CN113985563A

CN113985563A - Double-support elastic piece type anti-shake system, lens driving device and camera equipment

Info

Publication number: CN113985563A
Application number: CN202111265458.6A
Authority: CN
Inventors: 代迪; 潘寅
Original assignee: New Shicoh Motor Co Ltd
Current assignee: New Shicoh Motor Co Ltd
Priority date: 2021-10-28
Filing date: 2021-10-28
Publication date: 2022-01-28
Anticipated expiration: 2041-10-28
Also published as: CN113985563B

Abstract

The invention relates to a double-support elastic sheet type anti-shake system, a lens driving device and an image pickup apparatus. It has solved technical problem such as current anti-shake motor circular telegram complicacy. The double-support spring sheet type anti-shake system comprises a circuit board; a plurality of embedded coils which are embedded and fixed in the circuit board; the anti-shake outer frame is connected to the lens driving base through two opposite first reeds; the anti-shake inner frame is connected to the anti-shake outer frame through two opposite second reeds and is positioned in the anti-shake outer frame; the first embedded metal reinforcing sheets are provided with two pieces and are embedded and fixed on the anti-shake outer frame, and each first embedded metal reinforcing sheet enables one first reed and one second reed to be electrically conducted for supplying power to the focusing coil; the magnet group is provided with a plurality of magnet positioning grooves which are fixed on the anti-shake inner frame, and one magnet group corresponds to one embedded coil. The invention has the advantages that: the power supply structure is simple and stable.

Description

Double-support elastic piece type anti-shake system, lens driving device and camera equipment

Technical Field

The invention belongs to the technical field of anti-shake motors, and particularly relates to a double-support elastic sheet type anti-shake system, a lens driving device and camera equipment.

Background

In the image pickup apparatus, an image pickup motor for carrying a lens and also for driving purposes such as anti-shake and focusing is installed.

The anti-shake motor needs X, Y direction movement for adjustment and focus adjustment in the optical axis direction, and the adjustment needs to supply power to the corresponding coil. In the anti-shake motor, the power supply to focusing coil has the electrically conductive mode that adopts the suspension wire even more complicated to supply power now, and is not only with high costs, but also is unfavorable for the equipment, and power supply stability is poor, seriously influences packaging efficiency and product quality.

Secondly, the above-mentioned conduction method leads to a larger volume of the anti-vibration motor, which is not conducive to the development of miniaturization.

In addition, the existing anti-shaking method adopts a memory alloy wire or a suspension wire mode, so that the cost is high and the assembly process is complex.

Disclosure of Invention

The present invention has been made in view of the above problems, and an object of the present invention is to provide a dual mount system with a circuit, a lens driving device, and an image pickup apparatus that can solve the above problems.

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

the double-support spring sheet type anti-shake system comprises a circuit board;

a plurality of embedded coils which are embedded and fixed in the circuit board;

the anti-shake outer frame is connected to the lens driving base through two opposite first reeds;

the anti-shake inner frame is connected to the anti-shake outer frame through two opposite second reeds and is positioned in the anti-shake outer frame;

the first embedded metal reinforcing sheets are provided with two pieces and are embedded and fixed on the anti-shake outer frame, and each first embedded metal reinforcing sheet enables one first reed and one second reed to be electrically conducted for supplying power to the focusing coil;

and the magnet group is provided with a plurality of magnet positioning grooves which are fixed on the anti-shake inner frame, and one magnet group corresponds to one embedded coil so as to drive the anti-shake inner frame to move in the X-axis direction and the anti-shake outer frame to move in the Y-axis direction.

In the above-mentioned double-support elastic sheet type anti-shake system, the anti-shake system further includes four embedded metal blocks, the four embedded metal blocks are embedded and fixed on the anti-shake inner frame, one magnet group corresponds to one embedded metal block and is magnetically connected to the inner side of the embedded metal block.

In the double-support elastic sheet type anti-shake system, each second spring sheet is electrically connected with one embedded metal block, and the two embedded metal blocks electrically connected with the second spring sheets are used for supplying power to the focusing coil.

In the double-support spring sheet type anti-shake system, the middle part of each first embedded metal reinforcing sheet is respectively provided with an embedded conductive part, the first embedded metal reinforcing sheet and the embedded conductive part form a T shape, and the conductive part is connected with the first spring sheet to realize electrical conduction.

In the double-support spring sheet type anti-shake system, the middle part of each second spring sheet is respectively provided with an extended conductive part, and the extended conductive part is connected with the embedded metal block to realize electrical conduction.

In the above-mentioned double-support elastic sheet type anti-shake system, the circuit board is fixed on an end surface of the lens driving base close to the lens.

In the above-mentioned double-mount elastic sheet type anti-shake system, the lens driving base includes:

the bottom frame is manufactured by injection molding;

a plurality of embedded metal reinforcing sheets are embedded and fixed in the bottom frame;

the circuit board is fixed on the bottom frame, and the embedded metal reinforcing sheet is electrically connected with the circuit board; the embedded metal reinforcing sheet is electrified to enable the circuit board to supply power to the embedded coil, and each first reed is electrically conducted with one embedded metal reinforcing sheet.

The lens driving device is provided with the double-support elastic sheet type anti-shake system and a lens bearing frame positioned in the anti-shake inner frame, the lens bearing frame is connected to the anti-shake inner frame through an upper reed and a lower reed, the outer circumference of the lens bearing frame is wound with focusing coils, the magnet groups are provided with four groups and distributed on the periphery of the focusing coils, and the focusing coils are electrically conducted with the upper reed.

In the lens driving device, the upper spring plate includes two sub spring plates, and the two embedded metal blocks electrically connected to the second spring plate are electrically connected to the two sub spring plates respectively.

The present invention also provides an image pickup apparatus having the lens driving device as described above.

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

the design of the injection molding part with a built-in metal part saves layout space, can greatly reduce the volume of the motor, and accords with the development trend of motor microminiaturization.

The circuit series connection double-support framework is conducted through the anti-shake elastic pieces and the metal piece, the anti-shake and focusing functions are achieved, the assembly and machining difficulty is reduced, the power-on reliability of a product is improved, the design is more reasonable, and the manufacturing cost is reduced.

The first reed and the second reed replace the original memory alloy wire and suspension wire, so that the anti-shaking requirement can be met, the manufacturing, assembling and machining difficulty is greatly reduced, the production and machining efficiency is greatly improved, and the large-batch production is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of a lens driving device provided by the present invention.

Fig. 2 is a schematic diagram of a partial explosion structure of the lens driving device provided by the present invention.

Fig. 3 is a schematic diagram of a further exploded structure of fig. 2.

Fig. 4 is a schematic diagram of a further exploded structure of fig. 3.

Fig. 5 is an exploded view of the lens driving base and the circuit board according to the present invention.

Fig. 6 is a schematic structural diagram of a lens driving base provided by the present invention.

Fig. 7 is a schematic view of the explosion structure of the anti-shake outer frame and the anti-shake inner frame provided by the invention.

Fig. 8 is a schematic view of the explosion structure of the anti-shake inner frame and the second reed provided by the invention.

Fig. 9 is a schematic view of the anti-shake inner frame structure provided by the present invention.

Fig. 10 is a schematic view of a bottom view angle structure of the anti-shake inner frame provided by the present invention.

Fig. 11 is a schematic view of a third carrier lens structure according to an embodiment of the invention.

Fig. 12 is a schematic structural diagram of a third embodiment of a mobile phone according to the present invention.

In the figure, a lens driving base 1, a bottom frame 10, a welding avoidance notch 100, a glue storage tank 101, an avoidance step 102, an embedded metal reinforcing sheet 11, an internal welding terminal 110, an external electric terminal 111, a positioning column 12, a hall sensor 13, a boss 14, a circuit board 2, an embedded coil 20, a positioning hole 21, a clamping part 22, an anti-shake outer frame 3, an elastic sheet fixing part 30, an anti-shake inner frame 4, a first spring sheet 41, a second spring sheet 42, an extension conductive part 420, a first embedded metal reinforcing sheet 43, an embedded conductive part 430, a second embedded metal reinforcing sheet 44, a magnet positioning groove 45, a magnet group 46, an internal magnet 460, an external magnet 461, an embedded metal block 47, a spring sheet fixing part 48, a second spring sheet positioning pin 480, a lens bearing frame 5, a focusing coil 50, an upper spring sheet 6, a bullet sheet 60, a lower spring sheet 7 and a shell 8.

Detailed Description

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

As shown in fig. 2, 5 and 6, the double-bracket leaf spring type anti-shake system of the present embodiment includes:

the lens driving base 1 comprises a bottom frame 10, an embedded metal reinforcing sheet 11, a circuit board 2 and an embedded coil 20.

Preferably, the bottom frame 10 of the present embodiment is manufactured by injection molding, and the bottom frame 10 has a cylindrical inner wall, and four-sided outer circumferential surfaces.

The embedded metal reinforcing plate 11 is embedded inside the bottom frame 10, and the embedded metal reinforcing plate 11 plays a plurality of roles of conducting electricity and reinforcing the structure of the bottom frame 10.

The rear end face of the bottom frame 10 is an installation fixing face, the front end face of the bottom frame 10 is an end face close to the lens, the circuit board 2 is fixed on the front end face of the bottom frame 10, the embedded metal reinforcing sheet 11 is electrically connected with the circuit board 2, and the electrical connection can be electrically connected with a metal piece through welding.

The circuit board 2 of the present embodiment is a flexible FPC circuit board.

The embedded coils 20 are built into the circuit board 2 in advance, and two pairs of embedded coils 20 are connected in advance within the circuit board 2. One of the pair of embedded coils 20 is driven for X-axis anti-shake, and the other pair of embedded coils 20 is driven for Y-axis anti-shake.

By using the pre-embedded and embedded structure, the thickness of the lens driving device in the optical axis direction can be greatly reduced, thereby achieving the purpose of further reducing the occupied space.

As shown in fig. 5 and 6, in order to improve the mounting efficiency, a plurality of positioning posts 12 are disposed on one end surface of the bottom frame 10 close to the lens, a plurality of positioning holes 21 into which the positioning posts 12 are inserted one by one are disposed on the circuit board 2, and the positioning posts 12 are inserted into the positioning holes 21. Preferably, the number of the positioning posts 12 in this embodiment is 2-4, and the number of the positioning holes 21 is equal to the number of the positioning posts 12.

Secondly, when there are 3 or more positioning posts 12, one positioning hole 21 is a kidney-shaped hole, which facilitates fine adjustment of the mounting position of the circuit board.

Meanwhile, in order to further improve the fixing firmness of the circuit board, 1-4 glue storage grooves 101 are formed in the front end face of the bottom frame 10, and each glue storage groove is internally provided with a glue which is connected with the circuit board. The glue storage tank can ensure that the front end surfaces of the circuit board and the bottom frame 10 are in a surface-to-surface fitting mode, and the installation firmness is ensured.

As shown in fig. 5 and 6, bosses 14 are provided at four corners of the front end surface of the base frame 10, and a locking portion 22 located between two adjacent bosses 14 is connected to the outer peripheral surface of the circuit board 2. The boss 14 of the present embodiment is equal in height to the thickness of the circuit board to prevent assembly interference. A sensor avoiding groove is provided on any two bosses 14, and a hall sensor 13 is provided in each sensor avoiding groove and directly connected to the embedded metal reinforcing sheet 11. One hall sensor 13 is used for detecting the displacement of the lens in the X axis, and the other hall sensor 13 is used for detecting the displacement of the lens in the Y axis. The embedded metal reinforcing sheet 11 is directly connected with the embedded metal reinforcing sheet 11 and is used for supplying power, the cost is low, and the assembly difficulty is reduced.

The inner embedded metal reinforcing sheet 11 is connected with inner welding terminals 110 which extend into the welding avoiding gap 100 one by one, and the inner welding terminals 110 are connected with the circuit board 2 in a welding mode. By utilizing the structure to weld, the welding quality of a welding position can be ensured, the production efficiency can be further improved, and meanwhile, the space is further saved.

Preferably, the weld avoiding notch 100 of the present embodiment is any one of a U-shaped opening and a V-shaped opening. And the inner welding terminal 110 of the present embodiment has any one of a U-shape and a V-shape.

As shown in fig. 5 and 6, the inner welding terminal 110 is formed with a U-shaped or V-shaped opening that may facilitate weld overlay with a circuit board.

Of course, at least one avoidance step 102 is provided at one end of the welding avoidance gap 100 close to the rear end face of the bottom frame to perform an avoidance function.

The inner solder terminal 110 is conformed to the circuit board 2, that is, the inner solder terminal 110 has a flush surface with the front end surface of the bottom frame, so that the circuit board is directly conformed to the inner solder terminal 110 to secure a soldering quality.

Preferably, the number of the embedded metal reinforcing pieces 11 of the present embodiment is equal to the number of the welding avoidance notches 100, each embedded metal reinforcing piece 11 is connected with an inner welding terminal 110, and one welding avoidance notch 100 corresponds to one inner welding terminal 110. The number of the welding avoidance gaps 100 is 4, that is, the embedded metal reinforcing sheet 11 of the present embodiment is 4, two of which supply power to the embedded coil, and the other two of which supply power to the focusing coil.

As shown in fig. 5 and 6, an external connection terminal 111 extending to the outside of the bottom frame 10 is connected to each embedded metal reinforcing plate 11. The external electrical terminals 111 are distributed along the optical axis direction, i.e., are protruded from the rear end surface of the bottom frame.

The external connection terminal 111 is perpendicular to the rear end surface of the bottom frame.

The embedded coil 20 is embedded inside the clamping portion 22.

In addition, each boss 14 is provided with a convex column 15.

The first spring plate 41 has two pieces and is parallel to each other.

As shown in fig. 1 to 4 and 7, both ends of each first spring 41 are respectively mounted on the lens driving base 1, and the anti-shake housing 3 has two opposite sides and two opposite other sides, i.e., two sides of the X axis and two sides of the Y axis.

The middle of one first spring 41 is fixed to one of the two opposite sides of the anti-shake outer frame 3, and the middle of the other first spring 41 is fixed to the other of the two opposite sides.

Either end of each first spring plate 41 is in contact with the corresponding embedded metal reinforcing plate 11 to achieve electrical conduction. Two ends of the first spring 41 are respectively fixed on two adjacent convex columns 15, and the two are connected by a buckling hole and a convex buckle, and the connection mode of the buckling hole and the convex buckle is the same as or similar to that of a first convex buckle and a first buckling hole which are described below.

As shown in fig. 1-4 and 7-10, the spring fixing parts 30 are respectively connected to two opposite sides of the anti-shake frame 3 near the base, the first springs 41 are located below the corresponding sides of the anti-shake frame 3 where the spring fixing parts 30 are located, the middle parts of the first springs 41 are respectively provided with a plurality of second pin holes, the outer surfaces of the spring fixing parts 30 are provided with first pins into which the second pin holes are inserted one by one, and the anti-shake frame 3 is connected to the lens driving base 1 by using the structure.

The first spring 41 is located below the corresponding side of the anti-shake frame 3 where the spring fixing portion 30 is located, which can reduce the diameter of the lens driving device.

And a second leaf spring 42 having two pieces and being parallel to each other.

The anti-shake inner frame 4 has two opposite X-axis sides and two opposite Y-axis sides.

Two ends of each second spring 42 are respectively fixed to two ends of each side edge of the other two side edges of the anti-shake outer frame 3, and the middle of each second spring 42 is respectively fixed to two corresponding side edges, i.e. two Y-axis side edges, of the anti-shake inner frame 4.

The embedded metal reinforcement piece has four and is embedded respectively inside the four sides of anti-shake frame 3, namely, two first embedded metal reinforcement pieces 43 that are parallel to each other and two second embedded metal reinforcement pieces 44 that are parallel to each other, and a first embedded metal reinforcement piece 43 and a first reed 41 electricity of a slice are connected.

Specifically, an embedded conductive portion 430 is disposed in the middle of each first embedded metal reinforcing plate 43, the first embedded metal reinforcing plate 43 and the embedded conductive portion 430 form a T shape, and the conductive portion 430 is in contact with the first reed 41 to achieve conductivity.

One second spring plate 42 is electrically connected to one first embedded metal reinforcing plate 43, and the other second spring plate 42 is electrically connected to the other first embedded metal reinforcing plate 43.

The rear end of the anti-shake inner frame 4 close to the lens driving base 1 is provided with magnet groups 46 corresponding to the embedded coils 2 one by one, the anti-shake outer frame 3 is driven by the two opposite magnet groups 46 and the two opposite embedded coils 2 in a matched mode to move on the Y axis, the anti-shake inner frame 4 is driven by the other two opposite magnet groups 46 and the other two opposite embedded coils 2 in a matched mode to move on the X axis, and the X axis movement and the Y axis movement play a role in anti-shake. Four magnet positioning grooves 45 are formed in the inner wall of the anti-shake inner frame 4, a magnet group 46 is mounted in each magnet positioning groove 45, and a magnet group 46 and an embedded coil 20 are distributed in the axial direction of the optical axis in a relative manner.

Energizing the opposing embedded coils 20 in conjunction with the respective magnet pack 46 achieves anti-shake in either the X-axis or the Y-axis motion.

In order to realize focusing, the present embodiment designs 2 to 4 embedded metal blocks 47, preferably, the embedded metal blocks 47 are respectively embedded at four sides of the anti-shake inner frame 4, the transverse cross section of the embedded metal block 47 is L-shaped, and the magnet set 46 is attached to the inner surface of the embedded metal block 47, that is, one groove wall of the magnet positioning groove 45 is the inner surface of the embedded metal block 47, one second spring 42 corresponds to one embedded metal block 47 and is electrically connected with the two, preferably, the middle part of each second spring 42 is respectively provided with an extended conductive part 420, the extended conductive part 420 is electrically connected with the outer surface of the embedded metal block 47 in a contact manner, and can also be electrically connected with one side of the L-shaped embedded metal block 47 away from the magnet set 46 in a contact manner.

The embedded metal block 47 has the functions of electric conduction and magnetic enhancement, so that the magnet group 46 and the embedded coil have stronger electromagnetic thrust when matched.

Anti-shake inside casing 4 is by injection moulding, in order to ensure the fixed fastness of embedded metal block 47, is equipped with the spread groove respectively at embedded metal block 47's last side and both ends, and then flows into the spread groove and forms unsmooth cooperation fixed connection after the solidification by the injection molding after the injection moulding of anti-shake inside casing 4.

Preferably, the connecting groove of the present embodiment is any one or a combination of a dovetail groove and a U-shaped groove.

In order to make second reed 42 fixed more stable, be close to at anti-shake inside casing 4 two corresponding outer walls of second reed 42 have reed fixed part 48 respectively, be equipped with second reed locating pin 480 on reed fixed part 48, the middle part of second reed 42 is equipped with the confession second reed patchhole that second reed locating pin 480 inserted one by one realizes that the middle part of second reed is connected fixedly, and simultaneously, reed fixed part 48 is located between anti-shake frame 3 and the lens drive base, the aforesaid is L shape that is L shape and inlays solid metal block 47, it includes the vertical portion that pastes with the magnet group and connects in the horizontal portion of vertical portion downside, the outside limit contact that vertical portion was kept away from to foretell extension conductive part 420 and horizontal portion realizes electrically conducting.

Secondly, two ends of the second spring 42 are respectively fixed to two ends of a corresponding side surface of the outer wall of the anti-shake outer frame 3, for example, two ends of the corresponding side surface of the outer wall of the anti-shake outer frame 3 are respectively provided with a first convex buckle, two ends of the second spring 42 are respectively provided with a first buckle hole corresponding to the first convex buckles one by one, and the first convex buckles are buckled in the first buckle holes.

The magnet group 46 includes an inner magnet 460 installed in the magnet positioning groove 45 and having an outer surface conforming to the inner surface of the vertical portion, and a lower side of the inner magnet protruding below the inner surface of the vertical portion, and an outer magnet 461 conforming to the outer surface of the inner magnet protruding below the inner surface of the vertical portion, and having an upper surface conforming to the lower surface of the horizontal portion, and having a lower surface flush with the lower surface of the inner magnet. The lower surfaces of the inner magnet and the outer magnet are located above the corresponding embedded coils.

The working principle of the embodiment is as follows:

the embedded metal reinforcing sheets 11 are provided with four sheets for supplying power to the anti-shaking device, and two sheets for focusing and supplying power are provided.

Anti-shake: the anti-shake is X axle and Y axle anti-shake, and embedded metal reinforcing piece 11 utilizes external electricity terminal 111 to get the electricity, then embedded metal reinforcing piece 11 and circuit board 2 switch on, and after getting electric in two pairs of embedded coils 20 this moment, the corresponding magnet group 46 of cooperation makes anti-shake frame 3 remove in Y axle direction, and after getting electric in another pair of embedded coils 20, the corresponding magnet group 46 of cooperation makes anti-shake inside casing 4 remove in X axle direction.

Focusing: the two embedded metal reinforcing sheets 11 supply power to the focus, that is, the embedded metal reinforcing sheets 11 and the first reeds 41 are conducted, the first reeds 41 and the first embedded metal reinforcing sheets 43 are conducted, the first embedded metal reinforcing sheets 43 and the second reeds 42 are conducted, the second reeds 42 and the embedded metal blocks 47 are conducted, the embedded metal blocks 47 and the sub-elastic sheets 60 are conducted, that is, the focusing coil is conducted, the focusing coil and the magnet group 46 are used for generating the lorentz force distributed along the optical axis, and the lorentz force drives the lens bearing frame 5 to move in the axial direction of the optical axis, so that the focusing is realized.

When power is supplied, the power supply to the focus coil is realized by sequentially conducting h1-h5 in the attached drawing 2, and each point of h1-h5 is a welding point, for example, the first welding point h1, and so on.

Example two

As shown in fig. 1 to 4, the present embodiment provides a lens driving apparatus, which includes a lens driving base 1 according to the first embodiment, an anti-shake outer frame 3 moving in the Y axis relative to the lens driving base 1, and an anti-shake inner frame 4 moving in the X axis relative to the anti-shake outer frame 3, wherein the anti-shake inner frame 4 is located inside the anti-shake outer frame 3.

As shown in fig. 2-4, the lens driving device further includes a lens bearing frame 5 located in the anti-shake inner frame 4, the lens bearing frame 5 is connected to the anti-shake inner frame 4 through an upper spring plate 6 and a lower spring plate 7, as shown in fig. 7-10, the upper spring plate 6 of this embodiment includes two sub spring plates 60, two embedded metal blocks 47 electrically connected to the second spring plate 42 are respectively electrically connected to two sub spring plates 60, that is, the two embedded metal blocks 47 are respectively in contact with and welded to the sub spring plates 60 (refer to the h5 pointing point in fig. 2 as a contact welding point), and the focusing coil 50 wound around the outer circumference of the lens bearing frame 5, one end of the focusing coil 50 is connected to one sub spring plate 60, and the other end of the focusing coil 50 is connected to the other sub spring plate 60. The magnet groups 46 are distributed on the circumferential periphery of the focusing coil 50, further, the outer magnets of the magnet groups 46 are distributed on the circumferential periphery of the focusing coil 50, and the focusing coil 50 is matched with the magnet groups 46 after obtaining the electricity of the sub-elastic pieces 60, so that the lens bearing frame 5 is driven to move in the axial direction of the optical axis, and focusing is achieved.

The inner and outer magnets may enhance the electromagnetic thrust, and the built-in metal block 47 may further enhance the electromagnetic thrust. Further, the two magnets are fixedly reinforced by embedding and embedding the metal block 47;

the inner side of the circle center of the AF (big) magnet in the magnetizing direction is an N pole, and the outer side is an S pole; OIS (small) magnet can be an N pole upwards and an S pole downwards; the center of the circle can be an N pole at the inner side and an S pole at the outer side;

the structure effectively increases the utilization rate and the thrust-weight ratio of the double-support frame.

The L-shaped embedded metal block 47 and the magnet structure can effectively save space and increase the thrust-weight ratio.

The lens driving device further comprises a shell 8, the shell 8 is buckled on the lens driving base 1, and the anti-shake outer frame 3, the anti-shake inner frame 4 and the lens bearing frame 5 are located in a cavity formed by the lens driving base 1 and the shell 8.

EXAMPLE III

Based on embodiment two, as shown in fig. 11 to 12, this embodiment provides an image pickup apparatus having the lens driving device described in embodiment two, which carries a lens. Camera devices such as mobile phones and electronic tablets, etc.

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

Claims

1. Double-support shell fragment formula anti-shake system, including circuit board (2), its characterized in that, anti-shake system still includes:

a plurality of embedded coils (20) which are embedded and fixed in the circuit board (2);

the anti-shake outer frame (3) is connected to the lens driving base (1) through two opposite first reeds (41);

the anti-shake inner frame (4) is connected to the anti-shake outer frame (3) through two opposite second reeds (42), and the anti-shake inner frame (4) is positioned in the anti-shake outer frame (3);

the first embedded metal reinforcing sheets (43) are provided with two pieces and are embedded and fixed on the anti-shake outer frame (3), and each piece of the first embedded metal reinforcing sheet (43) enables one piece of the first reed (41) and one piece of the second reed (42) to be electrically conducted for supplying power to the focusing coil;

the magnet group (46) is provided with a plurality of magnet positioning grooves (45) which are fixed on the anti-shake inner frame (4), and one magnet group (46) corresponds to one embedded coil (20) so as to drive the anti-shake inner frame (4) to move in the X-axis direction and the anti-shake outer frame (3) to move in the Y-axis direction.

2. The dual-bracket shrapnel type anti-shake system according to claim 1, further comprising embedded metal blocks (47), wherein the embedded metal blocks (47) are four and embedded on the anti-shake inner frame (4), a magnet group (46) corresponds to one embedded metal block (47) and the magnet group (46) is magnetically connected to the inner side of the embedded metal block (47).

3. The double-bracket leaf spring type anti-shake system according to claim 1, wherein each second leaf spring (42) is electrically connected to one embedded metal block (47), and the two embedded metal blocks (47) electrically connected to the second leaf spring (42) are used for supplying power to the focusing coil.

4. The dual-bracket leaf-spring type anti-shake system according to claim 1, wherein an embedded conductive part (430) is respectively disposed in the middle of each first embedded metal reinforcing plate (43), the first embedded metal reinforcing plate (43) and the embedded conductive part (430) form a T-shape, and the conductive part (430) is electrically connected to the first leaf spring (41).

5. The double-support elastic sheet type anti-shake system according to claim 1, wherein an extended conductive part (420) is provided in the middle of each second spring sheet (42), and the extended conductive part (420) is electrically connected to the embedded metal block (47).

6. The double-mount leaf spring type anti-shake system according to claim 1, wherein the circuit board (2) is fixed to an end face of the lens driving base (1) near the lens.

7. The dual-mount leaf spring type anti-shake system according to claim 6, wherein the lens driving base (1) comprises:

a bottom frame (10) made by injection molding;

a plurality of embedded metal reinforcing sheets (11) are embedded and fixed in the bottom frame (10);

the circuit board (2) is fixed on the bottom frame (10), and the embedded metal reinforcing sheet (11) is electrically connected with the circuit board (2); the embedded metal reinforcing sheet (11) is electrified to enable the circuit board (2) to supply power to the embedded coil (20), and each first reed (41) is electrically conducted with one embedded metal reinforcing sheet (11).

8. Lens driving device, characterized in that the driving device has a double-support elastic sheet type anti-shake system as claimed in any one of claims 1 to 7, and a lens bearing frame (5) located in the anti-shake inner frame (4), the lens bearing frame (5) is connected to the anti-shake inner frame (4) through an upper spring sheet (6) and a lower spring sheet (7), a focusing coil (50) is wound around the outer circumference of the lens bearing frame (5), the magnet groups (46) are four groups and distributed at the periphery of the focusing coil (50), the focusing coil (50) and the upper spring sheet (6) are electrically conducted, and the magnet groups (46) and the focusing coil (50) cooperate to make the lens bearing frame (5) move axially on the optical axis.

9. The lens driving device according to claim 8, wherein the upper spring (6) comprises two sub-springs (60), and the two metal blocks (47) electrically connected to the second spring (42) are electrically connected to the two sub-springs (60), respectively.

10. An image pickup apparatus characterized in that the image pickup device has the lens driving device according to claim 9.