the frame are movably connected through the upper reed, the lower surface of the carrier and the lower surface of the frame are movably connected through the lower reed, the frame and the carrier are suspended on the base through the suspension wires, the anti-shake coil is arranged in the circuit board, the focusing coil on the carrier and the magnet group are matched and used for driving the carrier to move along the optical axis (defined as the Z axis) direction so as to realize the focusing function, the anti-shake coil in the circuit board and the magnet group are matched and used for driving the frame and the carrier to perform two-dimensional displacement motion along the X axis and the Y axis direction so as. The utility model discloses in, be equipped with the sensor on the base to detect carrier X axle and the ascending skew displacement of Y axle side in perpendicular to optical axis side, and transmit this skew displacement for the controller, thereby control the electric current size and the direction in the anti-shake coil, make the camera lens along the direction motion opposite with the skew displacement, realize optics anti-shake. And the sensor is not arranged in the direction parallel to the optical axis (namely, the Z axis), and the automatic focusing is controlled by adjusting the current in the coil. For example, when the stroke in the Z-axis direction of each product is detected, assuming that the stroke is 100, a plurality of different positions are set in the Z-axis stroke, the magnitude of the current at the corresponding position is recorded and set in the chip in advance, and the driving position can be controlled by only raising the current to the corresponding intensity in actual driving, so that the focusing function is realized. The design reduces the number of sensors, so that the part structure is simple, the manufacturing and processing cost is reduced, and meanwhile, the reliability of the product is also improved.

In addition, in one embodiment, the sensor is installed on the base embedded metal sheet and is directly communicated with the outside through the base embedded metal sheet in a signal and circuit mode, and therefore signal transmission efficiency and reliability are improved. In addition, through the arc design of the embedded sheetmetal installation department of base, the intensity of the embedded sheetmetal installation department of base has further been improved, compressive resistance when the embedded sheetmetal of increase base is impressed the base.

A lens driving mechanism according to an embodiment of the present invention will be described in detail with reference to fig. 1 to 7.

Fig. 1 is an exploded perspective view of a lens driving mechanism according to an embodiment of the present invention. As shown in fig. 1, a lens driving mechanism 100 according to an embodiment of the present invention generally includes a housing 10, an upper spring 20, a frame 30, a magnet group 40, a carrier 50, a lower spring 21, a base 60, a circuit board 61, a base embedded metal sheet 62, and a suspension wire 90. The base embedded metal sheet 62 is arranged in the base 60, the circuit board is arranged on the surface of the base 60 facing the shell, the upper reed 20 movably connects the upper surface of the carrier 50 with the lower surface of the frame 30, the lower reed 21 movably connects the lower surface of the carrier 50 with the lower surface of the frame 30, and the magnet group 40 is fixedly arranged on the inner wall of the frame 30. The suspension wires 90 suspend the frame 30 and the carrier 50 from the base 60, and the carrier 30 and its upper spring 20, the magnet assembly 40, the frame 30, and the lower spring 21 are accommodated in the space defined by the housing 10 and the base 60. The carrier 50 is provided with a focusing coil, the circuit board 61 is internally provided with an anti-shake coil, and the focusing coil and the anti-shake coil are correspondingly matched with the magnet group 40 so as to drive the carrier 50 to move along a Z axis, an X axis or a Y axis which are perpendicular to each other when the circuit board is electrified, so that the focusing function and the optical anti-shake function of the lens driving mechanism are realized.

Each component of the lens driving mechanism of the present invention will be described with reference to fig. 2 to 8.

Fig. 2 is a perspective view of a frame 30 according to an embodiment of the present invention, as shown in fig. 2, the frame 30 has a central opening 31, and a magnet group 40 is disposed on four inner walls surrounding the central opening 31, specifically, the magnet group 40 includes four magnets, and one magnet is respectively and fixedly disposed on each of the four inner walls of the frame 30. Four corners of a surface of the frame 30 facing the housing (simply referred to as an upper surface) are provided with projecting portions 34 projecting upward to serve as a limit in the Z-axis direction, and an upper frame reed fitting portion 32 is provided inside the projecting portions 34, i.e., on a side facing the central opening 31. the upper frame reed fitting portion 32 is fitted with the frame fitting portion of the upper reed 20, thereby fixedly connecting the outer race of the upper reed 20 with the upper surface of the frame 30. The outer side of the projection 34 (i.e., the side away from the central opening 34) forms a depression 36, and the upper leaf mounting portion 32 extends around the inner side of the projection 34 and forms a side wall of the depression 36 with the projection 24. A limiting groove 35 is provided near one side of the reed mounting part 32 on the frame, and the limiting groove 35 is used for matching with the upper carrier projection on the carrier 50, so as to limit the movement of the carrier 50 and the frame 20 in the direction perpendicular to the optical axis. The limiting recess 35 has a first opening towards the upper spring, which is arranged on the upper surface of the frame, and a second opening towards the carrier, which is arranged on the inner wall of the central opening. The four corners of the frame 30 are further provided with frame suspension wire mounting grooves 33 extending in the height direction of the frame to receive the suspension wires 90, and the lower ends of the suspension wires 90 are connected to the base insert metal sheet 62 of the base 60, then pass through the frame suspension wire mounting grooves 33 and connected to the suspension wire connection portion of the upper spring 20 at the upper ends, and electrically communicate with the focusing coil on the carrier 50 through the upper spring 20. Thus, the suspension wires 90 suspend the frame 30 and the carrier 50 from the base 90, and the other wire also has the function of conducting electricity, serving as a conductor for an external circuit and a focusing coil.

Fig. 3A is a perspective view of a carrier 50 according to an embodiment of the present invention, fig. 3B is a top view of the carrier 30 of fig. 3A, fig. 3C is a bottom view of the carrier 30 of fig. 3A, as shown in fig. 3A-3C, a lens mounting hole 54 is provided inside the carrier 50 for mounting a lens, an outer diameter of the lens mounting hole 54 matches with an inner diameter of the central opening 31 of the frame 30, so that the carrier 50 can be movably disposed in the central opening 31 of the frame 30, and the magnet group 40 surrounds four sides of the carrier 50. A pair of opposite first side portions and a pair of opposite second side portions of the carrier are formed around the lens mounting hole 54, a coil mounting portion 52 is provided on an outer surface of the pair of opposite first side portions to mount a coil, the coil mounting portion 52 is formed to protrude from a surface of the carrier 50 by a certain distance and is wound with a focusing coil 53, the focusing coil 53 is correspondingly matched with two magnets of the magnet group 40, when the focusing coil 40 is energized, the carrier 50 can move in an optical axis direction, i.e., a Z-axis direction, due to an electromagnetic induction effect, thereby implementing an optical zooming function. A carrier upper reed mounting portion 55 is provided around the carrier central opening 54, an upper reed inner ring mounting portion 22 is provided on the inner ring of the upper reed 20, and the inner ring of the upper reed 20 is fixed to the carrier 50 by the upper reed inner ring mounting portion 22 engaging with the carrier upper reed mounting portion 55. The upper surface of the carrier 50 is provided at the outer periphery thereof with carrier upper protrusions 51 protruding outward, and in particular, the carrier upper protrusions 51 are provided at the upper surfaces of a pair of opposite second side portions to be engaged with the limiting grooves of the frame to limit the movement of the carrier relative to the frame in the direction perpendicular to the optical axis. The lower surface of the carrier 50 is provided with a carrier lower protrusion 56 protruding downward to be engaged with the seating 60, thereby preventing the collision of the carrier 50 with the seating 60. Optionally, the carrier lower protrusions 56 and the carrier upper protrusions 55 are provided on the upper and lower surfaces of the same side of the carrier 50, preferably, two carrier lower protrusions 56 are provided on the lower surface of the same side, and are preferably arranged between the two carrier upper protrusions 55 on the upper surface.

Fig. 4A is a perspective view of a base 60 according to an embodiment of the present invention, and fig. 4B is a partially enlarged view of fig. 4A, showing a sensor mounting portion. As shown in fig. 4A-4B, the base 60 is integrally formed as a rectangular plate body having a base central aperture 601 formed in the middle thereof for mating with the carrier interior central aperture 54, and two opposing base first side portions 60A and two opposing base second side portions 60B formed around the base central aperture 601. The two opposite first sides 60A of the base are provided with a plurality of first base embedded metal sheet positioning pressure holes 604, the opposite second sides 60B of the base are provided with a plurality of second base embedded metal sheet positioning pressure holes 605, the first base embedded metal sheet positioning pressure holes 604 have a larger aperture, and the second base embedded metal sheet positioning pressure holes 605 have a smaller aperture. The size cooperation through the embedded sheetmetal location of first base presses hole 604 and the embedded sheetmetal location of second base presses hole 605, can better realize the processing location to the embedded sheetmetal of base 62, conveniently carries out accurate positioning processing to the embedded sheetmetal of base, realizes the processing formation of the specific characteristic on the embedded sheetmetal of base 62.

With continued reference to fig. 4A, the base first side portion 60A is further provided with a plurality of first tape slots 606, preferably, the plurality of first tape slots 606 are disposed at both ends and in a middle portion of the first side portion 60A. A plurality of second strap cutting slots 607 are also provided around the base central aperture 601. the plurality of second strap cutting slots 607 are preferably evenly disposed around the base central aperture 601.

The material strap slot is described in detail below with reference to fig. 4B by taking the first material strap slot 606 as an example, wherein the specific structure of the second material strap slot 607 is similar to that of the first material strap slot 606 and is not repeated herein. As shown in fig. 4B, the first material strap cutting slot 606 is integrally formed as a "U" shaped slot and includes a bottom 6061 and a side wall 6062, and the side wall 6062 is formed with an arc 6063. Through the arrangement of the first material strap cutting groove 606 and the second material strap cutting groove 607 and the unique structural design thereof, laser splashing can be prevented in the process of laser processing of the base embedded metal sheet 62. A plurality of base embedded metal sheet connection avoiding grooves 608 are further formed around the base center hole 601 to match with the base embedded metal sheet connection, and preferably, the base embedded metal sheet connection avoiding grooves 608 are formed between every two second material strap cutting grooves 607.

Referring to fig. 4A, the base 60 is further provided with a plurality of circuit board fixing posts 602 to fix the circuit board 61 on the base 60. The four corners of the base 60 are further provided with suspension wire fixing holes 603, and the lower ends of the suspension wires 90 are fixed in the suspension wire fixing holes 603, preferably, the suspension wire fixing holes 603 are disposed adjacent to and communicated with the first tape cutting grooves 606 at the two ends of the first side portion 60A, so that the damping glue at the ends of the suspension wires 60 can be accommodated in the tape cutting grooves.

Fig. 5A is a perspective view of the base insert metal sheet 62, fig. 5B is another perspective view of the base insert metal sheet 62, and the base insert metal sheet 62 according to an embodiment of the present invention will be described with reference to fig. 5A to 5B. As shown in fig. 5A, the base insert metal sheet 62 is integrally disposed inside the base 60 and electrically connected to the circuit board 61. Four corners of the base embedded metal sheet 62 are provided with suspension wire connecting parts 621, the suspension wire connecting parts 621 are correspondingly matched with the suspension wire connecting holes 603 of the base 60, and the lower ends of the suspension wires 90 are connected to the suspension wire connecting parts 621. The embedded sheetmetal 60 of base's inside forms the embedded sheetmetal central opening 622 of base with base central opening complex, encircles the embedded sheetmetal central opening 622 of base and is equipped with a plurality of circuit board connecting portion 623, and circuit board connecting portion 623 is located the circuit board connecting portion of base 60 and dodges the groove 603, and the embedded sheetmetal 62 of base is connected with circuit board 61 electricity through circuit board connecting portion 623. The two sides of the base embedded metal sheet 62 are bent in a direction away from the housing to form a plurality of external connection ends 624, and the base embedded metal sheet 62 is connected with an external circuit, a controller, and the like through the plurality of external connection ends 624. The suspension wire connecting portion 621 is provided with a first material belt 6211, the middle portion of the side portion of the base embedded metal sheet 62 is provided with a second material belt 6212, and the first material belt 6211 and the second material belt 6212 are correspondingly matched with the first material belt cutting groove 606 on the base 60. The circuit board connecting portion 623 is integrally formed with one of the outer connecting ends 624 and is provided with a third tape 6231, and the third tape 6231 is correspondingly engaged with the second tape cutting slot 607 on the base 60.

As shown in fig. 5B, the base embedded metal sheet 62 integrally includes two opposing base embedded metal sheet first side portions 62A and two opposing base embedded metal sheet second side portions 62B, and the base embedded metal sheet second side portions 62B are provided with the above-described external circuit connecting portions 624. One of the base insert sheet metal first side portion 62A and one of the base insert sheet metal second side portion 62B are also provided with a first sensor mounting portion 625 and a second sensor mounting portion 626, respectively. The first sensor mounting portion 625 and the second sensor mounting portion 626 are similar in structure, and the first sensor mounting portion 625 will now be described as an example.

With continued reference to fig. 5B, the first sensor mounting portion 625 is integrally formed with two of the external circuit connection terminals 624, and specifically, the base insert metal sheet first side portion 62A is composed of two elongated metal strips, both ends of which are located at two opposite base insert metal sheet second side portions 62B and bent to form two of the external circuit connection terminals 624. The two metal strips are bent upward at a position near the end of the base embedded metal sheet first side portion 62A to form a first sensor mounting portion 625, and the two metal strips are broken at the first sensor mounting portion 625 to form a first sensor connecting end 6251. The first sensor mounting portion 625 is connected to the metal strip at a location forming an arcuate portion 6252. The sensor installation department is owing to upwards protruding deformation through the metal strip and forms, and consequently the crushing resistance is less strong, presses 62 the in-process of going into base 60 with the embedded sheetmetal of base, and here takes place the rupture easily and breaks, and the utility model discloses the people sets up the arc through unexpected discovery behind a large amount of models modeling and experiments in sensor installation department and metal strip junction, can increase the intensity of sensor installation department, strengthens its crushing resistance.

Referring to fig. 5A-5B, the first sensor mount 625 and the second sensor mount 626 of the base embedded metal sheet 62 are respectively mounted with a first sensor 641 and a second sensor 642, and the first sensor 641 and the second sensor 642 are respectively fitted with two mutually perpendicular magnets of the magnet group 40 to detect displacement of the frame and the carrier on a plane perpendicular to the optical axis (assumed to be Z axis) (i.e., X axis and Y axis), specifically, referring back to fig. 1, the inside of the circuit board 61 is provided with a built-in coil (not shown) which is electrically connected to the base embedded metal sheet 62 through a circuit board connection portion 624 on the base embedded metal sheet 62 and fitted with the magnet group 40 provided in the frame 30 to drive the frame 30 and the carrier 50 to move on the plane perpendicular to the optical axis when energized. When the first sensor 641 or the second sensor 642 detects the displacement of the frame on the X axis or the Y axis, the displacement information is timely fed back to the controller, the controller controls the magnitude and the direction of the current in the circuit board 61, and the frame and the carrier are driven to move on the X axis or the Y axis in the direction opposite to the direction of the detected displacement, so that the optical anti-shake function is realized.

Fig. 6 is a perspective view of the upper spring plate 20 according to an embodiment of the present invention. As shown in fig. 6, the upper spring 20 integrally includes an outer ring 21 and an inner ring 22, the outer ring 21 and the inner ring 22 are movably connected by an elastic member 23, wherein the outer ring 21 is fixedly connected with the frame 30, and the inner ring 22 is fixedly connected with the carrier 50, so that the frame 30 and the carrier 50 are movably connected by the upper spring 20. Specifically, four corners of the outer ring 21 are provided with suspension wire mounting portions 211, the suspension wire mounting portions 211 are connected with upper reed frame mounting portions 212 through connecting strips, the upper reed frame mounting portions 212 are respectively arranged on four sides of the upper reed 20, and two upper reed frame mounting portions 212 are respectively arranged on each side, an opening 213 is formed between the upper reed frame mounting portions 212 and the suspension wire mounting portions 211 to cooperate with the frame protrusion 34 on the frame 30 and avoid the frame protrusion 34.

With continued reference to fig. 6, four carrier mounting portions 221 are formed on the inner ring 22 of the upper reed 20, and the four carrier mounting portions 221 mate with the carrier upper reed mounting portions on the carrier 50, thereby securing the inner ring of the upper reed 20 to the carrier 50. In the present embodiment, the upper spring plate 20 includes two independent upper spring plate first portions and an upper spring plate second portion, that is, the upper spring plate first portion includes one half of the outer ring 21 and the inner ring 22, the upper spring plate second portion includes the other half of the outer ring 21 and the inner ring 22, and the first portion and the second portion together enclose the entire outer ring 21 and the inner ring 22 of the upper spring plate 20 and form a substantially rectangular or square structure as a whole. Further, the elastic member 23 connecting the outer race 21 and the inner race 22 is bent at a right angle into a plurality of stages, thereby increasing the elastic force.

Specifically, the outer ring 21 includes an outer ring first portion 21A and an outer ring second portion 21B, the inner ring 22 includes an inner ring first portion 22A and an inner ring second portion 22B, the inner ring first portion 22A and the outer ring first portion 21A are connected by an elastic strip 23, and the inner ring second portion 22B and the outer ring second portion 21B are also connected by another elastic strip 23. The outer ring first portion 21A and the outer ring second portion 21B preferably have the same shape, the inner ring first portion 22A and the inner ring second portion 22B preferably have the same shape, and the outer ring first portion 21 and the inner ring first portion 22B are described as an example, and the outer ring second portion 21B and the inner ring second portion 22B are described with reference to the respective first portions, and detailed description thereof will be omitted. Both ends of the inner ring first portion 22A are formed with carrier mounting portions 221, each carrier mounting portion 221 is connected to one end of one elastic member 23, and the other end of the elastic member 23 is connected to the outer ring 21A, specifically, the other end of the elastic member 23 is connected to the connecting bar 2111 of the outer ring 21A. The body portion between both ends of the elastic member 23 is formed with a plurality of right angle bends to increase the elastic force between the outer and inner rings. The elastic member 23 connecting both ends of the inner ring first portion 22A first extends toward the middle of the inner ring along the same arc as the inner ring first portion 22A and starts to bend when approaching the middle of the inner ring first portion 22A. The inner ring first portion 22A is formed in an axially symmetric shape as a whole, and the outer ring first portion 21A is also formed in an axially symmetric shape as a whole.

Fig. 7 is a perspective view of the lower reed 80 according to an embodiment of the present invention, as shown in fig. 7, the lower reed 80 also includes an outer ring 81 and an inner ring 82, four corners of the outer ring 81 are provided with lower reed frame installation portions 811, the four lower reed frame installation portions 811 are connected by a lower reed connecting strip 812, the inner ring 82 includes four lower reed carrier installation portions 821, the four lower reed installation portions 821 are respectively located at two opposite sides, and an outer edge parallel to the connecting strip 812 at the same side is formed outside of the two lower reed installation portions 821 at the same side, an inner circumference of the whole inner ring forms a circular structure, and the four lower reed carrier installation portions 821 at the two opposite sides are connected by the connecting strip encircling into a circular arc shape. The outer ring 81 and the inner ring 82 are connected by a lower reed spring 83. The elastic member 83 is preferably composed of an elastic strip, and is preferably disposed on the diagonal of the lower spring 80 having a substantially rectangular shape.

Fig. 8 is a top view of the lens driving mechanism according to an embodiment of the present invention, in which the housing is removed, and fig. 9 is a bottom view of the lens driving mechanism according to an embodiment of the present invention, in which the housing is removed. As shown in fig. 8-9, the utility model discloses an external circuit is connected through the embedded sheetmetal 62 electricity of base direct connection with anti-shake coil (set up the built-in coil in the circuit board promptly), has simplified the circuit for current transfer is more stable, and the transmission distance is shorter, realizes high-efficient optics anti-shake function. Meanwhile, an external circuit is connected with a focusing coil (namely a coil on the carrier) through a metal sheet embedded in the base, the suspension wire and the upper spring sheet, wiring of a circuit board is not needed, the circuit is simplified, the stability of the circuit is higher, and the focusing effect is better. Simultaneously first sensor and second sensor also pass through embedded sheetmetal of base and external circuit and controller lug connection, and signal transmission is high-efficient stable, and the reliability is high.

To sum up, the utility model discloses a camera lens actuating mechanism has that the circuit is simple, and intensity is high, beneficial technological effect such as good reliability.

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

Claims (10)

1. The frame is provided with a central opening, and four inner walls used for mounting the magnet group are formed around the central opening.

2. The frame according to claim 1, wherein four corners of an upper surface of the frame facing the upper spring are provided with protrusions protruding upward to limit the frame in the optical axis direction.

3. The frame of claim 2, wherein an inner side of the protrusion near the central opening of the frame is provided with a spring-on-frame mounting portion to which an outer race of the upper spring is connected.

4. The frame of claim 2, wherein an outer side of the projection forms a countersink, and wherein the upper spring mounting portion extends around an inner side of the projection and forms a sidewall of the countersink with the projection.

5. The frame of claim 1, wherein the retaining groove has a first opening facing the upper spring and a second opening facing the carrier, the first opening being disposed on an upper surface of the frame and the second opening being disposed on the inner wall.

6. The frame of claim 1, wherein two retaining grooves are provided on each of a pair of opposing inner walls of the frame.

7. The frame of claim 6, wherein two retaining grooves on each of the inner walls are disposed at either end of the inner wall.

8. The frame of claim 6, wherein the retaining grooves on the pair of opposing inner walls are arranged in facing relation.

9. The frame according to claim 1, wherein four corners of the frame are further provided with frame suspension wire mounting grooves extending in a height direction of the frame to receive suspension wires.

10. The frame of claim 1, wherein each of the four interior walls has a magnet pack mounting slot formed therein, each of the magnet pack mounting slots having an interior opening facing the carrier and a lower opening facing the base.

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