Camera module and electronic device

Abstract

The present disclosure provides a camera module and an electronic device, and belongs to the field of cameras. The camera module comprises a shell, a first lens, a second lens and a driving mechanism; the first lens is located in the lens hole of the shell, and the first end is located outside the shell and the second end is located inside the shell; the second lens is located inside the shell and at the second end of the first lens; the driving mechanism is located inside the shell and connected with the first lens to drive the first lens to move in the direction of the main optical axis of the first lens, and the driving mechanism is connected with the second lens to drive the second lens to move close to or away from the first lens. One lens is composed of two lenses. When shooting, the first lens and the second lens are moved by the driving mechanism to focus, the second lens is moved close to or away from the first lens to adjust the light path, so as to improve the clarity of the image at the four corners and improve the quality of the shot image.

Description

TECHNICAL FIELD

[0001] The present disclosure relates to the field of camera, and in particular, to a camera module and an electronic device. BACKGROUND

[0002] The camera module is an important structure of many electronic devices such as mobile phones and tablet computers, and can enable the electronic device to have a photographing function.

[0003] The camera module includes a lens and a voice coil motor. The voice coil motor includes a housing and a driving mechanism located inside the housing. The driving mechanism is connected to the lens to drive the lens to move, thereby realizing the auto-focusing of the camera module.

[0004] In the related art, the lens includes one lens. After the camera module is focused, the image taken in the near focus condition is relatively clear at the center position, but the clarity at the four corners of the image is poor, which is significantly lower than the clarity at the center position. SUMMARY

[0005] The present disclosure provides a camera module and an electronic device, which can improve the clarity at the four corners of the taken image and improve the image quality. The technical solution is as follows:

[0006] In one aspect, the present disclosure provides a camera module and an electronic device. The camera module includes a housing, a first lens, a second lens, and a driving mechanism.

[0007] The first lens is located in a lens hole of the housing, and a first end of the first lens is located outside the housing and a second end of the first lens is located inside the housing.

[0008] The second lens is located inside the housing and at the second end of the first lens.

[0009] The driving mechanism is located inside the housing and connected to the first lens to drive the first lens to move in the direction of the main optical axis of the first lens. The driving mechanism is connected to the second lens to drive the second lens to move closer to or away from the first lens.

[0010] In one possible implementation of the present disclosure, the driving mechanism includes a stator, a first mover, and a second mover.

[0011] The stator is located outside the first mover and connected to the housing.

[0012] The first mover is connected to the first lens and used to generate a magnetic action with the stator to drive the first lens to move.

[0013] The second mover is located in the first mover and connected with the second lens, and is used to generate magnetic action with the first mover to drive the second lens to move.

[0014] In a possible implementation manner of the embodiment of the present disclosure, the first mover comprises a magnetic assembly and a first frame, the magnetic assembly is located on the side wall of the first frame and connected with the first frame, and the magnetic assembly is arranged around the first frame.

[0015] The second mover comprises a first coil and a second frame, the first coil is located on the side wall of the second frame and arranged around the second frame.

[0016] In a possible implementation manner of the embodiment of the present disclosure, the magnetic assembly comprises two first magnetic pieces and two second magnetic pieces, the two first magnetic pieces are respectively arranged on the first side wall and the second side wall opposite to each other of the first frame, and the two first magnetic pieces have the same polarity on the opposite sides.

[0017] The two second magnetic pieces are respectively arranged on the third side wall and the fourth side wall opposite to each other of the first frame, and the two second magnetic pieces each comprise a first polarity area and a second polarity area on the side close to the main optical axis of the first lens, the first polarity area and the second polarity area are arranged along the extension direction of the main optical axis of the first lens, the first polarity area is close to the first lens, and the first polarity area and the second polarity area have opposite polarities.

[0018] In a possible implementation manner of the embodiment of the present disclosure, the first coil is opposite to the second polarity area, and the polarity of the second polarity area is the same as that of the opposite side of the two first magnetic pieces.

[0019] Optionally, one end of the first frame close to the lens hole has a first connecting groove, the side wall of the first lens has a first protrusion, the first protrusion is located in the first connecting groove and connected with the first frame.

[0020] In a possible implementation manner of the embodiment of the present disclosure, the outer side wall of the second frame has an annular groove, and the first coil is located in the annular groove.

[0021] In a possible implementation manner of the embodiment of the present disclosure, one end of the second frame close to the lens hole has a second connecting groove, the side wall of the second lens has a second protrusion, the second protrusion is located in the second connecting groove and connected with the second frame.

[0022] Optionally, the driving mechanism comprises a first elastic member, the first elastic member is located on a side of the first mover away from the lens hole, and the first elastic member is connected with the first mover, the second mover and the shell.

[0023] Optionally, the first elastic member comprises a first connecting portion, a first elastic portion, a second connecting portion, a second elastic portion and a third connecting portion, one end of the first elastic portion is connected with the first connecting portion, the other end of the first elastic portion is connected with the second connecting portion, one end of the second elastic portion is connected with the second connecting portion, and the other end of the second elastic portion is connected with the third connecting portion.

[0024] The first connecting portion is connected with the shell, the second connecting portion is connected with the first mover, and the third connecting portion is connected with the second mover.

[0025] Optionally, the first elastic member is electrically connected with the second mover.

[0026] Optionally, the driving mechanism comprises a second elastic member, the second elastic member is located on a side of the first mover close to the lens hole, and the second elastic member is connected with the first mover and the shell.

[0027] In another aspect, the present disclosure also provides an electronic device comprising any one of the camera modules as described in the preceding aspect.

[0028] The technical scheme provided by the present disclosure has at least the following beneficial effects:

[0029] By arranging the first lens and the second lens, the two lenses form a lens, and when photographing, the driving mechanism drives the first lens and the second lens to move for focusing, drives the second lens to move close to or away from the first lens, and adjusts the light path to improve the sharpness of the photographed image at the four corners and improve the quality of the photographed image. BRIEF DESCRIPTION OF DRAWINGS

[0030] In order to more clearly illustrate the technical scheme in the embodiments of the present disclosure, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present disclosure, and other drawings can be obtained by those skilled in the art without creative labor.

[0031] Figure 1 is a structural schematic diagram of a camera module provided by the present disclosure;

[0032] Figure 2 is Figure 1 the I-I sectional view in

[0033] Figure 3 is a structural schematic diagram of a shell provided by an embodiment of the present disclosure;

[0034] Figure 4 is an exploded structural schematic diagram of a driving mechanism provided by an embodiment of the present disclosure;

[0035] Figure 5 is a structural schematic diagram of a first mover provided by an embodiment of the present disclosure;

[0036] Figure 6 is a structural schematic diagram of a second mover provided by an embodiment of the present disclosure;

[0037] Figure 7 is a cooperation schematic diagram of a magnetic assembly and a stator provided by an embodiment of the present disclosure;

[0038] Figure 8 is a magnetic pole distribution schematic diagram of a first magnetic member and a second magnetic member provided by an embodiment of the present disclosure;

[0039] Figure 9 is a structural schematic diagram of a lens provided by an embodiment of the present disclosure;

[0040] Figure 10 is a structural schematic diagram of a first elastic member provided by an embodiment of the present disclosure;

[0041] Figure 11 is a structural schematic diagram of a second elastic member provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0042] In order to make the purpose, technical scheme and advantages of the present disclosure clearer, the embodiments of the present disclosure will be further described in detail below with reference to the drawings.

[0043] Unless otherwise defined, technical terms or scientific terms used herein shall have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terms "first", "second", "third", and the like, as used in the description and the claims of this disclosure do not denote any order, quantity, or importance, but are used to distinguish one element from another. Also, the terms "a" or "an", as used in the description and the claims of this disclosure do not denote a limitation of quantity but denote the presence of at least one. The terms "comprising", "including", and the like, as used in the description and the claims of this disclosure, mean that elements or objects preceding the "comprising" or "including" are included in the description of the elements or objects and equivalents thereof, and do not exclude other elements or objects. The terms "connected" or "coupled", as used in the description and the claims of this disclosure, are not limited to physical or mechanical connections or couplings, but can include electrical connections or couplings, whether direct or indirect. The terms "upper", "lower", "left", "right", and the like, are used only to indicate relative positions, and when the absolute positions of the described objects are changed, the relative positions may also be changed accordingly.

[0044] Figure 1 is a structural schematic diagram of a camera module provided by an embodiment of the disclosure. As shown in Figure 1 , the camera module includes a housing 10, a first lens 20, a second lens 30, and a driving mechanism 40.

[0045] Figure 2 is a sectional view of I-I in Figure 1 . As shown in Figure 2 , the first lens 20 is located in a lens hole 10a of the housing 10, and a first end 20a is located outside the housing 10 and a second end 20b is located inside the housing 10.

[0046] The second lens 30 is located inside the housing 10 and at the second end 20b of the first lens 20.

[0047] The driving mechanism 40 is located inside the housing 10 and connected to the first lens 20 to drive the first lens 20 to move in the extension direction of the main optical axis m of the first lens 20; the driving mechanism 40 is connected to the second lens 30 to drive the second lens 30 to move closer to or away from the first lens 20.

[0048] By setting the first lens and the second lens, a lens is formed by the two lenses, and when shooting, the first lens and the second lens are moved by the driving mechanism to focus, and the second lens is moved closer to or away from the first lens to adjust the light path, so as to improve the sharpness of the image at the four corners and improve the quality of the shot image.

[0049] Figure 3 is a structural schematic diagram of a housing provided by an embodiment of the disclosure. As shown in Figure 3As shown, as an example, the shell 10 includes a base 11, an upper cover 12, and a gasket 13 located in the upper cover 12 and attached to the side wall of the upper cover 12 with the lens hole 10a. The upper cover 12 is detachably connected to the base 11. The shell 10 provides a mounting base for the structure inside the shell 10. In the embodiment of the present disclosure, the shell 10 is used to mount the driving mechanism 40, and the structure of the shell 10 can be arranged according to the driving mechanism 40 so that the driving mechanism 40 can be mounted in place to realize the corresponding function.

[0050] In the embodiment of the present disclosure, the main optical axis m of the first lens 20 and the main optical axis of the second lens 30 coincide.

[0051] Figure 4 is a disassembly structure schematic diagram of a driving mechanism provided by an embodiment of the present disclosure. As shown in Figure 4 The driving mechanism 40 includes a stator 41, a first mover 42, and a second mover 43.

[0052] The stator 41 is located outside the first mover 42, and the stator 41 is connected to the shell 10. The first mover 42 is connected to the first lens 20. The first mover 42 is used to generate a magnetic action with the stator 41 to drive the first lens 20 to move. The second mover 43 is located in the first mover 42, and the second mover 43 is connected to the second lens 30. The second mover 43 is used to generate a magnetic action with the first mover 42 to drive the second lens 30 to move.

[0053] The first mover 42 generates a magnetic action with the stator 41, so that the first mover 42 can move relative to the stator 41 under the action of the magnetic force. The second mover 43 generates a magnetic action with the first mover 42, so that the second mover 43 can move relative to the first mover 42 under the action of the magnetic force. The movement of the first mover 42 and the second mover 43 is controlled by the magnetic force, and the size of the magnetic force can be adjusted by the current, which is convenient for the control of the camera module.

[0054] Figure 5 is a structure schematic diagram of a first mover provided by an embodiment of the present disclosure. As shown in Figure 5 The first mover 42 includes a magnetic component 421 and a first frame 422. The magnetic component 421 is located on the side wall of the first frame 422 and connected to the first frame 422, and the magnetic component 421 is arranged around the first frame 422.

[0055] The magnetic component 421 is connected to the first frame 422, and when generating a magnetic action with the stator 41, the first frame 422 is driven by the magnetic component 421 to move along the extension direction of the main optical axis m of the first lens 20.

[0056] Figure 6 is a structure schematic diagram of a second mover provided by an embodiment of the present disclosure. As shown in Figure 6As shown, the second mover 43 comprises a first coil 431 and a second frame 432. The first coil 431 is located on the side wall of the second frame 432, and the first coil 431 is arranged around the second frame 432.

[0057] When the first coil 431 is energized, a magnetic field is generated. The magnetic field of the first coil 431 interacts with the magnetic field of the magnetic assembly 421, so that the first coil 431 is subjected to a magnetic force, and the first coil 431 drives the second frame 432 to move relative to the first frame 422.

[0058] Figure 7 is a schematic diagram of the cooperation of a magnetic assembly and a stator provided by an embodiment of the present disclosure. As shown, Figure 7 The magnetic assembly 421 comprises at least two first magnetic members 4211 and at least two second magnetic members 4212. Figure 8 is a schematic diagram of the magnetic pole distribution of the first magnetic member and the second magnetic member provided by an embodiment of the present disclosure. As shown, Figure 8 One side of the first magnetic member 4211 is S-pole, and the other side is N-pole. One side of the second magnetic member 4212 is distributed with S-pole and N-pole, and the other side is distributed with N-pole and S-pole, and the S-pole on one side of the second magnetic member 4212 corresponds to the N-pole on the other side, and the N-pole corresponds to the S-pole on the other side.

[0059] The first magnetic member 4211 can be one of an electromagnet and a permanent magnet, and the second magnetic member 4212 can also be one of an electromagnet and a permanent magnet. In the embodiment of the present disclosure, the first magnetic member 4211 and the second magnetic member 4212 are taken as examples for description.

[0060] The two first magnetic members 4211 are respectively arranged on the first side wall 42a and the second side wall 42b opposite to each other of the first frame 422, and the two second magnetic members 4212 are respectively arranged on the third side wall 42c and the fourth side wall 42d opposite to each other of the first frame 422. In the embodiment of the present disclosure, the first frame 422 is rectangular, the two first magnetic members 4211 are located at one pair of opposite sides of the rectangle, and the two second magnetic members 4212 are located at the other pair of opposite sides of the rectangle, and the first magnetic member 4211 and the second magnetic member 4212 are orthogonally distributed.

[0061] The two first magnetic members 4211 have the same polarity on the opposite sides. For example, in the embodiment of the present disclosure, the N-poles of the two first magnetic members 4211 are opposite to each other.

[0062] The one side of the second magnetic member 4212 close to the main optical axis m of the first lens 20 includes a first polarity region 4212a and a second polarity region 4212b, the first polarity region 4212a and the second polarity region 4212b are arranged along the extension direction of the main optical axis m of the first lens 20, and the first polarity region 4212a is close to the first lens 20, and the polarities of the first polarity region 4212a and the second polarity region 4212b are opposite. For example Figure 7 In the embodiment, the first polarity region 4212a is S pole and the second polarity region 4212b is N pole on the one side of the second magnetic member 4212 close to the main optical axis m of the first lens 20. Correspondingly, on the one side of the second magnetic member 4212 away from the main optical axis m of the first lens 20, the region close to the first lens 20 is N pole and the region away from the first lens 20 is S pole.

[0063] The second magnetic member 4212 is a planar two-pole magnet. The first polarity regions 4212a of the two second magnetic members 4212 are opposite, and the second polarity regions 4212b of the two second magnetic members 4212 are opposite. Both the first magnetic member 4211 and the second magnetic member 4212 can interact with the stator 41 to drive the first frame 422 to move. In addition, the second magnetic member 4212 is used to interact with the second mover 43 to move the second mover 43 relative to the first mover 42.

[0064] As shown in Figure 7 , the first coil 431 is opposite to the second polarity region 4212b, and the polarity of the second polarity region 4212b is the same as the polarity of the one side of the two first magnetic members 4211 opposite to each other. For example, in the embodiment of the present disclosure, the two first magnetic members 4211 are opposite to each other on the side where the N poles are located, the polarity of the first polarity region 4212a is S pole, the polarity of the second polarity region 4212b is N pole, and the regions of the two second magnetic members 4212 opposite to the first coil 431 are N poles.

[0065] The first coil 431 is opposite to the second polarity region 4212b and is in the magnetic field of the second polarity region 4212b. When the first coil 431 is energized, the first coil 431 interacts with the magnetic field of the second polarity region 4212b and is subjected to the magnetic force.

[0066] Figure 9 is a structural schematic diagram of a lens provided by an embodiment of the present disclosure. As shown in Figure 9 , in the lens, the side wall of the first lens 20 has a plurality of first protrusions 21, the first protrusions 21 are close to the second end 20b of the first lens 20, and the first protrusions 21 are used to connect with the first mover 42. The side wall of the second lens 30 has a plurality of second protrusions 31, and the second protrusions 31 are used to connect with the second mover 43. The first protrusions 21 and the second protrusions 31 are staggered with each other in the circumferential direction of the first lens 20.

[0067] The second end 20b of the first lens 20 has a ring-shaped protrusion 22, and the ring-shaped protrusion 22 has a plurality of U-shaped notches 22a corresponding to a plurality of second protrusions 31 of the second lens 30, and the second protrusions 31 are located in the corresponding U-shaped notches 22a.

[0068] Referring to Figure 5 As shown, the first frame 422 has a first connecting groove 422a at one end close to the lens hole 10a. The first protrusion 21 is located in the first connecting groove 422a, and the first protrusion 21 is connected with the first frame 422.

[0069] The first connecting groove 422a can limit the first protrusion 21, and the plurality of first connecting grooves 422a and the plurality of first protrusions 21 form a cooperation to make the first lens 20 more stable. After the first protrusion 21 is connected with the first connecting groove 422a, the first frame 422 can move the first lens 20 when moving.

[0070] Exemplarily, the first protrusion 21 and the first connecting groove 422a can be clamped or bonded.

[0071] As shown, Figure 5 The first frame 422 has a mounting groove 422b on the side wall, which is used to mount the first magnetic member 4211 or the second magnetic member 4212. There are mounting grooves 422b on the four side walls of the first frame 422, and the magnetic field of the magnetic member can act on the first coil 431 and the stator 41 without passing through the side wall of the first frame 422.

[0072] Referring to Figure 6 As shown, the second frame 432 has a second connecting groove 432b at one end close to the lens hole 10a, and the side wall of the second lens 30 has a second protrusion 31, which is located in the second connecting groove 432b and connected with the second frame 432.

[0073] The second connecting groove 432b can limit the second protrusion 31, and the plurality of second connecting grooves 432b and the plurality of second protrusions 31 form a cooperation to make the second lens 30 more stable. After the second protrusion 31 is connected with the second connecting groove 432b, the second frame 432 can move the second lens 30 when moving.

[0074] As shown, Figure 6 The outer side wall of the second frame 432 has a ring-shaped groove 432a, and the first coil 431 is located in the ring-shaped groove 432a.

[0075] The annular groove 432a can limit the first coil 431, make the first coil 431 more stable in installation, and avoid the first coil 431 protruding from the side wall of the second frame 432, which is beneficial to reduce the volume of the camera module.

[0076] As shown in Figure 4 , the driving mechanism 40 includes a first elastic member 44. The first elastic member 44 is located on the side of the first mover 42 away from the lens hole 10a, and the first elastic member 44 is connected with the first mover 42, the second mover 43 and the shell 10.

[0077] The first elastic member 44 can provide elastic force to balance the magnetic force received by the first mover 42 and the second mover 43, so as to control the position of the first mover 42 and the second mover 43 relative to the stator 41. When the magnetic force decreases, the elastic force of the first elastic member 44 can reset the first mover 42 and the second mover 43.

[0078] Figure 10 is a structural schematic diagram of a first elastic member provided by an embodiment of the present disclosure. As shown in Figure 10 , the first elastic member 44 includes a first connecting portion 441, a first elastic portion 442, a second connecting portion 443, a second elastic portion 444 and a third connecting portion 445. The first connecting portion 441 is connected with one end of the first elastic portion 442, the other end of the first elastic portion 442 is connected with the second connecting portion 443, one end of the second elastic portion 444 is connected with the second connecting portion 443, and the other end of the second elastic portion 444 is connected with the third connecting portion 445. The first connecting portion 441 is connected with the shell 10, the second connecting portion 443 is connected with the first mover 42, and the third connecting portion 445 is connected with the second mover 43.

[0079] In the embodiment of the present disclosure, the first connecting portion 441, the second connecting portion 443 and the third connecting portion 445 all have connecting holes 44a. The inner wall of the shell 10, the end of the first frame 422 and the end of the second frame 432 all have protruding structures, for example Figure 5 the first protruding block 4221 in Figure 6 and the second protruding block 4321 in , the connecting hole 44a of the first connecting portion 441 is sleeved outside the protruding structure of the inner wall of the shell 10, the connecting hole 44a of the second connecting portion 443 is sleeved outside the first protruding block 4221 of the end of the first frame 422, and the connecting hole 44a of the third connecting portion 445 is sleeved outside the second protruding block 4321 of the end of the second frame 432.

[0080]

[0080] In the process of moving the first mover 42, the first elastic part 442 is deformed. The second elastic part 444 elastically connects the second mover 43 with the first mover 42. If the first coil 431 is not powered in the process of moving the first mover 42, the second mover 43 can move with the first mover 42 under the driving of the second elastic part 444. In the process of powering the first coil 431 and moving the second mover 43 driven by the first coil 431, the second elastic part 444 is deformed.

[0081] As shown in Figure 10 , the driving mechanism 40 includes two first elastic members 44, which can be arranged symmetrically about the central axis m of the first lens 20. The two first elastic members 44 can make the movement of the first mover 42 and the second mover 43 more stable.

[0082] Optionally, the first elastic member 44 is electrically connected with the second mover 43.

[0083] The second mover 43 will move relative to the first mover 42 only after the first coil 431 of the second mover 43 is powered. The first elastic member 44 is electrically connected with the second mover 43, that is, the first elastic member 44 is connected with the first coil 431, so that the first elastic member 44 can supply power to the first coil 431. Exemplarily, the two first elastic members 44 are connected with the two ends of the first coil 431 one by one.

[0084] The position corresponding to the first connecting part 441 in the shell 10 can be provided with a wiring terminal, one end of the wiring terminal is located in the shell 10 and connected with the first elastic member 44, and the other end is located outside the shell 10, so as to facilitate the connection of the power supply circuit.

[0085] As shown in Figure 4 , the driving mechanism 40 includes a second elastic member 45. The second elastic member 45 is located on the side of the first mover 42 close to the lens hole 10a, and the second elastic member 45 is connected with the first mover 42 and the shell 10.

[0086] The second elastic member 45 has the same effect on the first mover 42 as the first elastic member 44, and under the joint action of the first elastic member 44 and the second elastic member 45, the movement of the first mover 42 can be more rapid and stable.

[0087] Figure 11 is a structural schematic view of a second elastic member provided by an embodiment of the present disclosure. As shown in Figure 11 , the second elastic member 45 includes a fourth connecting part 451, a third elastic part 452, and a fifth connecting part 453. The fourth connecting part 451 is connected with the shell 10, and the fifth connecting part 453 is connected with the first mover 42.

[0088] As an example, in the embodiments of the present disclosure, the structure of the second elastic member 45 is the same as that of the first elastic member 44. In other examples, the structure of the second elastic member 45 can also be different from that of the first elastic member 44. The second elastic member 45 can be connected to the shell 10 and the first mover 42 in the same structure.

[0089] As shown in Figure 7 The stator 41 includes two second coils 411. The two second coils 411 are located on the opposite sides of the first mover 42, and the second coils 411 are opposite to the first magnetic members 4211, so that after being energized, the second coils 411 generate a magnetic action with the first magnetic members 4211, and the first mover 42 moves along the main optical axis m of the first lens 20.

[0090] The second coils 411 can be connected to a flexible circuit board 413, and the flexible circuit board 413 is connected to the inner wall of the shell 10. The flexible circuit board 413 partially extends out of the shell 10, so as to facilitate the connection of a power supply circuit to supply power to the second coils 411.

[0091] As shown in Figure 7 The stator 41 includes four third coils 412, and the third coils 412 are located on the side of the first mover 42 away from the lens hole 10a. The four third coils 412 are opposite to the four magnetic members, which are two first magnetic members 4211 and two second magnetic members 4212. After the third coils 412 are energized, the third coils 412 generate a magnetic action with the first magnetic members 4211 and the second magnetic members 4212, so that the first mover 42 is subjected to a magnetic force perpendicular to the main optical axis m of the first lens 20. The first mover 42 moves in the direction perpendicular to the main optical axis m of the first lens 20 under the magnetic force, as well as the elastic force of the first elastic member 44 and the second elastic member 45. At the same time, the first mover 42 moves together with the second mover 42 through the second elastic part 444. In the process of the first mover 42 and the second mover 43 moving in the direction perpendicular to the main optical axis m of the first lens 20, the first lens 20 and the second lens 30 also move in the direction perpendicular to the main optical axis m of the first lens 20. By controlling the current in the four third coils 412, the lens can be moved in any direction in the plane perpendicular to the main optical axis m of the first lens 20, so as to realize optical image stabilization.

[0092] The third coils 412 are connected to a printed circuit board 414. The printed circuit board 414 is located on the side of the first mover 42 away from the lens hole 10a, and the printed circuit board 414 is connected to the shell 10. The shell 10 can be provided with a terminal connected to the printed circuit board 414, and the terminal partially extends out of the shell 10, so as to facilitate the connection of a power supply circuit to supply power to the third coils 412.

[0093] The working process of the camera module provided by the embodiments of the present disclosure will be described briefly as follows:

[0094] The second coil 411 is energized, the second coil 411 and the first magnetic element 4211 and the second magnetic element 4212 generate magnetic action, the first magnetic element 4211 and the second magnetic element 4212 are affected by the magnetic force, the first mover 42 moves in the extension direction of the main optical axis m of the first lens 20, and the first mover 42 is driven to move together by the second elastic part 444, so as to adjust the position of the lens along the main optical axis m of the first lens 20, and realize automatic focusing.

[0095] The first coil 431 is energized, the first coil 431 and the second magnetic element 4212 generate magnetic action, the first coil 431 is affected by the magnetic force, the second mover 43 moves in the extension direction of the main optical axis m of the first lens 20, the second lens 30 is close to or away from the first lens 20, the light path is adjusted, the sharpness of the captured image at the four corners is improved, and the quality of the captured image is improved.

[0096] The third coil 412 is energized, the third coil 412 and the first magnetic element 4211 and the second magnetic element 4212 generate magnetic action, the first magnetic element 4211 and the second magnetic element 4212 are affected by the magnetic force, the first mover 42 moves in the direction perpendicular to the main optical axis m of the first lens 20, and the first mover 42 is driven to move together by the second elastic part 444, so as to adjust the position of the lens in the plane perpendicular to the main optical axis m of the first lens 20, and realize optical anti-shake.

[0097] The above only describes the working process of the first coil 431, the second coil 411 and the third coil 412, and in actual use, two or three of the first coil 431, the second coil 411 and the third coil 412 can be controlled to work at the same time.

[0098] The electronic device provided by the embodiment of the present disclosure can also be a camera module as shown in the figure. The electronic device can be, but is not limited to, a mobile phone, a tablet computer, a driving recorder, a digital camera. Figures 1-11

[0099] In the camera module, the first lens and the second lens are arranged, and a lens is composed of two lenses. When shooting, the first lens and the second lens are driven to move for focusing, the second lens is driven to move close to or away from the first lens, the light path is adjusted, the sharpness of the captured image at the four corners is improved, and the quality of the captured image is improved.

[0100] The above only describes the optional embodiments of the present disclosure, and does not limit the present disclosure. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present disclosure shall be included in the protection scope of the present disclosure.​

Claims

1. A camera module, comprising: It includes a housing (10), a first lens (20), a second lens (30), and a drive mechanism (40); The first lens (20) is located in the lens hole (10a) of the housing (10), with the first end (20a) located outside the housing (10) and the second end (20b) located inside the housing (10); The second lens (30) is located inside the housing (10) and at the second end (20b) of the first lens (20). The drive mechanism (40) is located inside the housing (10), and the drive mechanism (40) includes a stator (41), a first mover (42), and a second mover (43). The stator (41) is located outside the first mover (42) and is connected to the housing (10); The first moving part (42) is connected to the first lens (20) and is used to generate a magnetic interaction with the stator (41) to drive the first lens (20) to move; The second mover (43) is located in the first mover (42) and is connected to the second lens (30), and is used to generate a magnetic interaction with the first mover (42) to drive the second lens (30) to move; The principal optical axis of the first lens (20) coincides with the principal optical axis of the second lens (30).

2. The camera module of claim 1, wherein, The first mover (42) includes a magnetic component (421) and a first frame (422). The magnetic component (421) is located on the side wall of the first frame (422) and connected to the first frame (422). The magnetic component (421) is arranged around the first frame (422). The second mover (43) includes a first coil (431) and a second frame (432), wherein the first coil (431) is located on the side wall of the second frame (432) and is arranged around the second frame (432).

3. The camera module of claim 2, wherein, The magnetic component (421) includes two first magnetic elements (4211) and two second magnetic elements (4212). The two first magnetic elements (4211) are respectively disposed on the first sidewall (42a) and the second sidewall (42b) opposite to the first frame (422), and the sides of the two first magnetic elements (4211) with the same polarity face each other. Two second magnetic elements (4212) are respectively disposed on the third sidewall (42c) and the fourth sidewall (42d) opposite to the first frame (422). The side of each second magnetic element (4212) near the principal optical axis (m) of the first lens (20) includes a first polar region (4212a) and a second polar region (4212b). The first polar region (4212a) and the second polar region (4212b) are arranged along the extension direction of the principal optical axis (m) of the first lens (20), and the first polar region (4212a) is close to the first lens (20). The polarities of the first polar region (4212a) and the second polar region (4212b) are opposite.

4. The camera module of claim 3, wherein, The first coil (431) is opposite to the second polarity area (4212b), and the polarity of the second polarity area (4212b) is the same as the polarity of the side of the two first magnetic members (4211) opposite to each other.

5. The camera module of claim 2, wherein, The first frame (422) has a first connecting groove (422a) at one end close to the lens hole (10a), and the sidewall of the first lens (20) has a first protrusion (21) located in the first connecting groove (422a) and connected with the first frame (422).

6. The camera module of claim 2, wherein, The outer sidewall of the second frame (432) has an annular groove (432a), and the first coil (431) is located in the annular groove (432a).

7. The camera module of claim 2, wherein, The second frame (432) has a second connecting groove (432b) at one end close to the lens hole (10a), and the sidewall of the second lens (30) has a second protrusion (31) located in the second connecting groove (432b) and connected with the second frame (432).

8. The camera module of any one of claims 1-7, wherein, The driving mechanism (40) comprises a first elastic member (44) located at the side of the first mover (42) away from the lens hole (10a), and the first elastic member (44) is connected with the first mover (42), the second mover (43) and the shell (10).

9. The camera module of claim 8, wherein, The first elastic member (44) comprises a first connecting portion (441), a first elastic portion (442), a second connecting portion (443), a second elastic portion (444) and a third connecting portion (445), the first connecting portion (441) is connected with one end of the first elastic portion (442), the other end of the first elastic portion (442) is connected with the second connecting portion (443), one end of the second elastic portion (444) is connected with the second connecting portion (443), and the other end of the second elastic portion (444) is connected with the third connecting portion (445). The first connecting portion (441) is connected with the shell (10), the second connecting portion (443) is connected with the first mover (42), and the third connecting portion (445) is connected with the second mover (43).

10. The camera module of claim 8, wherein, The first elastic member (44) is electrically connected with the second mover (43).

11. The camera module of any one of claims 1-7, wherein, The driving mechanism (40) comprises a second elastic member (45) located at the side of the first mover (42) close to the lens hole (10a), and the second elastic member (45) is connected with the first mover (42) and the shell (10).

12. An electronic device, comprising: The camera module comprises the camera module according to any one of claims 1-11.

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