Lens driving mechanism and frame assembly thereof

Abstract

The application discloses a lens driving mechanism and a frame assembly thereof. The frame assembly comprises a frame and a circuit board. The frame comprises a ring-shaped side frame, a ring-shaped support plate and a limiting piece. The ring-shaped side frame is provided with a first coil set. A movable support is mounted in the ring-shaped side frame and is provided with a first magnet set. The first coil set and the first magnet set are matched to drive the movable support to move. The ring-shaped support plate is sleeved outside the ring-shaped side frame. The limiting piece is connected to the top surface of the ring-shaped support plate and is arranged in a spaced mode with the ring-shaped side frame. The circuit board comprises a first annular plate and a second annular plate. The first annular plate is annular and extends around the ring-shaped side frame and is stacked on the top surface of the ring-shaped support plate. The first annular plate is located in the radial inner side of the limiting piece. The second annular plate is located at the bottom of the ring-shaped support plate and is electrically connected with the first annular plate and the first coil set. The frame assembly of the application is stable in structure, can ensure that the circuit board is stably fixed to the inside of the lens driving mechanism and ensure the stability of the internal circuit of the lens driving mechanism.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of electronic equipment, in particular to a lens driving mechanism and a frame assembly thereof. BACKGROUND

[0002] With the development of electronic technology, portable consumer electronic products are more and more popular, such as mobile phones, handheld game consoles, and navigation devices. With the development of technology, these electronic devices are becoming more and more popular, and are developing towards the direction of convenience and thinness, in order to provide users with more choices.

[0003] In practice, in order to adapt to various scene shooting, the lens needs to be continuously focused, and the lens needs to be prevented from being damped during focusing or shooting. In the prior art, a lens driving mechanism is generally used to drive the lens focusing and anti-shake. The lens driving mechanism is provided with a circuit board, which can control the operation of the lens driving mechanism. However, in the process of use, the structure of the circuit board not only needs to adapt to the internal space of the lens driving mechanism, that is, the circuit board needs to be adapted to the internal components of the lens driving mechanism, but also needs to be stably installed in the internal space of the lens driving mechanism. Therefore, it is urgent to develop a lens driving mechanism to stably connect the internal circuit board and internal components. SUMMARY

[0004] The present application aims to provide a lens driving mechanism and a frame assembly thereof to solve the above problems.

[0005] To solve the above technical problems, the present application provides a frame assembly, which is used in a lens driving mechanism, the lens driving mechanism comprising a driving motor and a movable support, the driving motor being installed in the movable support, the movable support being provided with a first magnet group, comprising:

[0006] a frame, the frame comprising:

[0007] a ring-shaped side frame, the ring-shaped side frame being ring-shaped and provided with a first coil group, the movable support being installed in the ring-shaped side frame, the first coil group and the first magnet group cooperating to drive the movable support to move;

[0008] a ring-shaped support plate, the ring-shaped support plate being sleeved outside the ring-shaped side frame and located at the bottom of the ring-shaped side frame;

[0009] a limiting piece, the limiting piece being connected to the top surface of the ring-shaped support plate and being arranged in a spaced manner with the ring-shaped side frame; and

[0010] a circuit board, the circuit board comprising:

[0011] a first annular plate, which is annular and extends around the annular side frame, and is stacked on the top surface of the annular support plate, the first annular plate being located radially inward of the limiting member; and

[0012] a second annular plate, which is located at the bottom of the annular support plate, and is electrically connected with the first annular plate and the first coil group.

[0013] In an embodiment, the circuit board further comprises a first side plate, which is located between the first annular plate and the second annular plate, and is connected with the first annular plate and the second annular plate by welding.

[0014] In an embodiment, the annular support plate is provided with an avoiding groove, which extends from the bottom surface to the top surface of the annular support plate, and the annular side frame is provided with a mounting groove, which is recessed from the outer surface of the annular side frame towards the inside, and is located above the avoiding groove and communicates with the avoiding groove; the circuit board further comprises a second side plate, the bottom end of which is connected with the second annular plate, and the top end thereof extends from the avoiding groove into the mounting groove; the first coil group is connected to the second side plate and located in the mounting groove.

[0015] In an embodiment, the mounting groove comprises:

[0016] a first section, which is recessed from the outer surface of the annular side frame towards the inside, and is used for accommodating the second side plate; and

[0017] a second section, which is recessed from the inner surface of the first section towards the inner surface of the annular side frame, and is used for accommodating the first coil group.

[0018] In an embodiment, the annular support plate is rectangular annular, and four avoiding grooves are respectively located at four side portions of the annular support plate; the annular side frame is rectangular frame, and four mounting grooves are respectively located at four side portions of the annular side frame, and respectively communicate with the four avoiding grooves; four second side plates are respectively connected with the second annular plate, and respectively extend from the four avoiding grooves into the four mounting grooves; four first coil groups are respectively electrically connected with the four second side plates and respectively located in the four mounting grooves.

[0019] In an embodiment, three limiting members are respectively located at three corner portions of the annular support plate.

[0020] In an embodiment, the annular side frame is provided with a first avoiding hole, and the first annular plate is provided with a connecting member, which extends from the first avoiding hole to the inside of the movable support.

[0021] In one embodiment, the driving motor comprises a shell and a carrier, the shell is provided with a second magnet group, the carrier is installed in the shell and provided with a second coil group, the second coil group is electrically connected with the connecting piece and cooperates with the second coil group to drive the carrier to move along the optical axis.

[0022] The circuit board is provided with a control chip for controlling the first coil group and the second coil group.

[0023] In one embodiment, the bottom surface of the annular support plate is provided with a receiving groove extending along the axial direction of the annular support plate and communicating with the four avoiding grooves respectively, and the second annular plate is located in the receiving groove.

[0024] The present application also relates to a lens driving mechanism comprising:

[0025] a base;

[0026] a shell connected with the top of the base and cooperating with the base to form a receiving space;

[0027] the above-mentioned frame assembly, the frame being installed in the receiving space;

[0028] a movable support, which is annular and movably installed in the annular side frame, is provided with a first magnet group, and cooperates with the first coil group to drive the movable support to move;

[0029] a driving motor located in the ring of the movable support; and

[0030] a reset member operatively driving the movable support to reset.

[0031] The frame assembly structure of the present application is stable, which can ensure that the circuit board is stably fixed to the inside of the lens driving mechanism and ensure the stability of the internal circuit of the lens driving mechanism. BRIEF DESCRIPTION OF DRAWINGS

[0032] One or more embodiments are illustrated by way of example in the drawings in which like reference numerals indicate like elements, and in which:

[0033] Figure 1 is an exploded view of the lens driving mechanism of one embodiment of the present application.

[0034] Figure 2 is Figure 1 is an assembly view of the frame assembly and the base in the embodiment shown.

[0035] Figure 3 yes Figure 1 Assembly diagram of the circuit board and the first set of coils in the illustrated embodiment.

[0036] Figure 4 yes Figure 1 Exploded view of the frame assembly in the illustrated embodiment.

[0037] Figure 5 yes Figure 1 A three-dimensional view of the frame, movable bracket and reset member in the illustrated embodiment.

[0038] Figure 6 and Figure 7 yes Figure 3 Assembly diagram of the frame assembly and movable bracket in the illustrated embodiment.

[0039] Figure 8 yes Figure 1 Exploded view of the drive motor in the illustrated embodiment.

[0040] Reference numerals: 100, lens drive mechanism; 1, frame assembly; 11, frame; 111, annular side frame; 112, annular support plate; 113, stopper; 114, avoidance groove; 115, mounting groove; 1151, first section; 1152, second section; 116, first avoidance hole; 117, receiving groove; 118, first shoulder; 12, circuit board; 121, first annular plate; 122, second annular plate; 123, first side plate; 124, second side plate; 125, connecting rod Connector; 1251, first part; 1252, second part; 126, control chip; 127, first coil group; 2, movable bracket; 21, second avoidance hole; 22, second shoulder; 23, first magnet group; 24, first extension; 3, drive motor; 31, housing; 311, second magnet group; 32, upper spring; 33, carrier; 34, lower spring; 35, seat; 351, protrusion; 352, second extension; 4, housing; 5, reset member; 6, base. DETAILED DESCRIPTION

[0041] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, each embodiment of the present invention will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will appreciate that in each embodiment of the present invention, many technical details are provided to facilitate a better understanding of the present application. However, even without these technical details and various variations and modifications based on the following embodiments, the technical solutions claimed in the present application can still be implemented.

[0042] In the following description, for the purpose of illustrating the various disclosed embodiments, certain specific details are set forth in order to provide a thorough understanding of the various disclosed embodiments. However, those skilled in the relevant art will recognize that the embodiments may be practiced without one or more of these specific details. In other cases, 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.

[0043] Unless the context requires otherwise, throughout the specification and claims, the word "comprise" and variations such as "include" and "have" should be construed in an open, inclusive sense, that is, should be interpreted to mean "including, but not limited to."

[0044] The following will describe in detail various embodiments of the present invention in conjunction with the accompanying drawings to provide a clearer understanding of the objectives, features and advantages of the present invention. It should be understood that the embodiments shown in the accompanying drawings are not intended to limit the scope of the present invention, but are only intended to illustrate the essential spirit of the technical solution of the present invention.

[0045] 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 "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 manner in one or more embodiments.

[0046] 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.

[0047] In the following description, in order to clearly show the structure and working mode of the present invention, many directional words will be used for description, but words such as "front", "back", "left", "right", "outside", "inside", "outward", "inward", "up", and "down" should be understood as convenient terms and should not be understood as restrictive terms.

[0048] The present invention relates to a lens driving mechanism 100, such as Figure 1 As shown, the lens drive mechanism 100 includes a base 6, a housing 4, a frame assembly 1, a movable bracket 2, a reset member 5, and a drive motor 3. The base 6 is a rectangular plate with a protruding latch at its top edge. The housing 4 is a rectangular shell with an open bottom. The bottom of the housing 4 engages with the latch of the base 6 and cooperates with the base 6 to form a storage space for accommodating the frame assembly 1, the movable bracket 2, the reset member 5, and the drive motor 3, thereby preventing foreign matter from entering the drive motor 3 and affecting shooting.

[0049] The frame assembly 1 comprises a frame 11 and a circuit board 12, the frame 11 is mounted on the top surface of the base 6 and located in the accommodating space, and the frame 11 is used to accommodate the movable support 2 and the driving motor 3.

[0050] Specifically, as shown in Figure 2 , Figure 4 and Figure 5 , the frame 11 comprises a ring-shaped side frame 111, a ring-shaped support plate 112 and a limiting piece 113. The ring-shaped side frame 111 is a rectangular frame body and comprises four side plates. The four side plates extend along the optical axis direction and are connected end to end to form a ring shape, and are used to accommodate the movable support 2. The ring-shaped support plate 112 is sleeved on the outside of the ring-shaped side frame 111, the ring-shaped support plate 112 is formed by the plate shape extending outward from the outer surface of the ring-shaped side frame 111, and the plane where the ring-shaped support plate 112 is located is perpendicular to the optical axis direction. In addition, the ring-shaped support plate 112 is located at the bottom of the ring-shaped side frame 111, and the bottom surface is substantially flat with the bottom surface of the ring-shaped side frame 111.

[0051] The ring-shaped support plate 112 is substantially rectangular and has four corners. The three limiting pieces 113 are respectively cylindrical bodies extending along the optical axis direction, and are respectively located at three corners of the ring-shaped support plate 112. The three limiting pieces 113 are arranged in a radial direction and are spaced apart from the ring-shaped side frame 111.

[0052] The three limiting pieces 113 are all cylindrical bodies, and extend away from the ring-shaped support plate 112 from the top surface of the ring-shaped support plate 112. The top surface of the three limiting pieces 113 does not exceed the top surface of the ring-shaped side frame 111.

[0053] The circuit board 12 comprises a first annular plate 121, a second annular plate 122, a first side plate 123 and four second side plates 124, as shown in Figure 3 and Figure 4 , the first annular plate 121 surrounds the ring-shaped side frame 111 and is stacked on the top surface of the ring-shaped support plate 112, and is located on the radial inner side of the limiting piece 113, that is, the three limiting pieces 113 are respectively located on the radial outer side of the first annular plate 121, so that the first annular plate 121 can limit the movement of the first annular plate 121.

[0054] The second annular plate 122 is mounted on the bottom surface of the ring-shaped support plate 112. Specifically, the bottom surface of the ring-shaped support plate 112 is provided with an accommodating groove 117 extending along the circumferential direction of the ring-shaped support plate 112 and forming an annular shape, and the second annular plate 122 is located in the accommodating groove 117. The second annular plate 122 is mounted in the accommodating groove 117, which can be more stably connected to the frame 11.

[0055] Preferably, the accommodating groove 117 is shaped to match the second annular plate 122, which can be clamped into the accommodating groove 117, thereby enhancing the connection stability of the second annular plate 122 with the frame 11. In Figure 4 In the illustrated embodiment, the four side portions of the annular support plate 112 are further respectively provided with an avoiding groove 114, which extends from the top surface of the annular support plate 112 towards the bottom surface, penetrates the annular support plate 112 along the thickness direction of the annular support plate 112, and is in communication with the accommodating groove 117. The four avoiding grooves 114 extend from the top surface of the annular support plate 112 towards the bottom portion into the accommodating groove 117, and the bottom portions of the four second side plates 124 are respectively located in the four avoiding grooves 114 and connected with the second annular plate 122, and the top ends extend out of the annular side frame 111 and are embedded in the annular side frame 111.

[0056] It should be understood that the size and shape of the four avoiding grooves 114 are not limited, and the size and shape of the four avoiding grooves 114 can be set according to the size needs of the four second side plates 124.

[0057] The four side plates of the annular side frame 111 are respectively provided with a mounting groove 115, as shown in Figure 4 and Figure 5 The mounting groove 115 includes a first section 1151 and a second section 1152. The first section 1151 is recessed from the outer surface of the side plate towards the inside, and the bottom surface of the first section 1151 is in communication with the avoiding groove 114, and the four second side plates 124 can pass from the avoiding groove 114 into the first section 1151.

[0058] The second section 1152 is recessed from the inner wall of the first section 1151 along the radial direction towards the inside, and the first section 1151 extends along the radial direction to the inner surface of the side plate, so that the mounting groove 115 is a through groove. The inner surface of the four second side plates 124 is respectively provided with four first coil groups 127, and the four first coil groups 127 are respectively located in the first section 1151 of the four mounting grooves 115.

[0059] The four second side plates 124 are respectively electrically connected with the second annular plate 122 and the four first coil groups 127, the second annular plate 122 is electrically connected with the first annular plate 121 through the first side plate 123, the first annular plate 121 can be electrically connected with an external power supply, and the current can flow into the first coil group 127 through the first annular plate 121, the first side plate 123, the second annular plate 122 and the second side plate 124, thereby energizing the first coil group 127.

[0060] Specifically, the first side plate 123 extends along the optical axis direction and is located between the first annular plate 121 and the second annular plate 122, as shown in Figure 3As shown, the top surface of the first side plate 123 is connected to the first annular plate 121 by welding, and the second side plate 124 is connected to the second annular plate 122 by welding. The plane in which the first side plate 123 is arranged is substantially perpendicular to the planes in which the first annular plate 121 and the second annular plate 122 are arranged. The first side plate 123 is connected to the first annular plate 121 and the second annular plate 122 by welding, which can increase the stability between the first side plate 123 and the first annular plate 121 and the second annular plate 122.

[0061] In the prior art, the first side plate 123 is integrally formed with the first annular plate 121 or the second annular plate 122, and is bent to the required shape from the first annular plate 121 or the first annular plate 121. The first side plate 123 after bending has stress to restore to the original state, which can drive the first side plate 123 to gradually move towards the original state, thereby driving the first annular plate 121 and the second annular plate 122 to deviate from the preset position, and also driving the first coil group 127 to deviate from the preset position, thereby affecting the shooting. In the present application, the first side plate 123 is welded to the first annular plate 121 and the second annular plate 122, and there is no problem of original stress, thereby enabling the first annular plate 121, the second annular plate 122, the first side plate 123 and the second side plate 124 to be relatively stably connected to the frame 11.

[0062] The movable support 2 is movably installed inside the annular side frame 111. Specifically, as shown in FIG. 2, the movable support 2 is movably installed inside the annular side frame 111. Figure 5 and Figure 6As shown, the movable bracket 2 is installed in the annular side frame 111 and is spaced apart from the inner surface of the annular side frame 111. The distance between the outer surface of the movable bracket 2 and the inner surface of the annular side frame 111 can be set as needed to meet the movement requirements of the movable bracket 2. In addition, a first avoidance hole 116 is provided at a corner of the annular side frame 111, and the first avoidance hole 116 interrupts the connection position of the two adjacent side plates. The annular support plate 112 is provided with a first shoulder 118 at the corner corresponding to the first avoidance hole 116. The first shoulder 118 is located on the inner surface of the annular support plate 112. The movable bracket 2 is annular and has a first extension 24 on its outer surface. The first extension 24 is located at the corner of the movable bracket 2 corresponding to the first avoidance hole 116 and overlaps the first shoulder 118. The first shoulder 118 can support the movable bracket 2. It should be understood that in order to ensure that the movable bracket 2 is stably installed in the annular side frame 111, the annular side frame 111 may also be provided with two or three support components similar to the first shoulder 118, each support component being located at a corner of the annular side frame 111. The outer surface of the movable bracket 2 may also be provided with multiple first extensions 24, each of which overlaps multiple support components. The multiple support components can ensure that the movable bracket 2 is stably installed in the annular side frame 111 without restricting the movement of the movable bracket 2. In addition, the first shoulder 118 may be omitted, and the movable bracket 2 may be directly mounted on the top surface of the base plate.

[0063] The four sides of the movable bracket 2 are respectively mounted on the four first magnet groups 23 . The four first magnet groups 23 are embedded in the four sides of the movable bracket 2 and respectively cooperate with the four first coil groups 127 to drive the movable bracket 2 to move.

[0064] The driving motor 3 is installed in the movable bracket 2. Specifically, Figure 8 As shown, the drive motor 3 includes a housing 31, a carrier 33, a base 35, an upper spring 32, and a lower spring 34. The base 35 is rectangular and annular and has a built-in circuit. The housing 31 is connected to the top of the base 35 and is connected to the base 35. The housing 31 and the base 35 cooperate to form a storage space. In addition, a second magnet group 311 is located within the housing 31.

[0065] The carrier 33 is used to install the lens, the carrier 33 is externally wound with the second coil set, the second coil set is electrically connected with the circuit board 12, and the second coil set is energized to cooperate with the second magnet set 311 to drive the carrier 33 to move along the optical axis direction, so as to adjust the focal length of the lens. The upper spring sheet 32 is connected with the inner surface of the shell 31 and the top of the carrier 33, and the lower spring sheet 34 is connected with the bottom of the carrier 33 and the top of the seat body 35. The upper spring sheet 32 and the lower spring sheet 34 are both elastic, and the upper spring sheet 32 and the lower spring sheet 34 cooperate to elastically connect the carrier 33 with the shell 31 and the seat body 35, and drive the carrier 33 to reset after the carrier 33 moves. In addition, the lower spring sheet 34 can be conductive, and the lower spring sheet 34 is electrically connected with the built-in circuit of the base 6 and the second coil set.

[0066] In addition, the inner surface of the movable support 2 is provided with two or more second shoulders 22, and the outer surface of the seat body 35 is further provided with two protrusions 351, which are respectively located at two corners and are respectively overlapped on each second shoulder 22. When the movable support 2 moves, the seat body 35 can drive the remaining parts in the drive motor 3 to move together.

[0067] The movable support 2 is provided with a second avoiding hole 21 corresponding to the first avoiding hole 116, which is radially aligned with the first avoiding hole 116 and extends from the top surface of the movable support 2 to the bottom. The seat body 35 is provided with a second extension 352 on the outer surface corresponding to the second avoiding hole 21, as shown in Figure 7 and Figure 8 The second extension 352 extends from the outer surface of the seat body 35 to the upper side of the first extension 24 through the second avoiding hole 21 and the first avoiding hole 116, and is provided with a connecting column.

[0068] The built-in circuit in the seat body 35 extends to the first extension 24 and is electrically connected with the circuit board 12, and the current can pass from the circuit board 12, the built-in circuit of the seat body 35, the lower spring sheet 34 to the second coil set, and the second coil set is energized. Specifically, the circuit board 12 is provided with a connecting piece 125, which is divided into two parts, the first part 1251 extends from the inner side of the first annular plate 121 to the inside and is overlapped on the top surface of the second extension 352, and is provided with a connecting hole which is sleeved on the connecting column of the second extension 352.

[0069] The second part 1252 of the connecting piece 125 is bent from the outer side of the first annular plate 121 and extends to the inside, passes through the first avoiding hole 116 and the second avoiding hole 21 from between the first extension 24 and the second extension 352 to the inside of the movable frame 11, and the second part 1252 is located on the bottom surface of the second extension 352, that is, the second extension 352 is located between the first part 1251 and the second part 1252, and can be electrically connected with any position of the connecting piece 125.

[0070] The second part 1252 is located on the top surface of the first extension 24, and passes through the first and second avoiding holes 116 and 21 into the inside of the movable holder 2 from the top surface of the first extension 24, and is electrically connected with the imaging chip located at the bottom of the movable holder 2. Specifically, the imaging chip is located below the driving motor 3, and the carrier 33 in the driving motor 3 needs to be aligned with the imaging chip as much as possible to better imaging. When the lens in the driving motor 3 is misaligned with the imaging chip, that is, when the lens shakes during shooting, the first magnet group 23 and the first coil group 127 can drive the driving motor 3 to move by adjusting the movable holder 2, so as to adjust the position of the driving motor 3, thereby aligning the driving motor 3 with the imaging chip.

[0071] The circuit board 12 is also provided with a control chip 126, which is located on the top surface of the first annular plate 121 and at one corner, that is, the control chip 126 and the three limiters 113 are respectively located at the four corners of the annular support plate 112. The control chip 126 is used to control the first coil group 127 and the second coil group. For example, the current direction or size of the four first coil groups 127 can be adjusted by the control chip 126. The four first coil groups 127 cooperate with the four first magnet groups 23 to drive the movable holder 2 to move, so as to adapt to the shooting requirements and prevent the lens from shaking. In an embodiment, when a single first coil group 127 is powered, the first coil group 127 can cooperate with the first magnet group 23 oppositely arranged to drive one side of the movable holder 2 to move upward or downward. Alternatively, opposite currents are input to two oppositely arranged first coil groups 127, and the two first coil groups 127 respectively cooperate with two first magnet groups 23 oppositely arranged to the two first coil groups 127 to drive one side of the movable holder 2 to move upward and the other side to move downward, thereby making a swinging motion. Alternatively, two adjacent first coil groups 127 are simultaneously input with currents, and the other two first coil groups 127 are input with opposite currents or are powered off, which can drive one corner of the movable holder 2 to move upward and the other corner opposite to the corner to move downward, thereby making different swinging motions of the movable holder 2. Through the cooperation of the four first coil groups 127 and the four first magnet groups 23, the movable holder 2 can swing at multiple angles according to requirements to prevent the lens from shaking. It should be understood that the number of the first coil group 127 and the first magnet group 23 is not limited, as long as the movable holder 2 can be driven to move and the anti-shake requirements can be met.

[0072] The reset member 5 includes four spring wires, which are respectively located at the four corners of the frame 11, and one end of each of the four spring wires is connected with the bottom of the frame 11, and the other end is connected with the four corners of the movable holder 2. After the movable holder 2 moves, the four spring wires can drive the movable holder 2 to reset.

[0073] The frame assembly 1 of the present application is stable in structure, which can ensure that the circuit board 12 is stably fixed to the inside of the lens driving mechanism 100, and ensure the stability of the circuit inside the lens driving mechanism 100.

[0074] The preferred embodiments of the present application have been described in detail above, but it should be understood that aspects of the embodiments can be modified to employ aspects, features and concepts of various patents, applications and publications, if necessary, to provide additional embodiments.

[0075] These and other changes can be made to the embodiments in light of the above Detailed Description. In general, in the appended claims, the terms used should not be construed to limit the claimed embodiments to the specific embodiments disclosed in the specification and claims, but should be construed to include all embodiments falling within the scope of the claims along with the full scope of equivalents to which such claims are entitled.

[0076] Those skilled in the art can understand that the above-mentioned embodiments are specific embodiments for realizing the present application, and in actual application, various changes can be made in form and details without departing from the spirit and scope of the present application.

Claims

1. A frame assembly, the frame assembly being used for a lens drive mechanism, the lens drive mechanism comprising a drive motor and a movable bracket, the drive motor being mounted in the movable bracket, the movable bracket being provided with a first magnet group, characterized in that: include: A framework, comprising: An annular side frame, wherein the annular side frame is annular and is provided with a first coil group, the movable bracket is installed in the annular side frame, and the first coil group and the first magnet group cooperate to drive the movable bracket to move; an annular support plate, the annular support plate being sleeved outside the annular side frame and located at the bottom of the annular side frame; a limiting member connected to the top surface of the annular support plate and spaced apart from the annular side frame; and A circuit board, comprising: a first annular plate, the first annular plate being annular and extending around the annular side frame and being superposed on a top surface of the annular support plate, the first annular plate being located radially inward of the limiting member; and a second annular plate, the second annular plate being located at the bottom of the annular support plate and being electrically connected to the first annular plate and the first coil assembly; a first side plate, the first side plate being connected to the first annular plate and the second annular plate by welding; A second side plate, wherein a bottom end of the second side plate is connected to the second annular plate.

2. The frame assembly according to claim 1, wherein: The first side plate is located between the first annular plate and the second annular plate.

3. The frame assembly according to claim 1, wherein: The annular support plate is provided with an avoidance groove, which extends from the bottom surface to the top surface of the annular support plate; the annular side frame is provided with a mounting groove, which is formed by the outer surface of the annular side frame being recessed inward, and the mounting groove is located above the avoidance groove and is connected to the avoidance groove; the top end passes through the avoidance groove and extends into the mounting groove; the first coil group is connected to the second side plate and is located in the mounting groove.

4. The frame assembly according to claim 3, wherein: The mounting slot includes: a first section, wherein the first section is formed by the outer surface of the annular side frame being recessed inward, and the first section is used to accommodate the second side plate; and The second section is formed by the inner surface of the first section being recessed toward the inner surface of the annular side frame, and is used to accommodate the first coil group.

5. The frame assembly according to claim 3, wherein: The annular support plate is a rectangular ring, and the four avoidance grooves are respectively located on the four side portions of the annular support plate; the annular side frame is a rectangular frame, and the four mounting grooves are respectively located on the four side portions of the annular side frame and are respectively connected to the four avoidance grooves; the four second side plates are respectively connected to the second annular plate, and respectively extend from the four avoidance grooves to the four mounting grooves; The four first coil groups are electrically connected to the four second side plates respectively and are located in the four installation slots respectively.

6. The frame assembly according to claim 5, wherein: The three limiting members are respectively located at three corners of the annular support plate.

7. The frame assembly according to claim 3, wherein: The annular side frame is provided with a first avoidance hole, and the first annular plate is provided with a connecting piece, and the connecting piece extends from the first avoidance hole to the interior of the movable bracket.

8. The frame assembly according to claim 7, wherein: The driving motor includes a housing and a carrier, wherein a second magnet group is provided in the housing, and the carrier is installed in the housing and provided with a second coil group, wherein the second coil group is electrically connected to the connecting member and cooperates with the second coil group to drive the carrier to move along the optical axis; The circuit board is provided with a control chip, and the control chip is used to control the first coil group and the second coil group.

9. The frame assembly according to claim 5, wherein: The bottom surface of the annular support plate is provided with an accommodating groove, which extends along the axial direction of the annular support plate and is respectively communicated with the four avoidance grooves, and the second annular plate is located in the accommodating groove.

10. A lens driving mechanism, characterized in that: include: base; The housing is connected to the top of the base and cooperates with the base to form a receiving space ； The frame assembly according to any one of claims 1 to 9, wherein the frame is installed in the accommodating space; A movable bracket, the movable bracket is annular and movably mounted in the annular side frame, the movable bracket is provided with a first magnet group, and the first magnet group cooperates with the first coil group to drive the movable bracket to move; a drive motor, the drive motor being located within the ring of the movable support; as well as A reset member is operable to drive the movable bracket to reset.

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