CN213817388U

CN213817388U - Camera module and digital equipment thereof

Info

Publication number: CN213817388U
Application number: CN202022018743.5U
Authority: CN
Inventors: 罗俊; 赵立新; 许勇
Original assignee: Geke Microelectronics Shanghai Co Ltd
Current assignee: Geke Microelectronics Shanghai Co Ltd; Galaxycore Shanghai Ltd Corp
Priority date: 2020-09-15
Filing date: 2020-09-15
Publication date: 2021-07-27
Anticipated expiration: 2030-09-15

Abstract

The utility model provides a camera module and digital equipment thereof, the camera module includes: a mobile unit, a base and at least one locking structure; the mobile unit comprises a lens module and is suitable for driving the lens module to move along the direction of an optical axis; the base is suitable for bearing the mobile unit; the locking structure comprises a shape memory alloy part and a locking part, and the shape memory alloy part is suitable for driving the locking part to move so as to lock or release the mobile unit. The utility model provides a camera module and digital equipment thereof have solved the locking problem of long stroke camera module when out of work.

Description

Camera module and digital equipment thereof

Technical Field

The utility model relates to an imaging module technical field that makes a video recording especially relates to a camera module and digital equipment thereof.

Background

With the rapid development of the smart phone industry, the requirements of people on the imaging effect of a mobile phone Camera are gradually increased, and compared with the traditional Camera system, a mobile phone Camera Module (CCM) is widely applied to various new-generation portable Camera devices due to the advantages of miniaturization, low power consumption, low cost, high image quality and the like.

At present, the structure of the camera module includes a lens unit, a Voice Coil Motor (VCM), an infrared cut-off filter, an image sensor, a Flexible Printed Circuit Board (FPC) or a Printed Circuit Board (PCB), and a connector connected to a main Board of the mobile phone.

Among them, the voice coil motor is used to realize an auto-focusing function of the lens unit, and the voice coil motor generally includes a magnet, a coil, and the like as an actuator for driving the lens unit. In the working process of the camera module, current is firstly supplied to the coil, a magnetic field is generated after the coil is supplied with the current, the magnetic field generated in the coil and the magnetic field generated by the magnet interact to generate electromagnetic force, and the coil or the magnet moves under the action of the electromagnetic force, so that the lens unit connected with the voice coil motor is driven to move, the image distance and the object distance of the camera module are adjusted, and clear images are presented.

Usually, a Hall Sensor (Hall-effect Sensor) may be further disposed in the voice coil motor, and the Hall Sensor is utilized to measure the change of the magnetic field in the voice coil motor, and the position of the coil or the magnet is determined according to the change of the magnetic field, thereby implementing the closed-loop control of the voice coil motor.

However, in the conventional technology, the range of focal length zooming is continuously increased, so that the stroke of the voice coil motor is also continuously increased, the thickness and the size of the mobile phone are limited, the lens part of the camera module can move outwards to protrude out of the shell of the mobile phone, and no locking mechanism can protect a moving part when the module does not work at present.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a camera module and digital equipment thereof solves the locking problem when long stroke camera module is out of work among the prior art.

In order to solve the technical problem, the utility model provides a camera module, include:

a mobile unit, a base and at least one locking structure;

the mobile unit comprises a lens module and is suitable for driving the lens module to move along the direction of an optical axis;

the base is suitable for bearing the mobile unit;

the locking structure comprises a shape memory alloy part and a locking part, and the shape memory alloy part is suitable for driving the locking part to move so as to lock or release the mobile unit.

Preferably, the locking part further includes:

a rotating arm, a connecting part and a springback part;

the two sides of the rotating arm are respectively connected with the shape memory alloy part and the connecting part, a spring bolt is arranged on the connecting part, and the spring bolt is positioned on the upper surface of the moving unit to clamp the moving unit;

one side of the connecting part, which is far away from the rotating arm, is connected with the springback part.

Preferably, the method comprises the following steps:

when the shape memory alloy part is electrified, the shape memory alloy part contracts, the rotating arm is suitable for rotating along with the contraction of the shape memory alloy part and driving the connecting part to move, so that the bolt releases the moving unit;

after the shape memory alloy part is powered off, the shape memory alloy part stretches, and the connecting part is suitable for moving under the driving of the resilience force of the resilience part to drive the lock tongue to return so as to clamp the moving unit.

Preferably, the lock tongue is a transverse blocking piece or at least two vertical blocking pieces which are arranged in parallel and are positioned on the upper surface of the mobile unit.

Preferably, the rotation axis of the rotation arm is perpendicular to the contraction direction of the shape memory alloy part, and the resilience of the rebound part is parallel to the contraction direction of the shape memory alloy part.

Preferably, the rotating arm and the base are respectively provided with a hole corresponding to each other, and a rotating shaft pin passes through the holes of the rotating arm and the base to be rotatably connected.

Preferably, corner magnets are further arranged at four corners of the moving unit, and the corner magnets are further suitable for pressing the rotating shaft pins so as to prevent the rotating shaft pins from falling off.

Preferably, the locking part further comprises a fixing part, and the fixing part is fixedly arranged on one side of the mobile unit on the base.

Preferably, the locking structure further comprises a mounting plate positioned at one side of the base, the mounting plate being positioned at one side of the moving unit and being perpendicular to the bottom of the base; the fixing part is attached to the mounting plate.

Preferably, the method comprises the following steps:

the rotating arm, the connecting part and the springback part are respectively an even number of pieces, and the fixing part is taken as an axis, and the two sides of the fixing part are symmetrically arranged.

Preferably, the method comprises the following steps:

the mounting plate is provided with a first baffle, a second baffle and a hollow window part;

the fixing part is fixedly attached to the first baffle plate of the mounting plate, the connecting part is opposite to the second baffle plate, and the first baffle plate and the second baffle plate are positioned on different planes;

the elastic part is pre-stretched in a hollow window between the first baffle and the second baffle.

Preferably, the method comprises the following steps: the fixing part is attached and fixed with the first baffle of the mounting plate through riveting, pasting or fixing block assembling.

Preferably, the shape memory alloy portion includes:

the shape memory alloy wire is arranged on the bottom surface of the base in a pre-stretching mode and is positioned below two sides of the moving unit;

one end of the shape memory alloy wire is arranged in a bending part arranged on the rotating arm, the other end of the shape memory alloy wire is electrically connected with an electrical terminal on the bottom surface of the base, and the electrical terminal comprises a clamping part.

Preferably, the camera module further includes a closed-loop control system, the closed-loop control system is disposed on the base and located on the other side of the mobile unit, and the closed-loop control system includes: and the feedback system of the Hall IC and the magnet is suitable for monitoring and feeding back the movement of the lens unit to ensure the position control of the movement of the lens, thereby realizing quick focusing.

Preferably, the magnets are arranged at four corners of the moving unit and are corner magnets, and the corner magnets are further suitable for limiting the locking structure and the moving unit.

Preferably, the mobile unit further comprises a coil assembly;

be provided with on the base and include: iron-clad subassembly, conducting strip and metal ball, the base still includes: the supporting component comprises a first clamping position and a second clamping position, the conducting strip is installed on the first clamping position, the metal ball is installed in the second clamping position, one side of the metal ball is tangent to the conducting strip, and the other opposite side of the metal ball is in contact with the coil component; when the mobile unit moves, the coil assembly is electrically connected with the focusing control chip through the metal ball and the conducting strip.

Preferably, the moving unit includes a bearing member, which is located in an iron case assembly, is adapted to accommodate a lens unit of the camera module, and moves up and down in an optical axis direction inside the iron case assembly.

Preferably, the coil assembly comprises a coil body and a carrier-embedded conductive block; the coil body is a wire winding coil and comprises a positive electrode end and a negative electrode end; the carrier embedded conductive block comprises a positive carrier embedded conductive block and a negative carrier embedded conductive block; and one end of the anode of the coil body is welded on the anode carrier embedded conductive block, and one end of the cathode of the coil body is welded and connected with the cathode carrier embedded conductive block.

Preferably, the carrier-embedded conductive block has two planes, each plane being parallel to the optical axis direction and being tangent to the metal ball.

Preferably, a welding portion of one end of the positive electrode of the coil body and the positive electrode carrier embedded conductive block is on the bearing member, and a welding portion of one end of the negative electrode of the coil body and the negative electrode carrier embedded conductive block is on the bearing member.

Preferably, the coil body is electrically connected with the focusing control chip through the carrier embedded conductive block, the metal ball and the conductive sheet.

Preferably, the coil body is disposed on an outer ring of the support assembly, the positive carrier embedded conductive block and the negative carrier embedded conductive block are embedded in the bearing member, and the conductive sheet is exposed opposite to the base support assembly to contact with the metal ball.

Preferably, the support assembly comprises:

the columnar structure is positioned on the base and is parallel to the direction of the optical axis;

the first clamping position is positioned outside the columnar structure and is suitable for accommodating a partial area of the conducting strip, so that the plane where the first clamping position is positioned is parallel to the direction of the optical axis;

the second clamping position is a through hole which is perpendicular to the plane of the conducting strip and is suitable for accommodating the metal ball and enabling the metal ball to contact the conducting strip and the coil assembly.

Preferably, the base further comprises: and the conductive wire buried layer is embedded into the base, one end of the conductive wire buried layer is connected with the conductive sheet, and the other end of the conductive wire buried layer is connected with a focusing control chip of the camera module through a PCB circuit.

Preferably, the conductive wire buried layer comprises a positive electrode buried layer and a negative electrode buried layer, the positive electrode buried layer and the positive electrode carrier embedded conductive block are electrically communicated with the same conductive sheet, and the negative electrode buried layer and the negative electrode carrier embedded conductive block are electrically communicated with the same conductive sheet.

Preferably, the conducting strip comprises a first connecting portion and a second connecting portion, the conducting wire buried layer is connected with the first connecting portion in a welding mode, and the second connecting portion is inserted into the first clamping portion and is in contact with the metal ball.

Preferably, the conductive sheet is: the first conducting strip or the second conducting strip comprises a sub elastic component, and the sub elastic component is suitable for contacting with the metal ball to generate elastic deformation so as to apply extrusion force to the metal ball.

Preferably, the conductive sheet corresponding to the positive electrode carrier embedded conductive block or the negative electrode carrier embedded conductive block at least includes one second conductive sheet, and the second conductive sheets corresponding to the positive electrode carrier embedded conductive block and the negative electrode carrier embedded conductive block are located on the same side of the base.

Preferably, the supporting component still includes the third screens, the base still includes the iron clad subassembly, the iron clad subassembly includes:

the outer wall and the buckle part are connected with the outer wall;

the outer wall is disposed corresponding to a periphery of the base and adapted to receive the mobile unit therein;

the buckle part is suitable for corresponding to the support component and is arranged on the third clamping position, so that the support strength of the support component can be enhanced.

Preferably, the camera module further comprises a mirror ring, and the mirror ring is fixedly arranged on the top end of the iron shell component.

Preferably, the base further comprises:

a dust-proof film and a support film structure;

the supporting film structure is positioned between the iron shell component and the mirror ring and is fixedly connected with the iron shell component;

the dustproof film is connected with the upper part of the lens and the film supporting structure so as to isolate the inside and the outside of the camera module.

Preferably, the ring comprises a bearing portion and an elastic member, the elastic member is disposed in the bearing, and the elastic member has an elastic force perpendicular to the optical axis direction with respect to the moving member, so as to be adapted to keep the moving direction of the lens in accordance with the optical axis direction during the movement of the lens.

Preferably, the elastic component comprises an elastic split ring, the bearing part comprises an inner ring wall, an outer ring wall and an annular convex strip positioned between the inner ring wall and the outer ring wall, a glue dispensing groove is arranged on the annular convex strip, the elastic split ring is arranged between the outer ring wall and the annular convex strip, and the glue dispensing groove is suitable for containing glue to glue the ring body of the elastic split ring and keep the elastic movement of the open end of the elastic split ring.

Preferably, the annular convex strip is further provided with a rolling groove suitable for placing a ball, and the rolling groove comprises: the glue dispensing groove is positioned between the first rolling groove and the second rolling groove or between the two second rolling grooves, and the glue dispensing groove is suitable for setting glue to stick the elastic split ring.

Preferably, the first rolling groove and the second conducting strip are arranged in a vertical direction correspondingly.

Preferably, the metal balls are steel balls.

Preferably, the surface of the metal ball is plated with gold or silver.

Preferably, the surface of the metal ball is further coated with grease.

Preferably, the conductive sheet corresponds to at least one metal ball.

Preferably, the ball is a steel ball or a ceramic ball.

The utility model also provides a digital device, include:

a main body of the body;

the camera module is arranged in the main body, and when the camera module is focused, the surface of the lens unit of the camera module, which extends out of the main body, is larger than or equal to 800 micrometers.

Compared with the prior art, the utility model discloses a camera module and digital device thereof that provide has following beneficial effect:

the technical scheme of the embodiment of the utility model in, utilize the principle that shape memory alloy silk has different lengths under the circumstances of circular telegram and non-circular telegram, combine the resilience force that prestretches the production of resilience portion, come the position of control tape lock tongue to realize the locking function of long-range VCM.

Furthermore, because shape memory alloy silk possesses fine posture to and along length direction's shrink, cooperation locking part laminating the flattening design of mobile unit one side, small, the limited residual space of fine integration VCM, convenient nimble locking function that has realized the long-range VCM.

Further, the technical scheme of the utility model in the embodiment that provides, closed loop control system and locking structure symmetry set up, keep the weight distribution balance of module. And displacement monitoring and feedback of the lens unit are performed by a feedback system of the hall IC and the magnet.

Further, the embodiment of the utility model provides an in the camera module that provides provide electrically conductive path through the structure and the position setting of carrier embedding conducting block, metal ball, conducting strip, conductor wire buried layer, can guarantee bearing component can last and stable provide the electric current for the coil when along the optical axis direction, and can not be right bearing component's motion brings the hindrance.

Furthermore, the carrier is embedded into the conductive block, the metal ball and the conductive sheet, so that the carrier, the metal ball and the conductive sheet can be kept in contact in a long movement stroke, and the bearing assembly can obtain continuous and stable current in a long enough movement stroke.

Furthermore, through the arrangement of the bullet-shaped part of the second conducting strip and the elastic part of the mirror ring, when the bottom of the mobile unit is stressed towards one side, the bullet-shaped part of the second conducting strip and the elastic part of the mirror ring return to the original positions by resilience force, so that the movement direction of the lens unit is consistent with the optical axis direction.

Drawings

Fig. 1 to fig. 20 are schematic structural views of a camera module according to an embodiment of the present invention.

Detailed Description

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention can be implemented in many different ways than those herein described and one skilled in the art can do so without departing from the spirit and scope of the present invention, which is not limited to the specific implementations disclosed below.

Secondly, the present invention is described in detail by using schematic diagrams, and when the embodiments of the present invention are described in detail, for convenience of illustration, the schematic diagrams are only examples, and the present invention should not be limited herein.

In order to make the above objects, features and advantages of the present invention more obvious and understandable, the camera module of the present invention is described in detail below with reference to the accompanying drawings.

The technical scheme of the utility model the camera module that provides includes: the mirror ring comprises a mirror ring bearing part, a moving component part, a stator part, a closed-loop control part and a locking part. The mirror ring bearing part is used for ensuring the stable movement of a lens and preventing water and dust; the moving component part is used for driving the lens to move for focusing; the stator part is used for ensuring position limitation and ensuring driving force; the closed-loop control part is used for ensuring the position control of the lens movement to realize quick focusing, and the locking part is used for limiting the locking of the lens when the lens does not need to work.

In particular, the following detailed description is given with reference to the accompanying drawings and specific examples.

Example one

As shown in fig. 1 to 4, the present embodiment provides a camera module, including:

a mobile unit 200, a base 100 and at least one locking structure 700;

the mobile unit 200 includes a lens module 600, and the mobile unit 200 is adapted to drive the lens module 600 to move along an optical axis direction;

the base 100 is adapted to carry the mobile unit 200;

the locking structure 700 includes a shape memory alloy portion 710 and a locking portion 720, and the shape memory alloy portion 710 is adapted to drive the locking portion 720 to move so as to lock or unlock the mobile unit 200.

Specifically, referring to fig. 2, in this embodiment, the locking portion 720 further includes:

the pivot arm 74, the connecting portion 76, and the spring-back portion 75;

the two sides of the rotating arm 74 are respectively connected with the shape memory alloy part 710 and the connecting part 76, a latch bolt 77 is arranged on the connecting part 76, and the latch bolt 77 is positioned on the upper surface of the mobile unit 200 to lock the mobile unit 200.

In this embodiment, the method includes:

when the shape memory alloy part 710 is powered on, the shape memory alloy part 710 contracts, the rotating arm 74 is suitable for rotating along with the contraction of the shape memory alloy part 710 and drives the connecting part 76 to move, so that the bolt 77 releases the mobile unit 200;

after the shape memory alloy part 710 is powered off, the shape memory alloy part 710 is extended, and the connecting part 76 is suitable for moving under the resilience of the resilience part 75, so as to drive the latch tongue 77 to return to lock the mobile unit 200.

In the present embodiment, as shown in fig. 1 and 2, the rotation arm 74 and the connecting portion 76 are perpendicular to each other. The rotating arm 74 and the base 100 are respectively provided with corresponding holes, and are rotatably connected through a rotating shaft pin 72.

In this embodiment, the rotation axis of the rotation arm 74 is perpendicular to the contraction direction of the shape memory alloy part 710, and the repulsive force of the spring back part 75 is parallel to the contraction direction of the shape memory alloy part 710.

With continued reference to fig. 3 and 4, in the present embodiment, the locking structure 700 further includes a first mounting plate 110 positioned on one side of the base 100, and the first mounting plate 110 is positioned on one side of the mobile unit 200 and is perpendicular to the bottom of the base 100.

In this embodiment, the method includes:

the locking part 720 further comprises a fixing part 78, wherein the fixing part 78 is fixedly arranged on one side of the base 100 of the mobile unit 200; the fixing portion 78 is attached to the first mounting plate 110.

In this embodiment, the rotation arm 74, the connection portion 76 and the resilient portion 75 are respectively provided in an even number, and are symmetrically disposed on both sides of the fixing portion 78 with the fixing portion 78 as an axis.

Specifically, in the present embodiment, the rotation arm 74, the connection portion 76 and the resilient portion 75 are two pieces, and the fixing portion 78 is an axis, and both sides of the fixing portion 78 are symmetrically disposed. And are located on one side of the mobile unit 200.

The mounting plate 110 is provided with a first baffle plate 11, a second baffle plate 12 and a hollow window part 13;

the fixing portion 78 is attached and fixed to the first baffle 11 of the mounting plate 110, the connecting portion 76 is opposite to the second baffle 12, and the first baffle 11 and the second baffle 12 are located on different planes;

the spring back portion 75 is pretensioned in the hollow window portion 13 between the first shutter 11 and the second shutter 12.

In the present embodiment, the resilient portion 75 is at least one elastic wire, and preferably, the resilient portion 75 is one or two elastic wires. The elastic wire is connected at one side to the fixing portion 78 and at the other side to the connecting portion 76. In this embodiment, the resilient portions 75 are two bending elastic wires arranged in an up-down symmetrical manner, and the symmetrical design can make the connecting portion 76 uniformly stressed up and down, and ensure the vertical rotation.

The rebound part 75 is suspended in the hollow window part 13 between the first baffle 11 and the second baffle 12, and the rebound part 75 is somewhat stretched due to the fact that the first baffle 11 and the second baffle 12 are not located on the same plane, so that the pretension force is provided, the connecting part 76 is fully attached to the second baffle 12 after the shape memory alloy wire is powered off, and the locking effect is guaranteed.

In this embodiment, the method includes: the fixing portion 78 is attached and fixed to the first baffle 11 of the mounting plate 110 by riveting, adhering, or fixing block assembling.

In this embodiment, the shape memory alloy portion 710 includes:

a shape memory alloy wire pre-stretched on the bottom surface of the base 110 and positioned below both sides of the moving unit 200;

one end of the shape memory alloy wire is disposed in the bending portion 73 disposed on the rotating arm 74, and the other end of the shape memory alloy wire is electrically connected to the electrical terminal 71 on the bottom surface of the base 110. The electrical terminals 71 comprise a clamping portion to clamp the ends of the shape memory alloy wires.

When the shape memory alloy wire is electrified, the shape memory alloy wire contracts, the rotating arm 74 is pulled to rotate through the rotating shaft pin 72, one end connected with the shape memory alloy wire rotates towards the contracting direction of the shape memory alloy wire, and the connecting part 76 and the rotating arm 74 positioned on the other side of the rotating shaft pin 72 rotate in the direction opposite to the direction of the shape memory alloy wire, so that the locking bolt 77 is driven to be far away from the upper part of the moving unit 200, and the limiting effect of releasing the moving unit is realized.

At this time, since the spring back portion 75 is in a further stretched state, a pull back force is given to the connecting portion 76.

After the power is cut off, the shape memory alloy wire is restored to the original shape, and the rotating arm 74 is not pulled in the direction of contraction of the shape memory alloy. Under the action of the resilience force of the resilience portion 75, the connecting portion 76 pulls the connecting portion 76 to drive the latch tongue 77 to return to the position above the mobile unit 200, so as to lock the mobile unit 200 and limit the movement thereof.

With reference to fig. 4 and with continued reference to fig. 1, in the present embodiment, corner magnets 240 are further disposed at four corners of the moving unit 200, and the corner magnets 240 are further adapted to press the rotating shaft pin 72 to prevent the rotating shaft pin 72 from falling off.

The corner magnet 240 is further adapted to limit the locking structure 700 and the moving unit 200. Specifically, four corners of the moving unit 200 are respectively provided with a groove, so as to accommodate and clamp the corner magnet 240. The corner magnet 240 abuts against the upper surface of the base 100 and the upper surface of the rotating shaft pin 72 on the rotating arm 74, blocks the rotating direction of the connecting part 76, prevents the rotating shaft pin 72, and has a limiting effect on the rotation of the connecting part 76.

The corner magnet 240 is also filled in the space between the mobile unit 200 and the housing of the camera module, and one side of the corner magnet 240 facing the mobile unit 200 is a surface parallel to the optical axis direction, and can abut against the swing of the mobile unit to keep the mobile unit 200 stable when moving along the optical axis direction.

The technical scheme of the embodiment of the utility model in, utilize the principle that shape memory alloy silk has different lengths under the circumstances of circular telegram and non-circular telegram, combine the resilience force that prestretches the production of resilience portion, come the position of control tape spring bolt 77 to realize the locking function of long-range VCM.

Because shape memory alloy silk possesses fine attitude to and along length direction's shrink, cooperation locking part 720 laminating the flattening design of mobile unit one side, small, the limited residual space of fine incorporation VCM, the convenient nimble locking function that has realized large-stroke VCM.

In addition to the above structure, in this embodiment, the camera module further includes a closed-loop control system.

With continued reference to fig. 4, and with reference to fig. 5, the closed loop control system is disposed on the second mounting plate 102 on the base, on the other side of the mobile unit, and includes: the feedback system of the hall IC120 and the magnet 121 is adapted to ensure position control of the lens movement by monitoring and feeding back the movement of the lens unit 600, thereby achieving rapid focusing.

In this embodiment, the closed-loop control system and the locking structure are symmetrically arranged, so as to keep the weight distribution of the module balanced. And displacement monitoring and feedback of the lens unit are performed by a feedback system of the hall IC and the magnet.

Example two

As shown in fig. 6 to 9, the present embodiment provides a camera module, including:

a mobile unit 200, a base 100 and at least one locking structure 700;

the base 100 is adapted to carry the mobile unit 200;

Specifically, referring to fig. 7 to 8, in this embodiment, the locking portion 720 further includes:

the pivot arm 74, the connecting portion 76, and the spring-back portion 75;

the two sides of the rotating arm 74 are respectively connected with the shape memory alloy part 710 and the connecting part 76, a latch bolt 77 is arranged on the connecting part 76, and the latch bolt 77 is positioned on the upper surface of the mobile unit 200 to lock the mobile unit 200. In this embodiment, the latch tongue 77 includes two

vertical baffle plates

771 and 772 arranged in parallel, and the connecting portion 76. In this embodiment, the perpendicular baffle top in four places that sets up on the spring bolt 77 forms spacingly with the iron casing, increases the anti striking ability of spring bolt, improves the reliability of spring bolt part.

In this embodiment, the method includes:

Specifically, referring to fig. 6 to 8, the swivel arm 74 and the connecting portion 76 are perpendicular to each other. In this embodiment, the rotating arm 74 and the base 100 are respectively provided with corresponding holes, and are rotatably connected through a rotating shaft pin 72.

With continued reference to fig. 9 and 10, in the present embodiment, the locking structure 700 further includes a first mounting plate 110 positioned on one side of the base 100, and the first mounting plate 110 is positioned on one side of the mobile unit 200 and is perpendicular to the bottom of the base 100.

In this embodiment, the method includes:

the rotation arms 74, the connection portions 76 and the resilient portions 75 are respectively provided in an even number, and are symmetrically provided on both sides of the fixing portion 78 with the fixing portion 78 as an axis.

Specifically, in the present embodiment, the rotation arm 74, the connection portion 76 and the resilient portion 75 are two pieces, and the fixing portion 78 is used as an axis, and two sides of the fixing portion 78 are symmetrically distributed. And are located on one side of the mobile unit 200.

In this embodiment, the resilient portion 75 is a curved elastic wire. The rebound 75 is adjusted according to the tension of the SMA filament. In this embodiment, the resilient portion 75 is designed as a bent elastic wire, so that the elastic wire has a uniform stress distribution during use, and the service life and reliability are improved. The elastic wire is connected to the fixing portion 78 on one side and to the connecting portion 76 on the other side, and the connection position is preferably selected to be the lower position. Therefore, the direction of the force generated when the SMA contracts and deforms and the direction of the elastic force of the elastic wire can be kept consistent as much as possible, and the 76 distortion deformation of the locking part in the use process is reduced.

The rebound part 75 is suspended in the hollow window part 13 between the first baffle 11 and the second baffle 12, and the rebound part is somewhat stretched due to the fact that the first baffle 11 and the second baffle 12 are not located on the same plane, so that the pretension force is achieved, the connecting part 76 is fully attached to the second baffle after the shape memory alloy wire is powered off, and the locking effect is guaranteed.

In this embodiment, the shape memory alloy portion 710 includes:

one end of the shape memory alloy wire is arranged in a bending part 73 arranged on the rotating arm 74, the other end of the shape memory alloy wire is connected with an electrical terminal 71 on the bottom surface of the base 110, and the electrical terminal 71 comprises a clamping part for clamping the end of the shape memory alloy wire.

Referring to fig. 10 in conjunction with fig. 6, in the present embodiment, corner magnets 240 are further disposed at four corners of the moving unit 200, and the corner magnets 240 are further adapted to press the rotating shaft pin 72 to prevent the rotating shaft pin 72 from falling off.

The corner magnet 240 is also filled in a space between the mobile unit 200 and the housing of the camera module, and a side facing the mobile unit 200 is a surface parallel to the optical axis direction, and can abut against the swing of the mobile unit to keep the mobile unit 200 stable when moving along the optical axis direction.

With continued reference to fig. 10, and with reference to fig. 11, the closed loop control system is disposed on the second mounting plate 102 on the base, on the other side of the mobile unit, and includes: the feedback system of the hall IC120 and the magnet 121 is adapted to ensure position control of the lens movement by monitoring and feeding back the movement of the lens unit 600, thereby achieving rapid focusing.

EXAMPLE III

The camera module provided by the embodiment comprises the structure of the first embodiment or/and the second embodiment, and further comprises the mirror ring bearing part and the movement supporting part. The lens ring bearing part is used for guaranteeing stable movement and water and dust prevention of the lens, the movement supporting part is used for realizing focusing and zooming in the process, and when the moving assembly moves, the camera module is electrically connected stably.

Referring to fig. 5 or 11, in this embodiment, the camera module includes a base 100, a mobile unit 200 supported by the base 100, an iron case assembly 300 covering and protecting the mobile unit 200, a lens unit 600 supported by the mobile unit 200 and extending and retracting in the iron case assembly 300, and a lens ring 500 sleeved on the top end of the lens unit. Preferably, the present embodiment provides that the camera module comprises a dust-proof film assembly 400 and a film supporting ring at the top end of the lens unit. In this embodiment, the mobile unit 200 further includes: lens protective sheath and cover glass.

Specifically, referring to fig. 12 to 18 in combination with fig. 5 or 11, the camera module includes:

a mobile unit including a coil assembly 210; a fixing unit including: base 100, conducting strip 130 and metal ball 10, base 100 includes: supporting component 101 of evenly distributed all around, supporting component 101 includes first screens 11 and second screens 12, conducting strip 130 install in on the first screens 11, metal ball 10 install in the second screens 12, one side of metal ball 10 with conducting strip 130 is tangent to be contacted, the opposite side with coil pack 210 contacts, in order to be suitable for when the mobile unit removes, coil pack passes through metal ball 10, conducting strip 130 with the focus control chip (not shown) electricity of camera module is connected. With the structure, the camera module can realize a moving coil mode, and when the camera performs telescopic motion during shooting or photography, the coil can be continuously supplied with power through the metal ball 10 and the conducting strip 130, and the power supply line does not obstruct the movement of the camera.

With continued reference to fig. 5, in the present embodiment, the moving unit 200 includes a bearing member, which is located in the iron case assembly 300, is adapted to accommodate the lens unit 600 of the camera module, and moves up and down in the optical axis direction inside the iron case assembly 300.

Specifically, in this embodiment, referring to fig. 13 to 15, the supporting assembly 101 includes: and the columnar structure is positioned on the base 100 and is parallel to the optical axis direction. In this embodiment, the base 100 is a square-like structure, and the supporting members 101 are vertical columnar structures located at four corners of the base. The first clamping positions 11 are located at the outer sides of the columnar structures, and the first clamping position 11 of each columnar structure is two oppositely arranged clamping grooves which are just suitable for accommodating the first connecting part 31 of the conducting strip 130, so that the plane where the first clamping position 11 is located is parallel to the direction of the optical axis; the second clip 12 is a through hole located in the columnar structure and opposite to the plane of the first connection portion 31 of the conductive plate 130, and is adapted to receive the metal ball 10, to enable the metal ball 10 to roll therein, and to continuously contact the conductive plate 130, so as to continuously form a conductive path with the coil assembly 210 through the conductive plate 130.

In addition, the base 100 further includes a circuit board 102, on which a driving chip, a hall sensor, a PCB circuit, and the like are disposed.

Specifically, in this embodiment, as shown in fig. 8, the coil assembly 210 includes a coil body 212 and a carrier-embedded conductive block 211, where the coil body 212 is a wire-wound coil and includes a positive end (not identified) and a negative end (not identified). The carrier-embedded conductive bumps 211 are embedded in the carrier member, and the carrier-embedded conductive bumps 211 include positive carrier-embedded conductive bumps 2111 and negative carrier-embedded conductive bumps 2112. One end of the positive electrode of the coil body 212 is welded to the positive electrode carrier embedded conductive block 2111, and one end of the negative electrode of the coil body 212 is welded to the negative electrode carrier embedded conductive block 2112.

The welding point of the positive end of the coil body 212 and the positive carrier embedded conductive block 2111 is on the carrier, and the welding point of the negative end of the coil body 212 and the negative carrier embedded conductive block 2112 is on the carrier.

The coil body 212 is disposed at the outer ring of the supporting component 101, and the carrier-embedded conductive block 211 is embedded in the inner wall of the bearing component and contacts with the metal ball. The carrier-embedded conductive bumps 211 (the positive carrier-embedded conductive bumps 2111 and the negative carrier-embedded conductive bumps 2112) have two planes, each plane being parallel to the optical axis direction and tangent to the metal balls.

The base 100 further includes: and the conductive wire buried layer 108 is embedded in the base 100, connected with the conductive sheet 130, and connected with the focusing control chip of the camera module through the PCB circuit on the circuit board 102.

The conductive line buried layer 108 includes an anode buried layer 1081 and a cathode buried layer 1082, the anode buried layer 1081 and the anode carrier embedded conductive block 2111 are electrically communicated with the same conductive sheet 130, and the cathode buried layer 1082 and the cathode carrier embedded conductive block 2112 are electrically communicated with the same conductive sheet 130.

Referring to fig. 19 in conjunction with fig. 12 to 18, the conductive sheet 130 includes a first connection portion 31 and a second connection portion 32, the conductive wire buried layer 108 is connected to the first connection portion 31 by welding, and the second connection portion 32 is inserted into the first stopper 11 and contacts the metal ball 10 in the second stopper 12. In this embodiment, the first connection portion 31 and the second connection portion 32 are connected to form a right angle, the first connection portion 31 is provided with a positioning hole 30, the positioning hole 30 is positioned opposite to the base boss, and the conductive line buried layer 108 is exposed between the positioning hole 30 and the second connection portion. In other embodiments, the first connecting portion 31 and the second connecting portion 32 may have other folding angles or both may be connected with a smooth surface.

Specifically, referring to fig. 20 in combination with fig. 12 to 14, in this embodiment, the supporting assembly 101 further includes a third detent 13, the fixing unit further includes an iron case assembly 300, and the iron case assembly 300 includes:

an outer wall 302 and a snap member 301 connected to the outer wall;

the outer wall 302 is disposed corresponding to the circumference of the base 100 and is adapted to receive the mobile unit 200 therein;

the buckle part 301 is adapted to correspond to the supporting component 101 and is mounted at the third clamping position 13, so that the supporting strength of the supporting component can be enhanced.

In summary, as shown in fig. 16 to 20, the positive and negative electrodes of the coil body 212 respectively form a conductive path with the positive and negative electrodes of the focus control chip of the camera module through the carrier embedded conductive block 211, the metal ball 10, the conductive sheet 130, the conductive wire buried layer 108, and the carrier embedded conductive block.

Based on the above arrangement, the conductive path provided in the camera module provided in this embodiment can ensure that the current can be continuously and stably supplied to the coil when the carrier assembly is along the optical axis direction, without hindering the movement of the carrier assembly, by the structure and position arrangement of the carrier embedded conductive block 211, the metal ball 10, the conductive sheet 130, and the conductive wire buried layer 108.

Further, through the arrangement of the carrier embedded conductive block 211, the metal ball 10 and the conductive sheet 130, the carrier assembly is ensured to obtain continuous and stable current in a sufficiently long movement stroke.

Further, preferably, the carrier embedded conductive block 211, the conductive sheet 130 and the conductive line buried layer 108 are made of conductive metal. In this embodiment, it may be copper.

Further, in the present embodiment, preferably, the metal balls 10 are steel balls. Because the hardness and the conductivity of the steel are appropriate, and the rolling friction coefficient of the steel ball is small, the resistance of the moving part can be reduced.

Further, in the present embodiment, preferably, the surface of the metal ball 10 is plated with gold or silver. Preferably, in this embodiment, the surface of the metal ball 10 is further coated with grease mixed with carbon powder or silver powder.

Further, preferably, in this embodiment, at least one, preferably 1 to 4, metal balls correspond to the conductive sheet. Thus, the power supply stability of the moving coil mode can be ensured in a longer stroke range.

In addition, further, in this embodiment, the conductive sheet 130 is: a first conductive sheet 131 or a second conductive sheet 132, wherein the second conductive sheet 132 comprises a bullet-shaped member 34, and the bullet-shaped member 34 is adapted to be elastically deformed by the pressing of the metal ball 10, so as to apply a pressing force to the metal ball 10.

The positive electrode carrier embedded conductive block 2111 or the negative electrode carrier embedded conductive block 2112 is electrically connected to at least the same second conductive sheet 132, and the positive electrode carrier embedded conductive block 2111 and the second conductive sheet 132 corresponding to the negative electrode carrier embedded conductive block 2112 are located on the same side of the base 100.

Thus, when the bottom of the mobile unit 200 is forced to one side, the bullet-shaped part 34 of the second conductive sheet 132 generates a clamping force due to the squeezing deformation of the metal ball 10, so that the mobile unit 200 is ensured not to be separated from the ball during the movement, and the conduction is ensured to be reliable. And the return force of the sub resilient member 34 keeps the moving direction of the lens unit 600 in agreement with the optical axis direction.

Further, the second conductive sheets 132 corresponding to the positive electrode carrier embedded conductive block 2111 and the negative electrode carrier embedded conductive block 2112 are located on the same side of the base 100, and a resultant force generated by the two second conductive sheets 132 on the same side to the moving unit 200 is perpendicular to the optical axis direction and is parallel to a resultant force generated by the elastic component 502 to the moving unit 200, so as to keep the moving unit 200 stable in the moving process.

With continued reference to fig. 17-20, preferably, the fixing unit further comprises: a dust-proof film and a support film structure; the supporting film structure is positioned between the iron shell component and the mirror ring and is fixedly connected with the iron shell component; the dustproof film is connected with the upper part of the lens and the film supporting structure so as to isolate the inside and the outside of the camera module.

The camera module further comprises a mirror ring 500, and the mirror ring 500 is arranged on the outer ring of the top end of the lens unit 600.

The ring 500 includes a bearing 501 and an elastic member 502, the elastic member 502 is disposed in the bearing 501, and when the lens unit 600 is forced to one side, the elastic member 502 returns to its original position by resilience force, so as to keep the movement direction of the lens unit 600 consistent with the optical axis direction.

The elastic component comprises an elastic split ring 502 with an opening of A, the bearing part comprises an inner ring wall 532, an outer ring wall 531 and an annular convex strip 533 between the inner ring wall 532 and the outer ring wall 531, a glue dispensing groove 55 is arranged on the annular convex strip 533, the elastic split ring 502 is arranged between the outer ring wall 531 and the annular convex strip 533, and the glue dispensing groove 55 is suitable for containing glue to stick the body of the elastic split ring and keep the elastic movement of the open end of the elastic split ring 502.

The annular protruding strip 533 is further provided with a rolling groove 56 adapted to place the ball 19, and the rolling groove 56 includes: a first rolling groove 561 close to two ends of the opening A of the elastic opening supporting ring and a second spherical groove 562 near the non-opening area of the elastic opening ring, wherein the glue dispensing groove 57 is located between the first rolling groove 561 and the second rolling groove 562 or between the two second rolling grooves 562, and the glue dispensing groove is suitable for setting glue to stick the elastic opening ring 502.

The first rolling slot 561 and the second conductive plate 132 are disposed in a vertical direction. That is, the direction of the elastic force provided by the conductive sheet 130 or the elastic member 502 is the same on the base 100 and the mirror ring 500.

The metal ball 10 is a steel ball. The friction between the steel ball and the moving part is rolling friction, the friction coefficient is small, and the moving part can move more smoothly.

The surface of the metal ball 10 is plated with gold or silver. This can increase the conductivity of the metal ball. The number of the metal balls corresponding to the conductive sheet 130 is 1-3. Preferably, in this embodiment, the number of the metal balls corresponding to the conductive sheet 130 is 1.

Preferably, the balls 19 are steel balls or ceramic balls.

The mobile unit further comprises a coil assembly;

be provided with on the base and include: conducting strip and metal ball, the base still includes: the supporting component comprises a first clamping position and a second clamping position, the conducting strip is installed on the first clamping position, the metal ball is installed in the second clamping position, one side of the metal ball is tangent to the conducting strip, and the other opposite side of the metal ball is in contact with the coil component; when the mobile unit moves, the coil assembly is electrically connected with the focusing control chip through the metal ball and the conducting strip.

In this embodiment, the moving unit includes a bearing member, and the bearing member is located in the iron shell assembly, is suitable for accommodating the lens unit of the camera module, and moves up and down along the optical axis direction inside the iron shell assembly.

In this embodiment, the coil assembly includes a coil body and a carrier-embedded conductive block; the coil body is a wire winding coil and comprises a positive electrode end and a negative electrode end; the carrier embedded conductive block comprises a positive carrier embedded conductive block and a negative carrier embedded conductive block; and one end of the anode of the coil body is welded on the anode carrier embedded conductive block, and one end of the cathode of the coil body is welded and connected with the cathode carrier embedded conductive block.

In this embodiment, the carrier-embedded conductive block has two planes, each plane being parallel to the optical axis and tangent to the metal ball.

In this embodiment, a welding portion between one end of the positive electrode of the coil body and the positive electrode carrier embedded conductive block is on the carrier, and a welding portion between one end of the negative electrode of the coil body and the negative electrode carrier embedded conductive block is on the carrier.

In this embodiment, the coil body is electrically connected to the focus control chip through the carrier embedded conductive block, the metal ball, and the conductive sheet.

In this embodiment, the coil body is disposed on the outer ring of the support assembly, the positive carrier embedded conductive block and the negative carrier embedded conductive block are embedded in the bearing component, and the conductive sheet is exposed opposite to the base support assembly to contact with the metal ball.

In this embodiment, the support assembly includes:

In this embodiment, the base further includes: and the conductive wire buried layer is embedded into the base, one end of the conductive wire buried layer is connected with the conductive sheet, and the other end of the conductive wire buried layer is connected with a focusing control chip of the camera module through a PCB circuit.

In this embodiment, the conductive wire buried layer includes a positive electrode buried layer and a negative electrode buried layer, the positive electrode buried layer and the positive electrode carrier embedded conductive block are electrically communicated with the same conductive sheet, and the negative electrode buried layer and the negative electrode carrier embedded conductive block are electrically communicated with the same conductive sheet.

In this embodiment, the conductive sheet includes a first connection portion and a second connection portion, the conductive wire buried layer is connected to the first connection portion by welding, and the second connection portion is inserted into the first clamping portion and contacts with the metal ball.

In this embodiment, the conductive sheet is: the first conducting strip or the second conducting strip comprises a sub elastic component, and the sub elastic component is suitable for contacting with the metal ball to generate elastic deformation so as to apply extrusion force to the metal ball.

In this embodiment, the conductive sheet corresponding to the positive electrode carrier embedded conductive block or the negative electrode carrier embedded conductive block at least includes one second conductive sheet, and the positive electrode carrier embedded conductive block and the second conductive sheet corresponding to the negative electrode carrier embedded conductive block are located on the same side of the base.

In this embodiment, the supporting component still includes the third screens, the base still includes the iron clad subassembly, the iron clad subassembly includes:

the outer wall and the buckle part are connected with the outer wall;

In this embodiment, the camera module still includes the mirror ring, the mirror ring fixed set up in the top of iron-clad subassembly.

In this embodiment, the base further includes:

a dust-proof film and a support film structure;

In this embodiment, the ring includes a bearing portion and an elastic member, the elastic member is disposed in the bearing, and an elastic force of the elastic member to the moving member is perpendicular to the optical axis direction, so as to be suitable for maintaining the movement direction of the lens to be consistent with the optical axis direction in the movement process of the lens.

In this embodiment, the elastic component includes an elastic split ring, the bearing portion includes an inner ring wall, an outer ring wall, and an annular protruding strip located between the inner ring wall and the outer ring wall, a glue dispensing groove is disposed on the annular protruding strip, the elastic split ring is disposed between the outer ring wall and the annular protruding strip, and the glue dispensing groove is suitable for containing glue to glue the ring body of the elastic split ring, so as to retain the elastic movement of the open end of the elastic split ring.

In this embodiment, still be provided with the roll groove that is suitable for placing the ball on the annular sand grip, the roll groove includes: the glue dispensing groove is positioned between the first rolling groove and the second rolling groove or between the two second rolling grooves, and the glue dispensing groove is suitable for setting glue to stick the elastic split ring.

In this embodiment, the first rolling groove and the second conductive plate are disposed in a vertical direction.

In this embodiment, the metal balls are steel balls.

In this embodiment, the surface of the metal ball is plated with gold or silver.

In this embodiment, the surface of the metal ball is further coated with grease.

In this embodiment, the conductive sheet corresponds to at least one metal ball.

In this embodiment, the ball is a steel ball or a ceramic ball.

Additionally, the embodiment of the utility model provides an in still provide a digital device, include:

a main body of the body;

Although the present invention has been disclosed in the preferred embodiments, it is not intended to limit the present invention, and any person skilled in the art can use the above-mentioned method and technical contents to make possible changes and modifications to the technical solution of the present invention without departing from the spirit and scope of the present invention, therefore, any simple modification, equivalent changes and modifications made to the above embodiments by the technical substance of the present invention all belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a camera module which characterized in that includes:

a mobile unit, a base and at least one locking structure;

the base is suitable for bearing the mobile unit;

2. The camera module of claim 1, wherein the latch portion further comprises:

a rotating arm, a connecting part and a springback part;

3. The camera module of claim 2, comprising:

4. The camera module of claim 2, wherein the latch is a lateral plate or at least two parallel vertical plates on the upper surface of the mobile unit.

5. The camera module according to claim 2 or 3, wherein the rotation axis of the rotation arm is perpendicular to the contraction direction of the shape memory alloy portion, and the resilience of the resilient portion is parallel to the contraction direction of the shape memory alloy portion.

6. The camera module of claim 2, wherein the pivot arm and the base are respectively provided with corresponding holes, and the pivot arm and the base are rotatably connected through a pivot pin.

7. The camera module of claim 6, wherein corner magnets are further disposed at four corners of the moving unit, and the corner magnets are further adapted to press the rotating shaft pin to prevent the rotating shaft pin from falling off.

8. The camera module of claim 2, wherein the locking portion further comprises a fixing portion fixedly disposed on the base at a side of the mobile unit.

9. The camera module of claim 8, comprising:

the locking structure further comprises a mounting plate positioned on one side of the base, the mounting plate is positioned on one side of the mobile unit and is vertical to the bottom of the base; the fixing part is attached to the mounting plate.

10. The camera module of claim 9, comprising:

11. The camera module of claim 9, comprising:

the spring-back portion is pre-stretched in a hollow window between the first baffle and the second baffle.

12. The camera module of claim 9, comprising: the fixing part is attached and fixed with the first baffle of the mounting plate through riveting, pasting or fixing block assembling.

13. The camera module of claim 3, wherein the shape memory alloy portion comprises:

14. The camera module of claim 1, further comprising a closed-loop control system disposed on the base on the other side of the mobile unit, the closed-loop control system comprising: and the feedback system of the Hall IC and the magnet is suitable for monitoring and feeding back the movement of the lens module to ensure the position control of the movement of the lens so as to realize quick focusing.

15. The camera module of claim 14, wherein the magnets are disposed at the corners of the mobile unit and are corner magnets, and the corner magnets are further adapted to limit the position of the locking structure and the mobile unit.

16. The camera module of claim 1, wherein said mobile unit further comprises a coil assembly;

17. The camera module according to claim 16, wherein the moving unit comprises a bearing member, the bearing member being located in an iron case assembly, adapted to receive a lens unit of the camera module, and moving up and down in an optical axis direction inside the iron case assembly.

18. The camera module of claim 17, wherein the coil assembly comprises a coil body and a carrier-embedded conductive block; the coil body is a wire winding coil and comprises a positive electrode end and a negative electrode end; the carrier embedded conductive block comprises a positive carrier embedded conductive block and a negative carrier embedded conductive block; and one end of the anode of the coil body is welded on the anode carrier embedded conductive block, and one end of the cathode of the coil body is welded and connected with the cathode carrier embedded conductive block.

19. The camera module of claim 18, wherein said carrier-embedded conductive bumps have two planar surfaces, each planar surface being parallel to the optical axis and tangential to said metal balls.

20. The camera module of claim 19, wherein a weld between the positive end of the coil body and the positive carrier-embedded conductive block is on the carrier, and a weld between the negative end of the coil body and the negative carrier-embedded conductive block is on the carrier.

21. The camera module of claim 18, wherein the coil body is electrically connected to the focus control chip through the carrier embedded conductive block, the metal ball, and the conductive sheet.

22. The camera module according to claim 21, wherein the coil body is disposed on an outer ring of the support member, the positive carrier embedded conductive block and the negative carrier embedded conductive block are embedded in the bearing member, and a conductive sheet is exposed directly opposite to the base support member to contact the metal balls.

23. The camera module of claim 16, wherein the support assembly comprises:

24. The camera module of claim 18, wherein the base further comprises: and the conductive wire buried layer is embedded into the base, one end of the conductive wire buried layer is connected with the conductive sheet, and the other end of the conductive wire buried layer is connected with a focusing control chip of the camera module through a PCB circuit.

25. The camera module of claim 24, wherein the conductive line buried layer comprises a positive buried layer and a negative buried layer, the positive buried layer and the positive carrier-embedded conductive block are in electrical communication with the same conductive sheet, and the negative buried layer and the negative carrier-embedded conductive block are in electrical communication with the same conductive sheet.

26. The camera module of claim 24, wherein the conductive strips comprise a first connection portion and a second connection portion, the buried conductive wire layer is welded to the first connection portion, and the second connection portion is inserted into the first clip and contacts the metal ball.

27. The camera module of claim 21, wherein the conductive strips are: the first conducting strip or the second conducting strip comprises a sub elastic component, and the sub elastic component is suitable for contacting with the metal ball to generate elastic deformation so as to apply extrusion force to the metal ball.

28. The camera module according to claim 27, wherein the conductive sheet corresponding to the positive electrode carrier embedded conductive block or the negative electrode carrier embedded conductive block comprises at least one of the second conductive sheets, and the second conductive sheets corresponding to the positive electrode carrier embedded conductive block and the negative electrode carrier embedded conductive block are located on the same side of the base.

29. The camera module of claim 27, wherein the support assembly further comprises a third detent, the iron shell assembly comprising:

the outer wall and the buckle part are connected with the outer wall;

30. The camera module of claim 27, further comprising a mirror ring fixedly disposed on a top end of the iron shell assembly.

31. The camera module of claim 30, wherein the base further comprises:

a dust-proof film and a support film structure;

32. The camera module according to claim 30, wherein the ring comprises a bearing portion and an elastic member, the elastic member is disposed in the bearing, and the elastic member is configured to be perpendicular to the optical axis direction for keeping the moving direction of the lens in line with the optical axis direction during the movement of the lens.

33. The camera module of claim 32, wherein the resilient member comprises a resilient split ring, the bearing portion comprises an inner ring wall, an outer ring wall, and an annular rib between the inner ring wall and the outer ring wall, the annular rib is provided with a glue dispensing slot, the resilient split ring is disposed between the outer ring wall and the annular rib, and the glue dispensing slot is adapted to receive glue to adhere to the resilient split ring body and retain resilient movement of the open end of the resilient split ring.

34. The camera module of claim 33, wherein the annular rib is further provided with a rolling groove adapted to receive a ball, the rolling groove comprising: the glue dispensing groove is positioned between the first rolling groove and the second rolling groove or between the two second rolling grooves, and the glue dispensing groove is suitable for setting glue to stick the elastic split ring.

35. The camera module of claim 34, wherein the first rolling slot and the second conductive strip are disposed in a vertical direction.

36. The camera module of claim 16, wherein said metal balls are steel balls.

37. The camera module of claim 36, wherein the metal balls are surface plated with gold or silver.

38. The camera module of claim 36 or 37, wherein the surface of said metal ball is further coated with a grease.

39. The camera module of claim 27, wherein the conductive strip corresponds to at least one metal ball.

40. The camera module of claim 34, wherein said balls are steel balls or ceramic balls.

41. A digital device, comprising:

a main body of the body;

the camera module of claim 1, wherein the camera module is disposed in the body, and when the camera module is in focus, a lens unit of the camera module protrudes from a surface of the body by more than or equal to 800 micrometers.