CN220421908U - Image pickup driving device - Google Patents

Abstract

The utility model discloses a camera shooting driving device, comprising: the device comprises an optical element, a reed assembly, a carrier assembly, a focusing driving assembly and an anti-shake driving assembly; the carrier assembly comprises a lens carrier and a support carrier, the support carrier comprises a first support carrier and a second support carrier, the first support carrier is of a plastic injection structure, and the second support carrier is of a metal stamping structure; the reed assembly comprises an upper reed and a lower reed, wherein the upper reed comprises a plane part, a bending part and a bending connecting part; the first support carrier of the support carrier has flexibility, can solve the problem that the structure of the support carrier is easy to crack after mechanical impact of the anti-shake driving assembly, and improves the structural strength of the support carrier. The bending part of the upper reed adopts an asymmetric structure, and the damping rubber is inserted into the independent damping rubber inserting part, so that damping contact can be reduced, the stress of the whole reed is reduced, and the anti-shake effect is improved.

Description

Image pickup driving device

Technical Field

The utility model belongs to the field of image pickup devices, and particularly relates to an image pickup driving device.

Background

In the existing hand-held optical products in the market, such as digital cameras, video cameras, mobile phones and other optical systems, the optical lens group and the camera driving device are matched and combined. In the shooting process, the device is easy to shake due to external force, such as hand holding, vehicle running room and shaking caused by external environment factors, so that the problems of incapability of clearly imaging or image blurring and the like are caused.

The common image compensation system of the mobile phone on the market utilizes a lens translation mode to compensate the light path offset problem, the movable part is mainly suspended and translated by an elastic structure to achieve the light path compensation on the compensation mechanism, and a reed bending mode is adopted, but the compensation mechanism has the following problems: 1. if the Q value of the mechanical quality factor is controlled by changing the structure of the reed bending part or the glue amount of the damping glue, the stress of the reed bending part can change greatly, and meanwhile, the spring stiffness coefficient K value can not be effectively matched with the reed bending part due to the limited glue amount interval, so that the anti-shake effect is affected; 2. the existing support carrier injection molding structure has insufficient structural strength, and the problem of fracture of reliability (mechanical impact) is commonly existed in the industry.

Disclosure of Invention

The utility model aims to provide an image pickup driving device which can improve the structural strength and the anti-shake effect of the image pickup driving device.

In order to achieve the above purpose, the technical scheme adopted by the utility model is as follows:

the optical element, the reed component and the carrier component are arranged in the cavity; the top of the protective shell is provided with a through hole, the optical element penetrates through the through hole, damping grooves are formed in four corners of the base, damping glue is stored in the damping grooves, retaining walls are arranged on the sides of the damping grooves, and the reed assembly comprises an upper reed and a lower reed;

the carrier assembly comprises a lens carrier and a support carrier arranged on the outer side of the lens carrier, the support carrier comprises a first support carrier and a second support carrier arranged on the outer side of the first support carrier, the first support carrier is of a plastic injection structure, and the second support carrier is of a metal stamping structure;

the upper reed comprises a plane part and a bending part, and a bending connecting part for connecting the plane part and the bending part; the plane part comprises a lens carrier fixed end connected with the lens carrier, a support carrier fixed end connected with the support carrier and a base fixed end connected with the retaining wall of the base; the bending part comprises a frame fixing part, a frame swinging part and an inner swinging part arranged between the frame fixing part and the frame swinging part, wherein the lower end of the frame swinging part is provided with a damping glue inserting part, the inner swinging part is provided with a continuously bent wire frame structure, one end of the lower part of the inner swinging part is connected with the frame fixing part, and the other end of the lower part of the inner swinging part is connected with the frame swinging part at the upper end of the damping glue inserting part; the damping gel insertion part is used for being inserted into a damping groove on the base of the camera shooting driving device.

Preferably, the lens carrier further comprises a focusing driving assembly and an anti-shake driving assembly, wherein the focusing driving assembly is used for driving the optical element and the lens carrier to move along the Z-axis direction, and the anti-shake driving assembly is used for driving the optical element, the lens carrier and the support carrier to move along the X, Y-axis direction.

Preferably, the lower reed is connected with the bottom surface of the lens carrier and the bottom surface of the support carrier respectively.

Preferably, the upper reed is an integral structure and is composed of four units which are sequentially connected in the circumferential direction, each unit comprises at least 1 lens carrier fixing end, at least 1 support carrier fixing end and at least 1 base fixing end, each support carrier fixing end in each unit is connected with the lens carrier fixing end through a string wire part, the support carrier fixing ends between adjacent units are connected with the lens carrier fixing ends through bending transitional connecting parts, and the bending parts correspond to the positions of the damping grooves on the base.

Preferably, one end of the bending connection part is connected with the plane part, and the other end is respectively connected with the upper end of the frame fixing part and the upper end of the frame swinging part.

Preferably, the planar portion is provided with an electrical connection terminal connected to a focus drive coil of the imaging drive device.

Preferably, the top surface of the lens carrier, the top surface of the support carrier and the top surface of the base retaining wall are respectively provided with an upper reed fixing column connected with the upper reed; the bottom of the lens carrier and the bottom of the support carrier are respectively provided with a lower reed fixing column connected with the lower reed.

Preferably, the base further comprises a bottom plate, the retaining wall and the bottom plate are internally provided with metal reinforcing pieces, the top surface of the retaining wall is provided with exposed ends of the metal reinforcing pieces, and the upper reed is electrically connected with the metal reinforcing pieces through the exposed ends.

Preferably, the metal reinforcement structure further comprises a closed loop assembly, wherein the closed loop assembly is arranged in the base and is electrically connected with the metal reinforcement.

The utility model has the beneficial effects that:

the support carrier of the camera shooting driving device consists of the first support carrier and the second support carrier, wherein the first support carrier is arranged in the second support carrier, the first support carrier is of a plastic injection molding structure, and the second support carrier is of a metal stamping structure, so that the problem that the structure of the support carrier is easy to crack after mechanical impact of anti-shake movement is solved, and the structural strength of the support carrier is improved. The damping rubber inserting part of the upper reed adopts an asymmetric structure, and the damping rubber is inserted into the damping rubber inserting part of a single upper reed, so that damping contact can be reduced, the stress of the whole reed is reduced, a better buffering effect is achieved, the anti-shake effect is improved, and the problems of reliable reed bending and reed wire breakage are solved.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The above and other objects, features and advantages of the present utility model will become more apparent by describing in more detail exemplary embodiments thereof with reference to the attached drawings. Wherein like reference numerals generally refer to like elements throughout the exemplary embodiments.

Fig. 1 shows an exploded view of an image pickup drive apparatus according to an embodiment of the present utility model.

Figure 2 shows a schematic structural view of the upper reed according to an embodiment of the present utility model.

Figure 3 shows the mounting intent of the upper reed of one embodiment of the present utility model.

Figure 4 shows the installation intent of the lower reed of one embodiment of the present utility model.

Fig. 5 shows a schematic structural view of a support carrier according to an embodiment of the present utility model.

Fig. 6 shows a focusing coil mounting intent of one embodiment of the present utility model.

Fig. 7 illustrates an installation intention of an anti-shake coil according to an embodiment of the utility model.

Fig. 8 shows a schematic structural view of a base of an embodiment of the present utility model.

Fig. 9 shows a schematic structural diagram of a closed loop assembly of one embodiment of the present utility model.

Fig. 10 shows an overall configuration diagram of an image pickup drive apparatus according to an embodiment of the present utility model (excluding a protective case).

Reference numerals illustrate: 1. a protective shell; 2. an upper reed; 3. a lens carrier; 4. a support carrier; 5. a lower reed; 6. a magnet assembly; 7. a base; 8. a planar portion; 9. a lens carrier fixed end; 10. a fixed end of the support carrier; 11. a base fixed end; 12. an electrical connection terminal; 13. bending the connecting part; 14. a bending part; 15. a frame fixing part; 16. a frame swing portion; 17. a damping gel insertion part; 18. an inner swing portion; 19. a closed loop assembly; 20. a bare end; 21. a metal reinforcement; 22. a damping groove; 23. a retaining wall; 24. a bottom plate; 25. a first support carrier; 26. an upper reed fixing column; 27. a second support carrier; 28. a focus driving coil; 29. an anti-shake driving coil; 30. a string wire part; 31. bending the transitional connecting part; 32. reinforcing the connection.

Detailed Description

Preferred embodiments of the present utility model will be described in more detail below. While the preferred embodiments of the present utility model are described below, it should be understood that the present utility model may be embodied in various forms and should not be limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art.

As shown in fig. 1 to 10, an image pickup driving apparatus according to an embodiment of the present utility model includes: a protective shell 1 and a base 7 which are mutually buckled to form a cavity, wherein an optical element, a reed component, a carrier component, a focusing driving component and an anti-shake driving component are arranged in the cavity; the top of the protective housing 1 is provided with a through hole, the optical element passes through the through hole, four corners of the base 7 are provided with damping grooves 22, damping glue is stored in the damping grooves 22, retaining walls 23 are arranged at the sides of the damping grooves 22, the reed assembly comprises an upper reed 2 and a lower reed 5, the carrier assembly comprises a lens carrier 3 and a support carrier 4 arranged outside the lens carrier 3, the support carrier 4 comprises a first support carrier 25 and a second support carrier 27 arranged outside the first support carrier 25, the first support carrier 25 is of a plastic injection structure, and the second support carrier 27 is of a metal stamping structure.

As shown in fig. 2, the upper reed 2 includes a planar portion 8, a bent portion 14, and a bent connection portion 13 connecting the planar portion 8 and the bent portion 14; the plane part 8 includes a lens carrier fixing end 9 connected to the lens carrier 3, a support carrier fixing end 10 connected to the support carrier 4, and a base fixing end 11 connected to a retaining wall 23 of the base 7; the bending part 14 comprises a frame fixing part 15, a frame swinging part 16 and an inner swinging part 18 arranged between the frame fixing part 15 and the frame swinging part 16, wherein the lower end of the frame swinging part 16 is provided with a damping glue inserting part 17, the inner swinging part 18 is provided with a continuous bending line frame structure, one end of the lower part of the inner swinging part 18 is connected with the frame fixing part 15, and the other end of the lower part of the inner swinging part 18 is connected with the frame swinging part 16 at the upper end of the damping glue inserting part 17; the damping gel insertion part 17 is used for being inserted into a damping groove 22 on the base 7; the lower reed 5 is respectively connected with the bottom surface of the lens carrier 3 and the bottom surface of the support carrier 4, the focusing driving component is used for driving the optical element and the lens carrier 3 to move along the Z-axis direction, and the anti-shake driving component is used for driving the optical element, the lens carrier 3 and the support carrier 4 to move along the X, Y-axis direction.

Specifically, as shown in fig. 2, the upper reed 2 includes a plane portion 8, a bending portion 14, and a bending connection portion 13, and the plane portion 8 is provided with a lens carrier fixing end 9, a support carrier fixing end 10, and a base fixing end 11, which are respectively fixed with the lens carrier 3, the support carrier 4, and the retaining wall 23; the frame fixing part 15 does little movement and only plays a role in connection and support, the frame swinging part 16 can swing along with the movement of the support carrier 4, the lower end of the frame swinging part 16 is provided with a damping rubber inserting part 17, the inner swinging part 18 is arranged between the frame fixing part 15 and the frame swinging part 16, the inner swinging part 18 is provided with an integrally bent wire frame structure, one end of the lower part of the inner swinging part 18 is connected with the frame fixing part 15, the other end of the lower part of the inner swinging part 18 is connected with the frame swinging part 16 at the upper end of the damping rubber inserting part 17, the damping rubber inserting part 17 enables the lower end of the bending part 14 to form an asymmetric structure of a single claw at one side, the inner swinging part 18 can move along with the frame swinging part 16, the damping rubber inserting part 17 can play a role in vibration inhibition, the damping rubber inserting part 17 can play a role in buffering, the anti-shake performance is improved, the damping rubber is harder after being irradiated, the mechanical impact is easy to be broken normally, the upper rubber inserting part is easy to form a single rubber inserting part 17, the damping rubber inserting part is easy to form a single claw, the damping rubber reed is easy to be broken off, and the whole reed is hard after the damping rubber inserting part is irradiated 2 is irradiated, the damping rubber reed is broken down, the problem is reduced; the K value stress of the existing spring wire can be greatly changed if the length thickness is regulated, and the length and thickness of the damping rubber inserting part 17 can be regulated to control the combination state of the damping rubber inserting part and the damping rubber, so that the K value stress of the whole spring wire structure can not be changed, and the anti-shake effect is improved.

Specifically, as shown in fig. 5, the support carrier 4 is composed of a first support carrier 25 of a plastic injection structure and a second support carrier 27 of a metal stamping structure, the first support carrier 25 is arranged in the second support carrier 27, the first support carrier 25 has a certain flexibility and mainly plays a role in buffering, and the second support carrier 27 has a certain rigidity and mainly plays a role in preventing collision, and meanwhile, the strength of the support carrier 4 can be increased. The problem that the structure of the support carrier 4 is easy to crack after mechanical impact of the anti-shake driving assembly can be solved.

In this embodiment, as shown in fig. 6 and 7, the focusing driving assembly includes a focusing driving coil 28 and a magnet assembly 6, an annular groove for embedding the focusing driving coil 28 is provided on the outer periphery of the lens carrier 3, the focusing driving coil 28 is sleeved in the annular groove on the outer periphery of the lens carrier 3, the magnet assembly 6 includes two pairs of magnets perpendicular to each other in a horizontal plane, and an installation groove for embedding the magnet assembly 6 is provided on the inner side wall of the support carrier 4. In the horizontal direction, the focus drive coil 28 and the magnet assembly 6 correspond in position to each other. The anti-shake driving assembly comprises an anti-shake driving coil 29 and a magnet assembly 6, wherein the anti-shake driving coil 29 is an integrated flat coil and is fixed on the upper surface of the bottom plate 24 of the base 7. In the vertical direction, the anti-shake driving coil 29 corresponds to the position of the magnet assembly 6.

In this embodiment, as shown in fig. 2 and 8, the upper reed 2 is an integral structure and is composed of four units sequentially connected in the circumferential direction, each unit includes two lens carrier fixing ends 9, four support carrier fixing ends 10, and two base fixing ends 11, the support carrier fixing ends 10 in each unit are connected with the lens carrier fixing ends 9 through string wire parts 30, the support carrier fixing ends 10 between the two units are connected with the lens carrier fixing ends 9 through bending transitional connection parts 31, the bending parts 14 correspond to the damping grooves 22 on the base 7, and the damping grooves 22 are located at four corners of the bottom plate of the base 7.

In this embodiment, as shown in fig. 2, one end of the bending connection portion 13 is connected to the planar portion 8, the other end is connected to the upper end of the frame fixing portion 15 and the upper end of the frame swinging portion 16, and the support carrier fixing end 10 and the base fixing end 11 are connected by the reinforcing connection portion 32 to form an integral structure, so that the overall strength of the bending portion is improved.

In the present embodiment, as shown in fig. 2 and 6, the lens carrier fixed end 9 is provided with an electrical connection end 12 for electrical connection with the focus drive coil 28.

In this embodiment, as shown in fig. 3 and 4, the top surface of the lens carrier 3, the top surface of the support carrier 4, and the top surface of the retaining wall 23 are respectively provided with an upper reed fixing column 26 connected with the upper reed 2; the bottom of the lens carrier 3 and the bottom of the support carrier 4 are respectively provided with a lower reed fixing column connected with the lower reed 5.

Specifically, the upper reed 2 is connected to the lens carrier fixing end 9, the support carrier fixing end 10, and the base fixing end 11 through upper reed fixing posts 26, respectively, so that the upper reed 2 is fixed to the top surface of the lens carrier 3, the top surface of the support carrier 4, and the top surface of the retaining wall 23, respectively. The lower reed 5 is respectively connected with the lower fixed end of the lens carrier and the lower fixed end of the carrier component through the lower reed fixing column, so that the lower reed 5 is respectively fixed with the bottom of the lens carrier 3 and the bottom of the supporting carrier 4.

In this embodiment, as shown in fig. 8, the base 7 further includes a bottom plate 24, the retaining wall 23 and the bottom plate 24 are both provided with metal reinforcement members 21, the top surface of the retaining wall 23 is provided with exposed ends 20 of the metal reinforcement members 21, and the upper reed 2 is electrically connected with the metal reinforcement members 21 through the exposed ends 20.

In this embodiment, as shown in fig. 9, the camera driving device further includes a closed loop assembly 19, where the closed loop assembly 19 is disposed in the base 7 and is electrically connected to the metal stiffener 21, and the closed loop assembly 19 includes an anti-shake displacement sensor and a focusing displacement sensor for sensing, feeding back and adjusting the focusing movement condition and the anti-shake movement condition of the optical element. When the optical element, the lens carrier 3 and the support carrier 4 move along the direction X, Y, Z, the optical element, the lens carrier 3 and the support carrier 4 are controlled, and a closed-loop control function is realized.

The working principle of the image pickup driving device of the present embodiment is as follows: the external power supply transmits an electric signal to the metal reinforcement 21, the electric signal is transmitted to the focusing driving coil 28 through the exposed end 20, the bending part 14, the plane part 8 and the electric connection end respectively, and after the focusing driving coil 28 is electrified, the electric signal interacts with the magnet assembly 6 to generate Lorentz force, so that the optical element and the lens carrier 3 are driven to perform focusing movement along the Z direction.

The external power supply transmits an electric signal to the metal reinforcing part 21, the electric signal is transmitted to the anti-shake driving coil 29 through the metal reinforcing part 21 in the base bottom plate, and after the anti-shake driving coil 29 is electrified, the electric signal interacts with the magnet assembly 6 to generate Lorentz force, so that the optical element, the lens carrier 3 and the support carrier 4 are driven to perform anti-shake movement in the X, Y direction.

The embodiments of the present utility model have been described above, the description is illustrative, not exhaustive, and not limited to the disclosed embodiments. Many modifications and variations will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments.

Claims (9)

1. An image pickup drive apparatus comprising: a protective shell (1) and a base (7) which are mutually buckled to form a cavity, wherein an optical element, a reed component and a carrier component are arranged in the cavity;

the protection shell (1) top is equipped with the through-hole, optical element passes the through-hole, the four corners of base (7) is equipped with damping groove (22), the damping glue has been stored in damping groove (22), the side of damping groove (22) is equipped with barricade (23), the reed subassembly includes reed (2) and lower reed (5), its characterized in that:

the carrier assembly comprises a lens carrier (3) and a support carrier (4) arranged on the outer side of the lens carrier (3), the support carrier (4) comprises a first support carrier (25) and a second support carrier (27) arranged on the outer side of the first support carrier (25), the first support carrier (25) is of a plastic injection structure, and the second support carrier (27) is of a metal stamping structure;

the upper reed (2) comprises a plane part (8), a bending part (14) and a bending connecting part (13) for connecting the plane part (8) and the bending part (14); the plane part (8) comprises a lens carrier fixed end (9) connected with the lens carrier (3), a support carrier fixed end (10) connected with the support carrier (4), and a base fixed end (11) connected with the retaining wall (23);

the bending part (14) comprises a frame fixing part (15) and a frame swinging part (16), and an inner swinging part (18) arranged between the frame fixing part (15) and the frame swinging part (16), wherein a damping glue inserting part (17) is arranged at the lower end of the frame swinging part (16), a continuously bent wire frame structure is arranged at the inner swinging part (18), one end of the lower part of the inner swinging part (18) is connected with the frame fixing part (15), and the other end of the lower part of the inner swinging part (18) is connected with the frame swinging part (16) at the upper end of the damping glue inserting part (17); the damping gel insertion part (17) is used for being inserted into a damping groove (22) on the base (7).

2. The image pickup drive apparatus according to claim 1, further comprising a focus drive assembly for driving the optical element and the lens carrier (3) to move in a Z-axis direction, and an anti-shake drive assembly for driving the optical element, the lens carrier (3), and the support carrier (4) to move in a X, Y-axis direction.

3. The imaging driving device according to claim 1, wherein the lower reed (5) is connected to a bottom surface of the lens carrier (3) and a bottom surface of the support carrier (4), respectively.

4. The image pickup driving device according to claim 1, wherein the upper reed (2) is of an integral structure and is composed of four units which are sequentially connected in the circumferential direction, each unit comprises at least 1 lens carrier fixing end (9), at least 1 support carrier fixing end (10) and at least 1 base fixing end (11), the support carrier fixing ends (10) and the lens carrier fixing ends (9) in each unit are connected through string wire parts (30), the support carrier fixing ends (10) and the lens carrier fixing ends (9) between adjacent units are connected through bending transition connecting parts (31), and the bending parts (14) correspond to positions of damping grooves (22) on the base (7).

5. The imaging driving device according to claim 4, wherein one end of the bending connection portion (13) is connected to the planar portion (8), and the other end is connected to an upper end of the frame fixing portion (15) and an upper end of the frame swinging portion (16), respectively.

6. The imaging driving device according to claim 1, wherein the planar portion (8) is provided with an electrical connection terminal (12) connected to a focus driving coil (28) of the imaging driving device.

7. The image pickup drive apparatus according to claim 1, wherein a top surface of the lens carrier (3), a top surface of the support carrier (4), and a top surface of the retaining wall (23) are respectively provided with an upper reed fixing column (26) connected with the upper reed (2); the bottom of the lens carrier (3) and the bottom of the support carrier (4) are respectively provided with a lower reed fixing column connected with the lower reed.

8. The camera driving device according to claim 1, wherein the base (7) further comprises a bottom plate (24), metal reinforcements (21) are arranged in the retaining wall (23) and the bottom plate (24), the top surface of the retaining wall (23) is provided with exposed ends (20) of the metal reinforcements (21), and the upper reed (2) is electrically connected with the metal reinforcements (21) through the exposed ends (20).

9. The camera driving device according to claim 8, further comprising a closed loop assembly (19), the closed loop assembly (19) being disposed within the base (7) and being electrically connected to the metal stiffener (21).