CN218767522U

CN218767522U - Lens driving mechanism and circuit board thereof

Info

Publication number: CN218767522U
Application number: CN202223423746.2U
Authority: CN
Inventors: 请求不公布姓名; 彭坤; 林聪�; 刘富泉; 吕新科
Original assignee: Henan Hozel Electronics Co Ltd
Current assignee: Henan Haoze Electronics Co ltd Kunshan Branch
Priority date: 2022-12-19
Filing date: 2022-12-19
Publication date: 2023-03-28
Anticipated expiration: 2032-12-19

Abstract

The utility model discloses a lens driving mechanism and a circuit board thereof, wherein the circuit board is applied to the lens driving mechanism which comprises a driving motor, a movable bracket and a frame, and a first group of coils is arranged in the frame; the movable support is movably arranged in the frame and is provided with a first group of magnets matched with the first group of coils; the driving motor is arranged in the movable bracket and comprises a carrier, an inner shell and a supporting seat; the inner shell is connected with the supporting seat and is provided with a second group of magnets; the carrier is movably arranged in the inner shell and is provided with a second group of coils matched with the second group of magnets. The circuit board comprises a first board body and a control chip, wherein the first board body is connected with the frame and is electrically connected with an external power supply, a first group of coils and a second group of coils; the control chip is connected to the first plate body and is used for controlling the first group of coils and the second group of coils. The control chip is arranged outside the driving motor, so that the internal space of the driving motor can be reduced, the driving motor is lighter, and the market demand is met.

Description

Lens driving mechanism and circuit board thereof

Technical Field

The utility model relates to an electronic equipment technical field, in particular to camera lens actuating mechanism and circuit board thereof.

Background

In recent years, with the development of science and technology, many electronic devices have a function of taking pictures or recording videos, and in order to take pictures using various scenes, the lens needs to be continuously focused, so that many different components are arranged to be matched with each other.

In order to drive the lens to move more quickly, the driving motor needs to be lighter to meet the market demand. There is therefore a need for an improved configuration of a prior art lens driving mechanism to more conveniently drive the lens for focusing.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a camera lens actuating mechanism and circuit board thereof to solve the problem that exists among the above-mentioned prior art.

In order to solve the above technical problem, the utility model provides a circuit board, the circuit board includes: the circuit board is applied to a lens driving mechanism, the lens driving mechanism comprises a driving motor, a movable support and a frame, and a first group of coils are arranged in the frame; the movable support is provided with a first group of magnets matched with the first group of coils and can be movably arranged in the frame; the driving motor is arranged in the movable support and comprises a carrier, an inner shell and a supporting seat; the inner shell is connected with the supporting seat and is provided with a second group of magnets; the carrier is movably installed in the inner shell and be equipped with second group magnetite complex second group coil, the circuit board includes:

the first plate body is connected with the frame and is used for being electrically connected with an external power supply, the first group of coils and the second group of coils;

and the control chip is connected to the first plate body and is used for controlling the first group of coils and the second group of coils.

In one embodiment, the supporting seat is provided with a connecting block, and the connecting block extends from the periphery of the supporting seat to the outside of the movable bracket; the circuit board further comprises a connecting portion, and the connecting portion is connected with the first board body and used for being connected with the connecting block.

In one embodiment, the first board body is annular and is sleeved outside the frame, and the control chip is connected to the top surface of the first board body.

In one embodiment, the first plate body is in a rectangular ring shape, and the control chip is located at a corner of the first plate body.

In one embodiment, the connecting portion extends from a radially inner side of the first plate body toward an inner portion.

In one embodiment, the connecting portion is provided with a connecting hole, and the connecting block is provided with a column body located in the connecting hole.

In one embodiment, the circuit board further comprises a support bracket, the support bracket comprising:

a first section connected to an outer side of the first plate body and aligned with the connection portion in a radial direction;

the middle section extends from one end of the first section, which is far away from the support frame, along the axial direction; and

the tail section, the tail section by the middle section is kept away from the one end of first section is along radial orientation the inside extension of support frame, the connecting block centre gripping in connecting portion with between the tail section.

In one embodiment, the circuit board further comprises:

the top end of the connecting sheet is connected with one end of the tail section, which is far away from the middle section, and the bottom end of the connecting sheet extends towards the bottom and is far away from the tail section; and

the second plate body is located below the first plate body and connected with the bottom end of the connecting piece, and the second plate body is located below the driving motor and used for mounting an imaging chip.

In one embodiment, the first plate is clamped with the frame.

The utility model discloses still relate to a camera lens actuating mechanism, include:

the coil winding device comprises a frame, a winding mechanism and a winding mechanism, wherein the frame is annular and is provided with a first group of coils;

the movable support is annular and can be movably arranged in the frame, and the movable support is provided with a first group of magnets;

a drive motor mounted within the movable support and including:

a supporting seat; the supporting seat is positioned in the movable support and is provided with a connecting block, and the connecting block extends to the outside of the movable support from the periphery of the supporting seat;

the inner shell is connected to the top surface of the supporting seat and matched with the supporting seat to form an accommodating space, and a second group of magnets are arranged on the inner shell; and

the carrier is used for mounting the lens and can be movably mounted in the accommodating space, and the carrier is provided with a second group of coils;

the circuit board, first plate body with the frame with the connecting block is connected, the circuit board with first group coil with second group coil electricity is connected, first group coil cooperation first group magnetite is used for the drive the actuating motor motion, second group coil cooperation second group magnetite is used for the drive the carrier is along the motion of optical axis direction, control chip control first group coil with second group coil.

The utility model discloses a circuit board is equipped with control chip, can reduce driving motor's inner space for driving motor lightweight more, thereby drive carrier and camera lens motion more easily, satisfy the market demand.

Drawings

One or more embodiments are illustrated by way of example in the accompanying drawings which correspond to and are not to be construed as limiting the embodiments, in which elements having the same reference numeral designations represent like elements throughout, and in which the drawings are not to be construed as limiting in scale unless otherwise specified.

Fig. 1 and 2 are exploded views of a lens driving mechanism according to an embodiment of the present invention.

Fig. 3 is an exploded view of a drive motor according to an embodiment of the present invention.

Fig. 4 and 5 are perspective views of the circuit board in the embodiment shown in fig. 1.

Fig. 6 is an assembly view of the circuit board, the movable bracket and the driving motor in the embodiment shown in fig. 1.

Fig. 7 is an assembly view of the circuit board and the side circuit board in the embodiment shown in fig. 1.

Fig. 8 is an assembly view of the frame, the movable bracket, the driving motor, and the circuit board in the embodiment shown in fig. 1.

100. A lens driving mechanism; 1. a circuit board; 11. a control chip; 12. a first plate body; 13. a second plate body; 14. a connecting portion; 15. a support frame; 151. a first stage; 152. a middle section; 153. a tail section; 154. connecting sheets; 16. a third plate body; 17. a fourth plate body; 2. a housing; 3. a frame; 31. a side circuit board; 311. a vertical plate; 312. a horizontal plate; 32. a first set of coils; 34. a limiting groove; 35. an avoidance groove; 36. a side frame; 37. a support plate; 4. a drive motor; 41. a supporting base; 411. connecting blocks; 412. a cylinder; 42. an inner shell; 43. a second group of magnets; 44. a carrier; 45. a spring plate is arranged; 46. a reed is put down; 5. a movable support; 51. a limiting bulge; 52. a first group of magnets; 53. avoiding holes; 54. a holding block; 6. and (5) a reed.

Detailed Description

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

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.

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

Various embodiments of the present invention will be described in detail below with reference to the accompanying drawings so that the objects, features and advantages of the invention can be more clearly understood. It should be understood that the embodiments shown in the drawings are not intended as limitations on the scope of the invention, but are merely illustrative of the true spirit of the technical solution of the invention.

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

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

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

The utility model relates to a camera lens actuating mechanism 100 and circuit board 1 thereof, this camera lens actuating mechanism 100's circuit board 1 are equipped with control chip 11, and this control chip 11 can the current direction and the switch of the inside coil of simultaneous control driving motor 4 and the current direction and the switch of the coil on the frame 3, it is right to combine the figure below the utility model discloses a camera lens actuating mechanism 100 detailed description of an embodiment.

In the embodiment shown in fig. 1 and 2, the lens driving mechanism 100 includes a housing 2, a frame 3, a movable bracket 5, a driving motor 4, four reeds 6, and a circuit board 1. Wherein, the frame 3 is rectangular ring-shaped and has a central hole, and the frame 3 is used for bearing the movable bracket 5 and the driving motor 4. Shell 2 is rectangle casing and bottom opening, and shell 2 wraps up in frame 3 periphery to form the space that the shell held movable support 5 and driving motor 4 with the cooperation of frame 3, prevent that the foreign matter from getting into in the driving motor 4, influencing the shooting quality.

Four sides of the frame 3 are respectively provided with four sets of first coils 32, and as shown in fig. 7, the four first coils 32 are respectively connected to the side circuit boards 31 and respectively located in the four sides of the frame 3. The movable support 5 is located in the frame 3 and can move in the frame 3, four lateral portions of the movable support 5 are respectively provided with four first group magnets 52, as shown in fig. 1, the four first group magnets 52 are respectively arranged opposite to the four first group coils 32, and the four first group magnets 52 are respectively matched with the four first group coils 32 to drive the movable support 5 to move in the frame 3. The driving motor 4 is fixedly arranged inside the movable support 5, and when the movable support 5 moves, the driving motor 4 can be driven to move.

In practice, when the shooting angle needs to be adjusted, the current direction or the current magnitude of the four first coils 32 can be adjusted through the control chip 11, and the four first coils 32 can drive the movable support 5 to drive the driving motor 4 to move by matching with the four first magnets 52, so as to meet the shooting requirement and prevent the camera from shaking. In one embodiment, when a single first set of coils 32 is energized, the first set of coils 32 may cooperate with the first set of magnets 52 disposed opposite thereto to drive one side of the movable support 5 upward or downward. Or, opposite currents are input to two sets of first coils 32 which are oppositely arranged, and the two sets of first coils 32 are respectively matched with the two first magnets 52 which are oppositely arranged with the two sets of first coils 32 so as to drive one side of the movable support 5 to ascend and the other side of the movable support 5 to descend, thereby performing the swinging action. Alternatively, two first coils 32 of adjacent sets are simultaneously supplied with current, and the other two first coils 32 are supplied with opposite current or are powered off, so as to drive one corner of the movable support 5 to ascend, and the other corner opposite to the corner to descend, thereby enabling the movable support 5 to perform different swinging motions. Through the cooperation of the four first group coils 32 and the four first group magnets 52, the movable bracket 5 can swing at multiple angles as required to prevent the lens from shaking. It should be understood that the number of the first group of coils 32 and the first group of magnets 52 is not limited as long as the movable bracket 5 can be driven to move and the anti-shake requirement can be satisfied.

The movable support 5 is also rectangular ring-shaped and movably mounted in the frame 3. There is a gap between the outer periphery of the movable bracket 5 and the inner surface of the frame 3, which allows the movable bracket 5 to have a certain movable range within the frame 3. In addition, as shown in fig. 2, two corners of the movable bracket 5, which are oppositely arranged, are provided with limiting protrusions 51, and the limiting protrusions 51 are located outside the movable bracket and extend from the top surface of the movable bracket 5 toward the bottom. The inner surface of the frame 3 is provided with two limiting grooves 34 for accommodating the two limiting protrusions 51, the limiting grooves 34 extend from the top surface to the bottom surface of the frame 3, and the limiting grooves 34 can allow the limiting protrusions 51 to have a certain moving space therein and can limit the rotating amplitude of the limiting protrusions 51 around the optical axis of the lens, thereby limiting the rotating amplitude of the movable bracket 5.

The four reeds 6 are respectively positioned at the bottom of the frame 3, one ends of the four reeds 6 are respectively connected with four corners of the frame 3, and the other ends of the four reeds 6 are respectively connected with four corners of the movable bracket 5. The four reeds 6 are elastic, and after the movable support 5 drives the driving motor 4 to move, the four reeds 6 can drive the movable support 5 and the driving motor 4 to reset.

The driving motor 4 is installed in the ring of the movable support 5 and is fixedly connected with the movable support 5, and the connection mode of the driving motor 4 and the movable support 5 is not limited, and can be selected, but not limited to, bolted connection, bonding, clamping or overlapping and the like.

The driving motor 4 includes a support base 41, an inner case 42, a carrier 44, an upper spring 45, and a lower spring 46. As shown in fig. 3, the supporting seat 41 is used for supporting the carrier 44, the bottom of the inner shell 42 is open and connected to the top of the supporting seat 41, and the inner shell 42 is provided with a second set of magnets 43 and cooperates with the supporting seat 41 to form an accommodating space. The carrier 44 is used for mounting the lens, a second group of coils is wound outside the carrier 44, and the second group of coils can be matched with the second group of magnets 43 after being electrified so as to drive the carrier 44 and the lens to move along the optical axis direction, and further the focal length of the lens is adjusted.

Both upper spring 45 and lower spring 46 are resilient, and a portion of upper spring 45 is attached to the inner surface of inner housing 42 and another portion is attached to the top of carrier 44. One part of the lower spring 46 is connected with the bottom of the carrier 44, the other part is connected with the supporting seat 41, and the upper spring 45 and the lower spring 46 are matched to drive the carrier 44 to move and then reset. It should be understood that the specific shape of upper spring plate 45 and lower spring plate 46 is not limited as long as carrier 44 can be driven to reset.

The support base 41 is provided with a connecting block 411, and as shown in fig. 3, the connecting block 411 is located at a corner of the support base 41. The movable bracket 5 is provided with an avoiding hole 53 at a corner corresponding to the connecting block 411, as shown in fig. 8, the frame 3 is provided with an avoiding groove 35 at a corner corresponding to the connecting block 411, and the avoiding groove 35 is aligned with the avoiding hole 53 in the radial direction. The connecting block 411 sequentially passes through the avoiding hole 53 and the avoiding groove 35 from the periphery of the supporting base 41 and extends to the outside of the frame 3 for being connected with the circuit board 1. Further, the support base 41 is provided with an internal circuit which extends to the connection block 411 and is electrically connected to the connection portion 14 of the circuit board 1. The support base 41 is electrically connected to the lower spring 46, the lower spring 46 is electrically connected to the coil of the carrier 44, and the current can flow from the circuit board 1, the internal circuit of the support base 41, the lower spring 46 to the coil of the carrier 44, and then the coil of the carrier 44 is energized.

The circuit board 1 includes a first board 12, a control chip 11, a second board 13, a third board 16, and a fourth board 17 for connecting to an external power supply, and a built-in circuit is provided in the circuit board 1 and flows from the first board 12 into the second board 13.

Specifically, as shown in fig. 4 and 5, the first plate 12 is ring-shaped and is fitted around the outer periphery of the frame 3, the fourth plate 17 extends from the outside of the first plate 12 to the outside of the frame 3 and the case, and the third plate 16 is parallel to one side of the frame and is electrically connected to the fourth plate 17 and the side circuit board 31. Specifically, as shown in fig. 7, the side circuit board 31 is provided with a built-in circuit and includes a ring-shaped horizontal plate 312 and four vertical plates 311, the four vertical plates 311 are respectively mounted to four sides of the frame 3, and the four first-group coils 32 are respectively disposed on the four vertical plates 311 and located at the four sides of the frame 3. The horizontal plate 312 is attached to the bottom surface of the frame 3, and the third plate 16 is located below the first plate 12 and electrically connected to the horizontal plate 312 at the bottom. Current may flow from the fourth plate 17, the third plate 16 to the horizontal plate 312, and then the four first group coils 32 are energized through the four vertical plates 311, respectively. In addition, the circuit board 1 may also be electrically connected to the second group of coils through the first board body 12, the second board body 13 or the side circuit board 31, and the specific manner of electrically connecting the circuit board 1 to the second group of coils is not shown in the drawings, i.e., the specific manner of electrically connecting the circuit board 1 to the second group of coils is not limited.

In the embodiment shown in fig. 1 and 2, the frame 3 comprises a side frame 36 and four support plates 37, the side frame 36 is a rectangular frame, and the movable support 5 is located inside the side frame 36. The top surfaces of the four support plates 37 are flush with each other and extend away from the side frame 36 from the four corner outer side surfaces of the side frame 36, respectively. The first board 12 is a rectangular frame and is sleeved outside the side frame 36 and is stacked on the top surface of the supporting plate 37. In addition, the top surface of one of the four supporting plates 37 is provided with a connecting column, and the first plate body 12 is provided with a connecting hole sleeved on the connecting column, so that the connecting column can prevent the first plate body 12 from rotating around the side frame 36, and the relative stability between the first plate body 12 and the frame 3 is increased.

It should be understood that in other embodiments, the first board 12 may have any other shape and may be connected to any position of the frame 3. In addition, the frame 3 may also be in a rectangular frame shape, and the first plate 12 may be directly sleeved outside the frame 3 or attached to the outer side surface of the frame 3; or the first plate body 12 is directly clamped or bonded with the outer side surface of the frame 3, etc., the first plate body 12 may also be connected with the top surface or the bottom surface of the frame 3, without limiting the specific connection mode of the first plate body 12 and the frame 3.

The control chip 11 is connected to the first board 12 and electrically connected to the built-in circuit, and the control chip 11 can control the first group of coils 32 to work independently, for example, can control the current direction, current magnitude or switch of the first group of coils 32 independently; the control chip 11 can also control the current direction, magnitude or switch of the second group of coils; or the first set of coils 32 and the second set of coils are controlled to work simultaneously as required, and the movement of the carrier 44 and the movable support 5 is controlled by controlling the current direction, magnitude or switching of the first set of coils 32 and the second set of coils to adjust the focal distance or prevent jitter.

Among the prior art, control chip 11 sets up in driving motor 4, the utility model discloses a control chip 11 sets up in first plate body 12, and is located driving motor 4 outside, can reduce driving motor 4's inner space for driving motor 4 is lighter-weighted more, thereby drives carrier 44 and camera lens motion more easily, satisfies the market demand. Moreover, among the prior art, need switch, the current direction or the size of every group coil of a plurality of chips control respectively, the utility model discloses only through a control chip 11 simultaneous control first group coil 32 and second group coil, also can reduce control chip 11's quantity, reduce camera lens actuating mechanism 100's weight to make holistic camera lens actuating mechanism 100 lightweight more.

In the embodiment shown in fig. 4 and 5, the control chip 11 is connected to the top surface of the first board 12 at one corner, and the control chip 11 and the connection hole are located at the same corner. It should be understood that, in other embodiments, the control chip 11 may be disposed at other positions, such as a side portion of the first board 12 or an outer side of the third board 16, and the specific position of the control chip 11 is not limited.

Further, the circuit board 1 further includes a connecting portion 14 and a supporting frame 15, wherein the connecting portion 14 is connected to the first board body 12, extends from an inner side surface of the first board body 12 toward the inside, and overlaps a top surface of the connecting block 411. The support frame 15 includes a leading section 151, a middle section 152, and a trailing section 153. As shown in fig. 6, the first segment 151 extends from the outer side surface of the first plate body 12 in a radial direction away from the first plate body 12. The middle section 152 extends from the end of the first section 151 away from the first plate 12 along the axial direction away from the first section 151, and the middle section 152 is substantially perpendicular to the first section 151 and is located below the first section 151. The end surface of the middle section 152 far from the first section 151 extends inward in the radial direction, passes through the avoiding hole 53 and the avoiding groove 35, extends into the movable bracket 5, and abuts against the bottom surface of the connecting block 411, that is, the connecting block 411 is clamped between the end section 153 and the connecting part 14. It should be understood that only the connection portion 14 may be provided, and the connection portion 14 and the connection block 411 may be connected by snapping, adhering or other means, or the connection portion 14 may extend from the outer side surface of the annular circuit board 1 toward the outside, and the connection block 411 may extend to the top surface or the bottom surface of the connection portion 14 and be connected to the connection portion 14, and the specific connection manner of the connection portion 14 and the connection block 411 is not limited.

In addition, the connecting portion 14 is provided with a connecting hole, and the connecting block 411 is provided with a column 412, and the column 412 is positioned in the connecting hole, so that the connecting block 411 can be prevented from being separated from the connecting portion 14, and the connecting stability of the connecting portion 14 and the connecting block 411 can be improved.

Further, as shown in fig. 6, the movable bracket 5 is further provided with a supporting block 54, the supporting block 54 extends from the bottom wall of the avoiding hole 53 to the outside and extends to the outside of the frame 3 through the avoiding groove 35 of the frame 3, the top surface of the supporting block 54 supports the tail section 153 of the supporting frame 15, and the bottom surface overlaps the supporting plate 37 to support the supporting frame.

The tail section 153 of the support frame 15 is further connected with a connecting piece 154, and the connecting piece 154 is used for being connected with the second plate body 13. Specifically, the tail section 153 of the support frame 15 extends in the radial direction and passes through the escape hole 53 and the escape groove 35, and extends to the inner surface of the moving frame 3. The connecting piece 154 has a top end connected to an end of the tail section 153 of the support frame 15 away from the middle section 152, and a bottom end extending axially toward the bottom. The second plate 13 is a substantially rectangular plate and is connected to the bottom end of the connecting piece 154, and the second plate 13 is located below the first plate 12. The second plate body 13 is used for mounting an imaging chip, which is aligned with the lens along the optical axis. The built-in circuit in the circuit board 1 extends from the first board 12 to the second board 13 through the supporting frame 15 and the connecting sheet 154, and is used for supplying power to the imaging chip. When the movable support 5 moves, the support frame 15 can be pulled, the first segment 151 of the support frame 15 extends towards the outside, so that the deformation space of the support frame 15 can be provided, the movable support 5 is convenient to move, and the support frame 15 can be prevented from driving the first plate body 11 to move.

The driving motor 4 is connected with the circuit board 1 through the connecting part 14, and the circuit board 1 is a flexible circuit board 1 and has certain flexibility and elasticity, so that the movement of the driving motor 4 and the movable support 5 is not influenced. In addition, when the movable support 5 and the driving motor 4 move, the connecting portion 14 and the supporting frame 15 are torn to move, and since the first plate 12 is sleeved outside the frame 3, the first plate 12 can also assist the four reeds 6 in driving the movable support 5 and the driving motor 4 to return.

The utility model discloses a circuit board 1 of camera lens actuating mechanism 100 is equipped with control chip 11, can reduce driving motor 4's inner space for driving motor 4 is lighter-weight more, thereby drives carrier 44 and camera lens motion more easily, satisfies the market demand.

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

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

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

Claims

1. A circuit board is applied to a lens driving mechanism, the lens driving mechanism comprises a driving motor, a movable support and a frame, and a first group of coils are arranged in the frame; the movable support is provided with a first group of magnets matched with the first group of coils and can be movably arranged in the frame; the driving motor is arranged in the movable support and comprises a carrier, an inner shell and a supporting seat; the inner shell is connected with the supporting seat and is provided with a second group of magnets; the carrier is movably installed in the inner shell and be equipped with the second group coil of second group magnetite complex, its characterized in that, the circuit board includes:

2. The circuit board of claim 1, wherein the support base is provided with a connection block extending from an outer periphery of the support base to an outside of the movable bracket; the circuit board further comprises a connecting part, and the connecting part is connected with the first board body and is used for being connected with the connecting block.

3. The circuit board of claim 2, wherein the first board is annular and is disposed outside the frame, and the control chip is connected to a top surface of the first board.

4. The circuit board of claim 3, wherein the first board body is a rectangular ring, and the control chip is located at a corner of the first board body.

5. The circuit board according to claim 4, wherein the connecting portion extends from a radially inner side of the first plate body toward an inner portion.

6. The circuit board of claim 5, wherein the connecting portion is provided with a connecting hole, and the connecting block is provided with a column located in the connecting hole.

7. The circuit board of claim 5, further comprising a support bracket, the support bracket comprising:

the middle section extends from one end of the head section, which is far away from the support frame, along the axial direction; and

8. The circuit board of claim 7, further comprising:

9. The circuit board of claim 1, wherein the first board body is clamped to the frame.

10. A lens driving mechanism, comprising:

a drive motor mounted within the movable support and including:

the circuit board according to any one of claims 1 to 9, wherein the first board is connected to the frame and the connection block, the circuit board is electrically connected to the first set of coils and the second set of coils, the first set of coils cooperates with the first set of magnets to drive the driving motor to move, the second set of coils cooperates with the second set of magnets to drive the carrier to move along the optical axis, and the control chip controls the first set of coils and the second set of coils.