CN115629459A

CN115629459A - Lens barrel assembly and manufacturing method thereof, voice coil motor, camera module and terminal equipment

Info

Publication number: CN115629459A
Application number: CN202211292350.0A
Authority: CN
Inventors: 刘洋; 李琛; 原帅
Original assignee: Honor Device Co Ltd
Current assignee: Honor Device Co Ltd
Priority date: 2022-10-21
Filing date: 2022-10-21
Publication date: 2023-01-20

Abstract

The embodiment of the application relates to the technical field of electronic equipment, and provides a lens cone assembly, a manufacturing method of the lens cone assembly, a voice coil motor, a camera module and terminal equipment, wherein the lens cone assembly is applied to the voice coil motor, the voice coil motor comprises a magnetic part, the lens cone assembly comprises a cylinder body and a coil, and the cylinder body is an insulating cylinder body; the coil can conduct electricity and is used for driving the barrel to move under the action of a magnetic field of the magnetic part after being electrified; wherein, the coil is embedded into the barrel so that the coil and the barrel form an integrated structure. According to the embodiment of the application, the size of the voice coil motor can be reduced, and the space utilization rate is improved, so that the obstruction caused by space limitation in the structural design process of the camera module can be reduced; moreover, the method is beneficial to reducing the accumulation of foreign matters such as dust and the like, is further beneficial to improving the imaging quality, and can reduce the possibility of failure caused by collision or friction of the coil.

Description

Lens barrel assembly and manufacturing method thereof, voice coil motor, camera module and terminal equipment

Technical Field

The present application relates to the field of electronic devices, and in particular, to a lens barrel assembly, a manufacturing method thereof, a voice coil motor, a camera module, and a terminal device.

Background

Electronic devices typically include a camera module to implement a camera function. The camera module generally includes a lens assembly and a voice coil motor, and the voice coil motor can drive the lens assembly to move so as to implement an auto-focusing function or an optical anti-shake function.

Voice coil motor among the correlation technique is subject to current structural design, leads to its size to be difficult to further reduce, and space utilization is lower, influences camera module and electronic equipment's design.

Disclosure of Invention

The embodiment of the application provides a lens barrel assembly, a manufacturing method of the lens barrel assembly, a voice coil motor, a camera module and a terminal device, and can solve the technical problem that the size of the voice coil motor is limited by the existing structural design and is difficult to reduce in the related art.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

in a first aspect, an embodiment of the present application provides a lens barrel assembly applied to a voice coil motor, where the voice coil motor includes a magnetic member, and the lens barrel assembly includes:

the cylinder body is an insulating cylinder body; and

the coil can conduct electricity and is used for driving the barrel to move under the action of the magnetic field of the magnetic part after being electrified;

wherein, the coil is embedded in the barrel body, so that the coil and the barrel body form an integrated structure.

The technical scheme in the embodiment of the application has at least the following technical effects or advantages:

the lens cone subassembly that this application embodiment provided, because coil embedding barrel and barrel form the integral type structure, compare in the mode that the coil twined in the barrel outside, can reduce the size except the size of barrel that brings because of the volume of coil occupies, can reduce the holistic external dimension that barrel and coil formed, and then do benefit to the size that reduces the voice coil motor, improve space utilization, thereby do benefit to the hindrance that the space restriction that receives among the structural design in-process of reducing the camera module brought. In addition, the coil is embedded into the barrel and forms an integrated structure with the barrel, and compared with a mode that the coil is wound outside the barrel, the integrated structure is further beneficial to reducing accumulation of foreign matters such as dust and the like, further beneficial to improving imaging quality and capable of reducing the possibility of failure caused by impact or friction of the coil.

In some embodiments of the first aspect, the coil and the barrel are of an injection molded unitary construction.

In some embodiments of the first aspect, the coil is located between an outer sidewall of the barrel and an axis of the barrel.

In some embodiments of the first aspect, the coil is located between an outer sidewall of the barrel and an inner sidewall of the barrel.

In some embodiments of the first aspect, the coil is a wire-wound coil.

In some embodiments of the first aspect, the coil is annular and encircles the axis of the barrel.

In some embodiments of the first aspect, the coil comprises a coil circuit board and an etched coil etched formed on the coil circuit board, the coil circuit board and the etched coil both embedded in the barrel.

In some embodiments of the first aspect, the barrel is a lens barrel comprising an accommodation space for accommodating a lens; or

The cylinder is a carrier of a lens barrel for carrying the lens group, and the lens barrel is used for accommodating the lens of the lens group.

In some embodiments of the first aspect, the lens barrel assembly further includes a first elastic member and a second elastic member, the coil includes a first wire outlet end and a second wire outlet end, the first wire outlet end is electrically connected to the first elastic member, and the second wire outlet end is electrically connected to the second elastic member.

In some embodiments of the first aspect, the lens barrel assembly further includes a first conductive member and a second conductive member, the first wire outlet end is electrically connected to the first elastic member through the first conductive member, and the second wire outlet end is electrically connected to the second elastic member through the second conductive member; the first outlet end and the second outlet end are both embedded in the cylinder.

In some embodiments of the first aspect, the first conductive member is embedded in the barrel; and/or the second conductive piece is embedded in the cylinder body.

In some embodiments of the first aspect, the barrel includes a first support portion on which the first elastic member and the first conductive member are disposed, and a second support portion on which the second elastic member and the second conductive member are disposed; the first wire outlet end is embedded into the first supporting part, and the second wire outlet end is embedded into the second supporting part.

In some embodiments of the first aspect, the first elastic element includes a first portion, the first portion is electrically connected to the first outlet end, and the first portion and the first outlet end are embedded in the barrel; and/or

The second elastic piece comprises a second part, the second part is electrically connected with the second wire outlet end, and the second part and the second wire outlet end are embedded into the barrel.

In a second aspect, an embodiment of the present application provides a manufacturing method for manufacturing the lens barrel assembly according to any one of the above first aspect, the manufacturing method including:

providing a coil;

and embedding the coil into the barrel so that the coil and the barrel form an integrated structure.

In some embodiments of the second aspect, said embedding the coil into the barrel such that the coil and the barrel form a unitary structure comprises:

and forming an injection molding integrated structure by the coil and the barrel by adopting an injection molding process.

In some embodiments of the second aspect, the coil includes a first outlet end and a second outlet end, and the manufacturing method further includes, before the inserting the coil into the barrel to form the coil and the barrel into a unitary structure:

providing a first elastic member and a second elastic member;

and the first wire outlet end is electrically connected with the first elastic piece, and the second wire outlet end is electrically connected with the second elastic piece.

In some embodiments of the second aspect, the coil includes a first outlet end and a second outlet end, and after the coil is inserted into the barrel to form the coil and the barrel into a unitary structure, the manufacturing method further includes:

providing a first elastic member and a second elastic member;

In a third aspect, an embodiment of the present application provides a voice coil motor, including:

a housing;

the magnetic part is arranged on the shell; and

in the lens barrel assembly according to any one of the embodiments of the first aspect, the barrel is movably disposed on the housing, and the coil is powered on to drive the barrel to move under the action of the magnetic field of the magnetic member.

In a fourth aspect, an embodiment of the present application provides a camera module, where the camera module includes the voice coil motor of the third aspect;

the camera module further comprises a lens, and the lens is accommodated in the barrel; or, the camera module further comprises a lens group, and a lens barrel of the lens group is arranged on the barrel body.

In a fifth aspect, an embodiment of the present application provides a terminal device, where the terminal device includes:

an apparatus main body; and

the camera module of the fourth aspect, wherein the camera module is disposed on the apparatus main body.

It is to be understood that, for the beneficial effects of the second, third, fourth and fifth aspects, reference may be made to the description of the first aspect, and further description is omitted here.

Drawings

Fig. 1 is a schematic structural diagram of a voice coil motor and a lens assembly provided in the related art;

fig. 2 is a schematic structural diagram of a terminal device according to an embodiment of the present application;

fig. 3 is a schematic structural diagram of a camera module according to an embodiment of the present application;

fig. 4 is a schematic structural diagram of a camera module according to another embodiment of the present application;

fig. 5 is a schematic structural diagram of a voice coil motor according to an embodiment of the present application;

fig. 6 is a schematic structural diagram of a first lens barrel assembly according to an embodiment of the present disclosure;

fig. 7 is a schematic sectional view of the lens barrel assembly shown in fig. 6;

fig. 8 is a schematic cross-sectional view of a second lens barrel assembly according to an embodiment of the present application;

fig. 9 is a schematic cross-sectional view of a third lens barrel assembly according to an embodiment of the present application;

fig. 10 is a schematic cross-sectional view of a fourth lens barrel assembly according to an embodiment of the present application;

fig. 11 is a schematic cross-sectional view of a fifth lens barrel assembly according to an embodiment of the present application;

fig. 12 is a schematic cross-sectional view of a sixth lens barrel assembly according to an embodiment of the present application;

fig. 13 is a schematic cross-sectional view of a seventh lens barrel assembly according to an embodiment of the present application;

fig. 14 is a schematic cross-sectional view of an eighth lens barrel assembly according to an embodiment of the present application;

fig. 15 is a schematic cross-sectional view of a ninth lens barrel assembly according to an embodiment of the present application;

fig. 16 is a schematic flow chart illustrating a manufacturing method of a lens barrel assembly according to an embodiment of the present application;

fig. 17 is a schematic flow chart illustrating a manufacturing method of a lens barrel assembly according to another embodiment of the present application;

fig. 18 is a schematic flowchart of a manufacturing method of a lens barrel assembly according to yet another embodiment of the present application.

Wherein, in the figures, the various reference numbers:

1. a voice coil motor; 01. a motor housing; 02. a magnet; 03. a carrier; 04. a motor coil; 05. an upper spring plate; 06. a lower spring plate; 2. a lens assembly;

10. a lens barrel assembly; 11. a barrel; 12. a coil; 121. a coil circuit board; 122. etching the coil; 13. a first elastic member; 131. a first portion; 14. a second elastic member; 141. a second region; 1201. a first outlet terminal; 1202. a second outlet terminal; 15. a first conductive member; 16. a second conductive member; 111. a first support section; 112. a second support portion; 113. an internal thread; 1101. an accommodating space; 114. an outer sidewall; 115. an inner sidewall;

100. a voice coil motor; 20. a housing; 21. a base; 22. a support member; 30. a magnetic member; 40. an elastic structure;

1000. a camera module; 200. a lens; 300. a lens group; 310. a lens barrel; 400. an optical filter; 500. an image sensor; 600. a camera circuit board;

10000. a terminal device; 2000. an apparatus main body; 2100. a terminal housing; 2200. a display screen; 2300. an equipment circuit board.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present application and should not be construed as limiting the present application.

In the description of the present application, it is to be understood that the terms "length," "width," "thickness," "top," "bottom," "inner," "outer," "upper," "lower," "left," "right," and the like are used in the orientations and positional relationships indicated in the drawings for the purpose of convenience in describing the application and simplifying the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore should not be construed as limiting the application.

The terms "first", "second", and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of indicated technical features. For example, the first elastic member and the second elastic member are only used for distinguishing different elastic members, and the sequence thereof is not limited, and the first elastic member may be named as the second elastic member, and the second elastic member may be named as the first elastic member, without departing from the scope of the various described embodiments. And the terms "first", "second", etc. do not limit the indicated features to be necessarily different.

In this application, unless expressly stated or limited otherwise, the terms "connected" and "coupled" are to be construed broadly, as they may be, for example, fixedly coupled, detachably coupled, or integrally formed; the connection can be mechanical connection or electrical connection; they may be directly connected or indirectly connected through intervening media, or may be connected through the use of two elements or the interaction of two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In the present application, "and/or" is only one kind of association relation describing an associated object, and means that three kinds of relations may exist; for example, a and/or B, may represent: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.

It is noted that, in the present application, the words "in some embodiments," "exemplary," "such as," and "like" are used to mean serving as an example, instance, or illustration. Any embodiment or design described herein as "in some embodiments," "exemplary," "e.g.," is not to be construed as preferred or advantageous over other embodiments or designs. Rather, use of the words "in some embodiments," "exemplary," "e.g.," are intended to present relevant concepts in a concrete fashion.

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further detail below with reference to the accompanying drawings and embodiments.

Electronic devices (e.g., mobile phones, notebook computers, etc.) generally include a Camera Module (CCM) to implement a Camera function. The camera module generally includes a Lens assembly (Lens, including a Lens barrel and a Lens accommodated in the Lens barrel), and a Voice Coil Motor (VCM), which is also called a Voice Coil Motor, and is capable of driving the Lens assembly to move so as to implement an auto Focus function (Automatic Focus, in which the position of the entire Lens assembly is moved by a micro distance to control the length of the focal length of the Lens assembly, thereby implementing Image clarity) or an Optical Image Stabilization function (OIS).

Referring to fig. 1, fig. 1 is a schematic diagram illustrating a structure of a voice coil motor 1 and a lens assembly 2 in a related art. This voice Coil motor 1 includes motor casing 01, magnet 02, carrier 03 (Carrier), motor Coil 04 (Coil), go up shell fragment 05 and shell fragment 06 down, magnet 02 is fixed in motor casing 01's inside, the movably inside that sets up in motor casing 01 of Carrier 03, the upper end of Carrier 03 is connected with motor casing 01 through last shell fragment 05, the lower extreme of Carrier 03 is connected with motor casing 01 through shell fragment 06 down, motor Coil 04 twines in the periphery of Carrier 03.

According to the ampere force principle, after the motor coil 04 is electrified, the motor coil can be stressed under the action of the magnetic field of the magnet 02 to move, and then the carrier 03 is driven to move. The carrier 03 moves, namely the upper spring plate 05 and the lower spring plate 06 are stretched, and the upper spring plate 05 and the lower spring plate 06 can balance the force borne by the motor coil 04 and the carrier 03, so that the carrier 03 can move stably. The carrier 03 is used for bearing the lens assembly 2 of the camera module, so that the carrier 03 moves to drive the lens assembly 2 to move simultaneously, and an automatic focusing function or an optical anti-shake function is realized.

Since the radial dimension a (the dimension in the direction perpendicular to the optical axis of the lens assembly 2, which may also be referred to as the outer diameter or the width of the voice coil motor 1) of the voice coil motor 1 is affected by the dimensions of the motor coil 04, the carrier 03, the magnet 02, and the motor housing 01, the radial dimension a of the voice coil motor 1 is large and is difficult to further reduce, and therefore, the structural design of the camera module and the electronic device using the camera module is limited by space.

In addition, since the motor coil 04 is formed by winding a wire around the outside of the carrier 03, not only foreign substances such as dust are easily accumulated during the winding process, which affects the image quality, but also foreign substances such as dust are easily generated by colliding or rubbing with the motor housing 01 or the magnet 02 during the movement of the motor coil 04 due to the energization, and the motor coil 04 is easily deformed or damaged during the collision or rubbing process, which results in a failure.

In view of the above, embodiments of the present invention provide a lens barrel assembly, a method for manufacturing the lens barrel assembly, a voice coil motor including the lens barrel assembly, a camera module including the voice coil motor, and a terminal device including the camera module, which can solve the technical problem in the related art that the size of the voice coil motor is limited by the existing structural design and is difficult to reduce, and can solve the technical problem that the motor coil is prone to accumulate foreign matters such as dust and is prone to be damaged by impact or friction.

The terminal device provided in the embodiment of the present application may be, but is not limited to, a mobile phone, a tablet computer, a Laptop computer (Laptop), a Notebook computer (Notebook PC), a Personal Digital Assistant (PDA), a wearable device (e.g., a watch), a vehicle-mounted device, an Augmented Reality (AR)/Virtual Reality (VR) device, a Point of sale (POS), a tachograph, an intercom, a camera, and other electronic devices having a camera function (including taking a picture, recording a video, intelligently recognizing and scanning).

Referring to fig. 2, fig. 2 is a schematic structural diagram of a terminal device 10000 according to some embodiments of the present application. Terminal equipment 10000 includes camera module 1000 and equipment main part 2000, and camera module 1000 sets up on equipment main part 2000. In the embodiment of the present application, description is given by taking the terminal device 10000 as a mobile phone as an example.

The device body 2000 is a body portion of the terminal device 10000, and the device body 2000 may include a terminal housing 2100 and a display screen 2200, and the display screen 2200 is disposed on the terminal housing 2100. The camera module 1000 may be disposed inside or outside the terminal housing 2100. The camera module 1000 is used for capturing images of the selected target and forming corresponding image information. An incoming light portion of the camera module 1000 (the incoming light portion is a portion for allowing external light to enter) may be located on a side close to the display screen 2200 to take an image toward a side where the display surface of the display screen 2200 is located, which is exemplarily shown in fig. 2; the light entering portion of the camera module 1000 may be located on a side of the terminal housing 2100 facing away from the display screen 2200 to capture images on a side facing away from the display screen 2200.

The device body 2000 may further include a device circuit board 2300, and the device circuit board 2300 is disposed inside the terminal housing 2100. Optionally, the device circuit board 2300 may be a motherboard of the terminal device 10000, and the motherboard may include a Central Processing Unit (CPU), a smart algorithm chip or a Power Management chip (PMIC), and may also include electronic devices such as a controller module, a memory module, a communication module, and a radio frequency module. The camera module 1000 may be electrically connected to the device circuit board 2300, so as to facilitate control of the camera module 1000 via the device circuit board 2300.

Illustratively, the camera module 1000 may include one of a male socket and a female socket of an electrical connector, and the device circuit board 2300 may include the other of the female socket and the male socket of the electrical connector, which are plugged into the female socket through the male socket, so as to electrically connect the camera module 1000 and the device circuit board 2300. For example, when a user inputs an image pickup instruction, the device circuit board 2300 may receive the image pickup instruction and control the camera module 1000 to pick up an image of a target object, thereby implementing an image pickup function of the camera module 1000.

It can be understood that the number of the camera modules 1000 of the terminal device 10000 may be one or more, and when the number of the camera modules 1000 is multiple, the camera modules may be arranged on the device main body 2000 according to requirements, which is not limited in this embodiment.

Referring to fig. 3, fig. 3 is a schematic structural diagram of a camera module 1000 according to some embodiments of the present disclosure. The camera module 1000 includes a voice coil motor 100 and a lens 200, and the lens 200 may be directly disposed on the voice coil motor 100. The number of the lenses 200 may be one or more, and a plurality of the lenses 200 may form a lens group. The type and number of the lenses 200 may be specifically set according to needs, and are not limited in the embodiments of the present application.

It is understood that the VCM 100 may be any of various VCM types, such as a leaf spring type VCM, a ball type VCM, a friction type VCM, etc. Fig. 3 illustrates an example of the voice coil motor 100 as a leaf spring type voice coil motor. The voice coil motor 100 is used to drive the lens 200 to move, so as to implement an auto-focusing function or an optical anti-shake function.

In the above embodiment, the lens 200 is directly disposed on the voice coil motor 100, and it can also be understood that a part of the voice coil motor 100 is used as a lens barrel for accommodating the lens 200, so that intermediate parts such as a carrier for carrying the lens barrel of the lens group can be saved, which is beneficial to reducing the size of the camera module 1000.

However, in other embodiments, the lens 200 may be indirectly disposed on the voice coil motor 100.

Referring to fig. 4, fig. 4 is a schematic structural diagram of a camera module 1000 according to another embodiment of the present disclosure. The camera module 1000 includes a voice coil motor 100 and a lens set 300, the lens set 300 includes a lens barrel 310 and a lens 200 accommodated inside the lens barrel 310, and the lens barrel 310 is disposed on the voice coil motor 100. That is, the lens 200 is indirectly disposed on the voice coil motor 100 through the lens barrel 310, and in this case, the lens set 300 can be produced and assembled as a separate component, which is more flexible and easy to replace. The voice coil motor 100 is used to drive the lens group 300 to move, so as to implement an auto-focusing function or an optical anti-shake function.

Optionally, referring to fig. 3 and fig. 4, the camera module 1000 may further include an optical filter 400 and an image sensor 500, wherein the image sensor 500 is located on the image side of the lens 200 or the lens assembly 300, and the optical filter 400 is located between the image sensor 500 and the lens 200 or the lens assembly 300. External light can enter from the object side of the lens element 200 or the lens assembly 300, and after being converged by the lens element 200 or the lens assembly 300, the light is filtered by the filter 400 and finally projected to the image sensor 500, so as to form a corresponding light image on the image sensor 500.

Optionally, referring to fig. 3 and fig. 4, the camera module 1000 may further include a camera circuit board 600, and the image sensor 500 may be electrically connected to the camera circuit board 600. Voice coil motor 100 may be electrically connected to camera circuit board 600 to facilitate control of voice coil motor 100 via camera circuit board 600.

The camera circuit board 600 may be electrically connected to the device circuit board 2300 of the terminal device 10000; for example, the camera circuit board 600 may include one of a male socket and a female socket of an electrical connector, and the device circuit board 2300 may include the other of the female socket and the male socket of the electrical connector, and the male socket and the female socket are plugged together to electrically connect the camera circuit board 600 and the device circuit board 2300, so as to electrically connect the camera module 1000 and the device circuit board 2300.

Alternatively, the camera Circuit board 600 may be a Flexible Printed Circuit (FPC) capable of being flexibly bent or deformed, facilitating installation and facilitating electrical connection with the device Circuit board 2300.

Referring to fig. 5, fig. 5 is a schematic structural diagram of a voice coil motor 100 according to some embodiments of the present disclosure. The voice coil motor 100 includes a lens barrel assembly 10, a housing 20, and a magnetic member 30; the magnetic member 30 is disposed on the housing 20; the lens barrel assembly 10 includes a barrel 11 and a coil 12 disposed on the barrel 11, the barrel 11 is movably disposed on the housing 20, and the coil 12 drives the barrel 11 to move under the magnetic field of the magnetic member 30 after being energized.

The cylinder 11 of the lens barrel assembly 10 is used for carrying the lens 200 or the lens group 300 of the camera module 1000, and the cylinder 11 can drive the lens 200 or the lens group 300 to move simultaneously when moving.

The housing 20 includes a space for accommodating or housing the lens barrel assembly 10 and the magnetic member 30. The housing 20 may have various shapes, such as, but not limited to, a rectangular housing, a circular housing, etc.

The magnetic member 30 is a structure capable of generating a magnetic field, and may be a permanent magnet with various shapes, and of course, in some other embodiments, the magnetic member 30 may also be a magnetic member such as an electromagnet. The magnetic member 30 may be located at one side of the lens barrel assembly 10, and is more favorable for the coil 12 to be forced to move under the magnetic field of the magnetic member 30 after being powered on.

In some embodiments, referring to fig. 3 to 5, the voice coil motor 100 can be used as an auto-focusing motor, and the coil 12 is energized to drive the cylinder 11 and the lens 200 or the lens group 300 to move along a direction parallel to the optical axis of the lens 200 or the lens group 300 under the action of the magnetic field of the magnetic member 30, so as to focus the lens 200 or the lens group 300.

Of course, in some other embodiments, the voice coil motor 100 may also be used as an optical anti-shake motor, and the coil 12 is powered on to drive the cylinder 11 and the lens 200 or the lens group 300 to move in a direction perpendicular to the optical axis of the lens 200 or the lens group 300 under the action of the magnetic field of the magnetic member 30, or drive the cylinder 11 and the lens 200 or the lens group 300 to turn so as to tilt with respect to the optical axis of the lens 200 or the lens group 300, or drive the cylinder 11 and the lens 200 or the lens group 300 to rotate.

In some embodiments, a Driver IC (Driver IC) may be disposed on the camera circuit board 600 of the camera module 1000, and the coil 12 may be electrically connected to the Driver, so as to control the magnitude of the current passing through the coil 12 through the Driver, and further control the moving distance between the barrel 11 and the lens 200 or the lens group 300.

Optionally, a hall sensor may be disposed on the camera circuit board 600 or the voice coil motor 100 of the camera module 1000, the hall sensor may be electrically connected to a driver, the driver may detect a displacement of the barrel 11 and the lens 200 or the lens group 300 through a change of a magnetic field, and transmit information of the displacement to the driver, so that the driver may calculate a displacement to be compensated according to the received displacement, and then control a magnitude of a current passing through the coil 12 to control movement of the barrel 11 and the lens 200 or the lens group 300.

In some embodiments, referring to fig. 5, the vcm 100 may further include an elastic structure 40, where the elastic structure 40 refers to a structural member capable of generating elastic deformation, and may be an elastic structure with various shapes, such as an elastic sheet, an elastic bracket, a spring, and the like, but not limited thereto. The barrel 11 can be connected with the shell 20 through the elastic structure 40, the elastic structure 40 not only can play a role of supporting the barrel 11, but also the elastic structure 40 can elastically deform when the barrel 11 moves so as to balance the driving force applied to the barrel 11 and facilitate the stable movement of the barrel 11. The number of the elastic structures 40 can be one or more, and can be specifically set according to actual needs.

In some embodiments, referring to fig. 5, the housing 20 may include a base 21 and a support 22, and the support 22 is disposed on the base 21. The support member 22 is hollow inside and can be used for accommodating the lens barrel assembly 10 and the magnetic member 30. The support 22 may be a structure of various shapes, for example, a cylindrical structure, a frame structure, or the like. The cylinder 11 may be connected to the base 21 or the support 22 through the elastic structure 40, or connected to the base 21 and the support 22 through a plurality of elastic structures 40, respectively.

Optionally, referring to fig. 3 to 5, a through hole may be formed in the base 21 so that the light collected by the lens 200 or the lens assembly 300 passes through the through hole and is projected onto the image sensor 500. The camera circuit board 600 may be coupled to the base 21, and the image sensor 500 is located at the through hole of the base 21.

Of course, the structure of the housing 20 is not limited thereto, and in other embodiments, the housing 20 may not be provided with the base 21, but only with the support 22, as long as the lens barrel assembly 10 and the magnetic member 30 can be placed or accommodated.

Next, the lens barrel assembly 10 provided in the embodiment of the present application will be further described.

Referring to fig. 6 and 7, fig. 6 is a schematic structural diagram of a lens barrel assembly 10 according to some embodiments of the present application, and fig. 7 is a schematic cross-sectional diagram of the lens barrel assembly 10 shown in fig. 6. The lens barrel assembly 10 is applied to the voice coil motor 100, the lens barrel assembly 10 includes a barrel 11 and a coil 12, wherein:

the tubular body 11 is a tubular structure having a substantially cylindrical shape, and may have a cylindrical structure, a square tubular structure, or the like, or may have another tubular structure having an irregular shape. The cylinder 11 is an insulating cylinder 11, that is, a cylinder made of an insulating material, wherein the insulating material may be a variety of insulating materials, such as, but not limited to, plastic, polymer material, etc. The cylinder 11 is used to carry the lens 200 or the lens group 300 of the camera module 1000.

The coil 12 is electrically conductive and is used to drive the cylinder 11 to move under the magnetic field of the magnetic member 30 of the vcm 100 after being energized. The number of the coils 12 may be one or more, and may be set according to needs.

The coil 12 is embedded into the barrel 11, so that the coil 12 and the barrel 11 form an integrated structure, that is, the coil 12 is at least partially embedded into the barrel 11 and tightly combined with the material of the barrel 11, thereby forming an integrated structure, which is different from the structure that the coil 12 is wound or adhered on the surface of the barrel 11; embedding is also understood to mean embedding or embedding. The coil 12 may be partially embedded or fully embedded in the barrel 11.

As can be seen from the above, in the lens barrel assembly 10 provided in the embodiment of the present application, since the coil 12 is embedded in the barrel 11 to form an integrated structure with the barrel 11, compared with the way that the coil 12 is wound or adhered outside the barrel 11, the size of the coil 12 at least partially coincides with the size of the barrel 11, which can reduce the size except the size of the barrel 11 due to the volume occupation of the coil 12, that is, the external size or width of the whole formed by the barrel 11 and the coil 12 can be reduced, which is further beneficial to reducing the size or width of the voice coil motor 100, and improves the space utilization rate, thereby being beneficial to reducing the obstruction caused by the space limitation in the structural design process of the camera module 1000. Meanwhile, a supporting structure (such as a flange structure and a boss structure) for supporting the winding of the coil 12 is not required to be arranged on the barrel 11, and the supporting structure can be directly embedded into the barrel 11, so that the space of the supporting structure can be saved, and the overall external size formed by the barrel 11 and the coil 12 is further reduced. Because the cylinder 11 is an insulating cylinder 11, the interaction between the coil 12 embedded in the cylinder 11 and the magnetic field of the magnetic part 30 is not easily interfered, the magnetic field generated after the coil 12 is electrified can not be shielded and interfered, and the normal work of the coil 12 is facilitated.

In addition, the coil 12 is embedded in the barrel 11 to form an integrated structure with the barrel 11, and compared with the mode that the coil 12 is wound or adhered to the outside of the barrel 11, foreign matters such as dust and the like are not generated in the process of winding the coil by a lead wire around the barrel 11, and the foreign matters such as dust and the like generated by collision or friction between the coil 12 and other components of the voice coil motor 100 due to winding the coil 12 around the outside of the barrel 11 can be reduced, so that the accumulation of the foreign matters such as dust and the like is effectively reduced, and the imaging quality of the camera module 1000 is improved; moreover, the possibility of failure of the coil 12 due to impact or friction with other components of the voice coil motor 100 caused by winding the coil around the outside of the cylinder 11 can be reduced, and mechanical reliability can be improved, which is advantageous for improving reliability and stability of the voice coil motor 100.

In some embodiments, referring to fig. 7, the coil 12 and the barrel 11 are an injection-molded integral structure; that is, the cylindrical body 11 is molded by injection molding, and the coil 12 is embedded in the cylindrical body 11 as an insert or an embedded part. For example, before the injection molding of the cylinder 11, the coil 12 is embedded in the injection mold, and then the cylinder 11 is formed by injection molding in the injection mold, so that the coil 12 and the cylinder 11 can be integrated.

Compared with other modes of embedding the coil 12 into the barrel body 11, the mode of injection molding is adopted, so that the processing and the manufacturing are convenient, and the assembly process can be simplified; and the lens cone component 10 with the injection molding integrated structure can enable the material combination of the coil 12 and the cylinder body 11 to be more compact, and the material of the cylinder body 11 can be fully contacted with the surface of the coil 12, thereby being beneficial to improving the structural strength of the lens cone component 10.

It should be noted that the coil 12 is not limited to be embedded in the barrel 11 by injection molding.

Alternatively, in some other embodiments, the coil 12 may be embedded in the barrel 11 by heat-melting the coil 12. For example, the cylindrical body 11 may be partially heat-fused, and the coil 12 may be embedded or pressed into the cylindrical body 11 to form an integral structure with the cylindrical body 11; illustratively, the coil 12 may be embedded in the barrel 11 using an ultrasonic plastic welding process.

Alternatively, in some other embodiments, the coil 12 may be formed on the cylinder 11 by electroplating or etching.

In some embodiments, referring to fig. 6 and 7, the coil 12 is located between the outer sidewall 114 of the barrel 11 and the axis L of the barrel 11. Wherein, the outer side wall 114 of the cylinder 11 can be understood as the circumferential outer surface of the cylinder 11; the axis L of the cylinder 11 is the center line of the cylinder 11, and the axis L is substantially parallel to the optical axis of the lens 200 or the lens group 300.

With such an arrangement, the coil 12 may not be exposed out of the outer sidewall 114 of the barrel 11, that is, the coil 12 may be located inside the outer sidewall 114 of the barrel 11 without being exposed out, so as to further reduce the size of the coil 12 except the size of the barrel 11, that is, the external size of the whole body formed by the barrel 11 and the coil 12, which is favorable for further reducing the size of the voice coil motor 100, thereby further reducing the obstruction caused by the space limitation in the structural design process of the camera module 1000. In addition, the coil 12 can be protected by the outer sidewall 114 of the barrel 11 during the moving process, so that even if the barrel 11 collides or rubs against other components of the voice coil motor 100, the coil 12 is not easily damaged, and the reliability of the lens barrel assembly 10 can be effectively improved, thereby further improving the reliability and stability of the voice coil motor 100. Further, the coil 12 is protected by the outer wall 114 of the cylindrical body 11, and therefore, foreign matters such as dust are not accumulated or hidden, and the image quality can be further improved.

It should be understood that, since the coil 12 needs to be electrically connected to an external structure to conduct current, the lead terminals (e.g., the first lead terminal 1201 and the second lead terminal 1202) of the coil 12 or the conductive member connected to the lead terminals of the coil 12 should be allowed to be exposed out of the barrel 11, so as to facilitate the coil 12 to conduct current.

Optionally, referring to fig. 7, the coil 12 is located between the outer sidewall 114 of the barrel 11 and the inner sidewall 115 of the barrel 11. Wherein, the inner side wall 115 of the cylinder 11 can be understood as the circumferential inner surface of the cylinder 11.

With such an arrangement, the coil 12 may not be exposed on the outer sidewall 114 of the barrel 11 nor on the inner sidewall 115 of the barrel 11, the coil 12 may be completely embedded in the barrel 11, the size of the coil 12 may completely coincide with the size of the barrel 11, the size of the whole body formed by the barrel 11 and the coil 12 may be reduced to the maximum, and the inner space of the barrel 11 may not be interfered to accommodate the lens 200 or the lens group 300.

It should be noted that, in some other embodiments, a part of the coil 12 may be embedded in the barrel 11, and another part of the coil 12 is exposed out of the outer sidewall 114 or the inner sidewall 115 of the barrel 11 (it may be that the coil 12 extends to the outside of the barrel 11, or it may be that the surface of the coil 12 is substantially flush with the outer sidewall 114 or the inner sidewall 115 of the barrel 11 and does not extend to the outside of the barrel 11).

In some embodiments, referring to fig. 6 and 7, coil 12 is a wire-wound coil; that is, the coil 12 has a winding structure formed by winding or winding a wire, and may have a circular shape, an elliptical shape, a polygonal shape, or the like, but is not limited thereto.

With such an arrangement, compared to a wire-wound coil formed by etching or plating, the wire-wound coil can form a larger magnetic force after being energized, which is more beneficial for the coil 12 to drive the barrel 11 and the lens 200 or the lens group 300 to move.

The coil 12 is not limited to a wire-wound coil. Optionally, in some other embodiments, please refer to fig. 8, and fig. 8 illustrates a schematic cross-sectional view of the lens barrel assembly 10 according to some other embodiments of the present application. The coil 12 includes a coil circuit board 121 and an etched coil 122 etched and formed on the coil circuit board 121, and both the coil circuit board 121 and the etched coil 122 are embedded in the cylinder 11.

It is understood that the coil circuit board 121 may be a circuit board made of various materials as long as the etched coil 122 can be formed by etching. The etching coil 122 may be formed by using various etching methods, such as wet etching (wet etching) or dry etching (dry etching).

Alternatively, the coil Circuit board 121 may be a Flexible Printed Circuit (FPC) to be capable of being flexibly bent or deformed so as to be wound around the axis L of the cylinder 11 and embedded in the cylinder 11.

Of course, in other embodiments, the coil circuit board 121 may also be a rigid circuit board, and can also be embedded in the barrel 11.

Alternatively, when the coil 12 and the barrel 11 are in an injection molding integral structure, the coil circuit board 121 and the etched coil 122 are embedded into the barrel 11 at the same time by injection molding, that is, the etched and molded coil 12 is embedded into the barrel 11.

Alternatively, when the etched coil 122 needs to be completely embedded in the barrel 11, the etched coil 122 may be electrically connected to a conductive member (e.g., a conducting wire, a conducting sheet, a conducting pillar, etc.) in advance before the etched coil 122 is embedded in the barrel 11, so as to facilitate the etched coil 122 to be electrically connected to an external element (e.g., the camera circuit board 600, a driver) through the conductive member, thereby connecting the current. When the etched coil 122 is partially exposed out of the barrel 11, after the etched coil 122 is embedded in the barrel 11, the etched coil 122 is electrically connected to an external element through a conductive member or a conductive adhesive, so as to connect the current.

In some embodiments, referring to fig. 6-8, the coil 12 is annular, and the coil 12 surrounds the axis L of the barrel 11.

It is understood that the coil 12 is annular, meaning that the coil 12 is substantially annular, and may be circular, or may be polygonal or elliptical in shape approximating a circle. The coil 12 surrounds the axis L of the cylinder 11, which means that the coil 12 is located at the periphery of the axis L of the cylinder 11, but not specifically, the axis of the coil 12 completely coincides with the axis L of the cylinder 11, the axis of the coil 12 may have a certain distance from the axis L of the cylinder 11, and the axis of the coil 12 may be inclined to the axis L of the cylinder 11.

With such an arrangement, the coil 12 can be distributed along the circumferential direction of the cylinder 11, and compared with the situation that the coil is only arranged at a local part of the cylinder 11, the size of the coil 12 can be shared along the circumferential direction of the cylinder 11, so that the coil 12 can be embedded into the cylinder 11 under the condition that the wall thickness of the cylinder 11 is not increased, the number of turns of the coil 12 can be properly increased to increase the magnetic strength generated after the energization, and the cylinder 11 and the lens 200 or the lens group 300 can be driven to move more conveniently.

In addition, the coil 12 is disposed around the axis L of the cylinder 11, so that the cylinder 11 can be driven to move substantially in a direction parallel to the optical axis of the lens 200 or the lens group 300 under the action of the magnetic field of the magnetic member 30 of the voice coil motor 100 after the coil 12 is energized, thereby facilitating the focusing of the lens 200 or the lens group 300.

Optionally, referring to fig. 7, the axis of the coil 12 may coincide with or be parallel to the axis L of the cylinder 11, which is more beneficial for the coil 12 to drive the cylinder 11 to move along the direction parallel to the optical axis of the lens 200 or the lens group 300, and is beneficial for the lens 200 or the lens group 300 to focus.

It should be noted that the coil 12 is not limited to being disposed around the axis L of the cylinder 11. Optionally, in some other embodiments, please refer to fig. 9, and fig. 9 shows a schematic cross-sectional view of the lens barrel assembly 10 according to some other embodiments of the present application. The coil 12 is disposed about a centerline m that is perpendicular to the axis L of the barrel 11. In this case, the coil 12 can be used to drive the cylinder 11 and the lens 200 or the lens group 300 to move in a direction perpendicular to the optical axis of the lens 200 or the lens group 300, so as to achieve the optical anti-shake function.

Referring to fig. 1, in a voice coil motor 1 in the related art, a motor coil 04 is wound around a periphery of a carrier 03, and a lens barrel of a lens assembly 2 of a camera module is disposed on the carrier 03, so that two components, namely the carrier 03 and the lens barrel, exist between the motor coil 04 and a lens, and a radial dimension of an integral formed by assembling the lens assembly 2 and the carrier 03 is affected by a dimension of the carrier 03, a dimension of the lens barrel, and an assembling gap between the carrier 03 and the lens barrel, resulting in a larger radial dimension; in addition, the lens barrel and the carrier 03 need to be assembled and connected, so that not only a connecting structure for connecting the lens barrel and the carrier but also an assembling process need to be carried out, which affects the production efficiency and the manufacturing cost.

Based on this, in order to further reduce the size of the voice coil motor 100 and simplify the structure, in some embodiments, please refer to fig. 3 and fig. 7 to 9, the barrel 11 is a lens barrel, and the lens barrel includes an accommodating space 1101 for accommodating the lens 200.

With this arrangement, the lens 200 of the camera module 1000 can be directly accommodated in the accommodating space 1101 of the barrel 11, so that a carrier for carrying the lens barrel does not need to be separately arranged outside the lens barrel, the number of the structural members is reduced, the size of the carrier and the assembly gap between the carrier and the lens barrel are omitted, and the overall external size or width formed by the barrel 11 and the coil 12 can be effectively reduced. In addition, because the carriers are reduced, the assembly process can be saved, the structure can be simplified, the production efficiency can be improved, and the manufacturing cost can be reduced.

Alternatively, referring to fig. 3 and fig. 7 to 9, a step structure may be disposed inside the barrel 11 for mounting the plurality of lenses 200.

Of course, in other embodiments, please refer to fig. 4 and 10, and fig. 10 shows a schematic cross-sectional view of the lens barrel assembly 10 provided in other embodiments of the present application. The cylinder 11 is a carrier for carrying the lens barrel 310 of the lens group 300, and the lens barrel 310 is for accommodating the lens 200 of the lens group 300. It is understood that the barrel 11 generally needs to be provided with a connection structure for connecting with the lens barrel 310, such as, but not limited to, an internal thread 113 for screwing with an external thread of the lens barrel 310, and a snap structure, a clamping structure, etc.

In some embodiments, please refer to fig. 8 to 11, fig. 11 shows a cross-sectional view of the lens barrel assembly 10 according to another embodiment of the present application, in which the lens barrel assembly 10 further includes a first elastic member 13 and a second elastic member 14, the coil 12 includes a first wire outlet 1201 and a second wire outlet 1202, the first wire outlet 1201 is electrically connected to the first elastic member 13, and the second wire outlet 1202 is electrically connected to the second elastic member 14.

It is understood that the first outlet end 1201 and the second outlet end 1202 can be considered as two pole ends of the coil 12. For example, referring to fig. 7 and 9 to 11, when the coil 12 is a wire-wound coil, the first wire outlet 1201 and the second wire outlet 1202 are two ends of a wire forming the coil 12. For example, referring to fig. 8, when the coil 12 includes the etched coil 122, the first wire outlet 1201 and the second wire outlet 1202 are two ends of a wire forming the etched coil 122.

The first outlet end 1201 may be directly electrically connected to the first elastic member 13 (this is exemplarily shown in fig. 11), or the first outlet end 1201 may be electrically connected to the first elastic member 13 through an intermediate conductive member (this is exemplarily shown in fig. 8 to 10). Similarly, the second outlet end 1202 may be directly electrically connected to the second elastic member 14 (this is exemplarily shown in fig. 11), and the second outlet end 1202 may also be electrically connected to the second elastic member 14 through an intermediate conductive member (this is exemplarily shown in fig. 8 to 10).

It should be understood that, since the first outlet 1201 is electrically connected to the first elastic member 13 and the second outlet 1202 is electrically connected to the second elastic member 14, the first elastic member 13 and the second elastic member 14 are both conductive conductors, such as metal elastic members. The first elastic element 13 and the second elastic element 14 are both elastically deformable structural elements, such as, but not limited to, a spring sheet, an elastic bracket, a spring, etc.

With such an arrangement, the two electrode ends of the coil 12 can be respectively led out through the first elastic element 13 and the second elastic element 14, so that the coil 12 can be electrically connected with external elements (such as the camera circuit board 600 and a driver) through the first elastic element 13 and the second elastic element 14, the coil 12 can be conveniently connected with current, and the connection with the external elements through conducting elements such as wires is not needed, so that the coil 12 cannot be failed due to external force influence caused by the fact that the conducting elements such as wires extend to the outside when moving, and the reliability of the coil 12 when moving can be improved.

In addition, the cylinder 11 may be connected to the casing 20 of the voice coil motor 100 through the first elastic member 13 and the second elastic member 14, and the first elastic member 13 and the second elastic member 14 may function to support or carry the cylinder 11 and the coil 12, so that the cylinder 11 is movably disposed on the casing 20; when the coil 12 drives the cylinder 11 to move, the first elastic member 13 and the second elastic member 14 can elastically deform to balance the driving force applied by the coil 12 on the cylinder 11, which is beneficial to the smooth movement of the cylinder 11.

Alternatively, the first elastic member 13 and the second elastic member 14 may be electrically connected to an external element through a metal insert (e.g., a metal insert embedded in the housing 20 of the voice coil motor 100), a conductive adhesive, a conductive wire, or other conductive structure, so as to allow the coil 12 to conduct current.

Of course, the coil 12 is not necessarily electrically connected to the external element through the first elastic member 13 and the second elastic member 14. In other embodiments, the coil 12 may also be electrically connected to an external component through a wire, a metal member, or other conductive structures, and the coil 12 may also be directly electrically connected to the external component through the first outlet 1201 and the second outlet 1202.

Optionally, in some embodiments, referring to fig. 8 to 10, the lens barrel assembly 10 further includes a first conductive member 15 and a second conductive member 16, the first outlet terminal 1201 is electrically connected to the first elastic member 13 through the first conductive member 15, and the second outlet terminal 1202 is electrically connected to the second elastic member 14 through the second conductive member 16. The first outlet end 1201 and the second outlet end 1202 are both embedded in the barrel 11.

It is understood that the first conductive member 15 and the second conductive member 16 are both conductive conductors, such as conductors made of metal materials. The first and second

conductive members

15 and 16 may have various shapes such as, but not limited to, a sheet structure, a pillar structure, a plate structure, and the like.

It should be understood that the first outlet end 1201 and the second outlet end 1202 are embedded in the barrel 11, which means that the first outlet end 1201 and the second outlet end 1202 are embedded in the barrel 11 without being exposed, and can be embedded in the barrel 11 together with the coil 12 when the coil 12 is embedded in the barrel 11.

With such an arrangement, since the first wire outlet end 1201 and the second wire outlet end 1202 are both embedded in the barrel 11, the first wire outlet end 1201 is electrically connected to the first elastic member 13 through the first conductive member 15, and the second wire outlet end 1202 is electrically connected to the second elastic member 14 through the second conductive member 16, the first wire outlet end 1201 and the second wire outlet end 1202 can not only be protected by the barrel 11 and are not easily affected by other external components, so as to improve the safety and reliability, but also can be electrically connected to the first elastic member 13 and the second elastic member 14. Moreover, the first outlet terminal 1201 is indirectly connected to the first elastic member 13 by using the first conductive member 15, and the second outlet terminal 1202 is indirectly connected to the second elastic member 14 by using the second conductive member 16, so that the connection between the first outlet terminal 1201 and the first elastic member 13 and the connection between the second outlet terminal 1202 and the second elastic member 14 have higher flexibility than the direct connection.

It should be noted that, the first wire outlet 1201 and the first conductive member 15, and the first conductive member 15 and the first elastic member 13 may be electrically connected in various manners, such as welding, plugging, clamping, connecting by conductive adhesive, and the like, but not limited thereto. Similarly, the second outlet end 1202 and the second conductive member 16, and the second conductive member 16 and the second elastic member 14 can be electrically connected by various methods, such as welding, plugging, clipping, connecting by conductive adhesive, etc., but not limited thereto.

Alternatively, referring to fig. 8 to 10, the first conductive member 15 and the second conductive member 16 are embedded in the barrel 11. It is understood that the first conductive member 15 may be partially or completely embedded in the barrel 11, and the second conductive member 16 may be partially or completely embedded in the barrel 11; fig. 9 and 10 exemplarily show a case where the first conductive member 15 and the second conductive member 16 are partially embedded in the barrel 11 and partially extend to the outside of the barrel 11; fig. 8 illustrates a case where the first conductive member 15 and the second conductive member 16 are entirely embedded in the barrel 11.

With such a configuration, compared to the case that the first conductive member 15 and the second conductive member 16 are completely located outside the barrel 11, the first conductive member 15 and the second conductive member 16 are embedded in the barrel 11, and are not easily damaged when being subjected to an external force, and are not easily separated from the first outlet terminal 1201 and the second outlet terminal 1202, so that reliability and safety of the connection between the first conductive member 15 and the second conductive member 16 and the first outlet terminal 1201 and the second outlet terminal 1202 can be improved, and further reliability of the vcm 100 can be improved.

Of course, in other embodiments, only the first conductive member 15 may be embedded in the barrel 11, or only the second conductive member 16 may be embedded in the barrel 11.

In other embodiments, referring to fig. 12, fig. 12 is a schematic cross-sectional view of a lens barrel assembly 10 according to other embodiments of the present application. In the case that the first conductive member 15 and the second conductive member 16 are completely located outside the barrel body 11, the first outlet end 1201 and the second outlet end 1202 may be located on the surface of the barrel body 11 and do not extend to the outside of the barrel body 11, and may extend to the outside of the barrel body 11.

Alternatively, referring to fig. 8 to 10, and fig. 12 and 13, fig. 13 is a schematic cross-sectional view illustrating a lens barrel assembly 10 according to another embodiment of the present application. The barrel 11 includes a first supporting portion 111 and a second supporting portion 112, the first elastic member 13 and the first conductive member 15 are disposed on the first supporting portion 111, and the second elastic member 14 and the second conductive member 16 are disposed on the second supporting portion 112. The first wire outlet end 1201 is embedded in the first supporting portion 111, and the second wire outlet end 1202 is embedded in the second supporting portion 112.

It is understood that the first and second supporting

portions

111 and 112 are both a part of the cylinder 11. The first supporting portion 111 and the second supporting portion 112 may be structures of various shapes, for example, a protruding structure protruding outward away from the axis L of the cylinder 11 (this is exemplarily shown in fig. 8 to 10, and fig. 12), a stepped structure formed by notching an outer wall of the cylinder 11, an end portion of the cylinder 11, and the like, but are not limited thereto.

With such an arrangement, the first supporting portion 111 can serve as a platform for connecting and matching the first elastic component 13, the first conductive component 15 and the first wire outlet end 1201, and the second supporting portion 112 can serve as a platform for connecting and matching the second elastic component 14, the second conductive component 16 and the second wire outlet end 1202, so that the first wire outlet end 1201 and the second wire outlet end 1202 are not required to be exposed out of the barrel 11 under the conditions of facilitating the connection of the first elastic component 13 and the second elastic component 14 with the barrel 11 and facilitating the connection of the first conductive component 15 and the second conductive component 16 with the barrel 11, and convenience and structural reliability of connection of each component with the barrel 11 can be improved.

Alternatively, referring to fig. 8 to 10 and 12 and 13, the first supporting portion 111 and the second supporting portion 112 may be located at a same end of the barrel 11 (fig. 8 to 10 and 12 show a case where the first supporting portion 111 and the second supporting portion 112 are located at a lower end of the barrel 11, and fig. 13 shows a case where the first supporting portion 111 and the second supporting portion 112 are located at an upper end of the barrel 11), the first elastic member 13 and the second elastic member 14 may be located at a same end of the barrel 11, and the first outlet terminal 1201 and the second outlet terminal 1202 may be connected to the first elastic member 13 and the second elastic member 14 at the same end of the barrel 11, so that the structure is more neat and compact than a case where the first outlet terminal 1201 and the second outlet terminal 1202 are located at opposite ends of the barrel 11, respectively, and the first elastic member 13 and the second elastic member 14 are electrically connected to an external element.

Of course, in other embodiments, the first supporting portion 111 and the second supporting portion 112 may be located at two opposite ends of the barrel 11.

Alternatively, in some embodiments, please refer to fig. 14 and 15, fig. 14 shows a schematic cross-sectional view of the lens barrel assembly 10 provided in other embodiments of the present application, and fig. 15 shows a schematic cross-sectional view of the lens barrel assembly 10 provided in still other embodiments of the present application. The first elastic member 13 includes a first portion 131, the first portion 131 is electrically connected to the first outlet 1201, and both the first portion 131 and the first outlet 1201 are embedded in the barrel 11. The second elastic element 14 includes a second portion 141, the second portion 141 is electrically connected to the second wire-out terminal 1202, and both the second portion 141 and the second wire-out terminal 1202 are embedded in the barrel 11.

It is understood that the first portion 131 is a portion of the first elastic member 13 for connecting with the first outlet 1201, and may be in various shapes, such as, but not limited to, a sheet shape, a column shape, etc., as part of the first elastic member 13. Similarly, the second portion 141 is a portion of the second elastic member 14 for connecting with the second outlet terminal 1202, and is a portion of the second elastic member 14, and may have various shapes, but is not limited thereto.

With such an arrangement, the part of the first elastic member 13 connected with the first wire outlet end 1201 and the part of the second elastic member 14 connected with the second wire outlet end 1202 can be embedded into the barrel 11, and the barrel 11 can protect the joint, so that the connection reliability can be effectively improved, and the failure risk can be reduced. Moreover, the first portion 131 is embedded in the barrel 11, so that the reliability and convenience of connecting the first elastic member 13 with the barrel 11 can be improved, a fixing structure is not required to be additionally arranged for fixing the first elastic member 13, and the structure and the assembly process can be simplified; similarly, the second portion 141 is inserted into the barrel 11, so that the reliability and convenience of connecting the second elastic member 14 with the barrel 11 can be improved, and the second elastic member 14 can be fixed without an additional fixing structure, thereby simplifying the structure and the assembling process.

Optionally, referring to fig. 14, the first portion 131 may be directly electrically connected to the first outlet 1201, for example, by soldering, or by using a conductive adhesive, so as to save intermediate components, reduce the number of processing steps, and simplify the structure and the assembly process. Referring to fig. 15, the first portion 131 may also be electrically connected to the first wire outlet 1201 through the first conductive member 15, and when the first portion 131 is embedded in the barrel 11, the first conductive member 15 is also embedded in the barrel 11.

Similarly, referring to fig. 14, the second portion 141 can be directly electrically connected to the second outlet terminal 1202, such as by soldering or connecting through a conductive member, so as to save intermediate components, reduce the number of manufacturing processes, and simplify the structure and the assembly process. Referring to fig. 15, the second portion 141 may also be electrically connected to the second wire outlet end 1202 through the second conductive member 16, and when the second portion 141 is embedded in the barrel 11, the second conductive member 16 is also embedded in the barrel 11.

It should be noted that in other embodiments, only the first portion 131 may be embedded in the barrel 11, and the second portion 141 may not be embedded in the barrel 11; alternatively, only the second portion 141 is fitted into the cylinder 11, and the first portion 131 is not fitted into the cylinder 11.

In the above embodiment, the case where the first outlet terminal 1201 and the second outlet terminal 1202 are fitted into the barrel 11 is described. However, in other embodiments, at least one of the first outlet end 1201 and the second outlet end 1202 may be exposed outside the barrel 11.

For example, the first outlet end 1201 may extend to the outside of the barrel 11 and electrically connect with the first elastic member 13, as shown in fig. 11. The first outlet end 1201 may also be located on the surface of the barrel 11 without extending to the outside of the barrel 11, such as shown in fig. 12.

Similarly, the second outlet terminal 1202 can extend to the outside of the barrel 11 and electrically connect with the second elastic member 14, as shown in fig. 11. The second outlet end 1202 may also be located on the surface of the barrel 11 without extending to the outside of the barrel 11, such as shown in fig. 12.

The embodiment of the present application further provides a manufacturing method of the lens barrel assembly, which is used for manufacturing the lens barrel assembly 10 of any of the above embodiments. Referring to fig. 16, fig. 16 is a schematic flow chart illustrating a method for manufacturing a lens barrel assembly according to some embodiments of the present disclosure. The manufacturing method of the lens barrel assembly includes:

s100: a coil 12 is provided.

It is understood that the coil 12 may be the coil 12 described in any of the above embodiments and will not be described in detail herein.

S200: the coil 12 is inserted into the cylinder 11 so that the coil 12 and the cylinder 11 form an integrated structure.

It will be appreciated that the coil 12 may be embedded in the barrel 11 at the same time as the barrel 11 is being molded; the coil 12 may be embedded in the cylindrical body 11 after the cylindrical body 11 is molded.

In the lens barrel assembly 10 manufactured by the method for manufacturing a lens barrel assembly according to the embodiment of the present invention, since the coil 12 is embedded in the barrel body 11 to form an integral structure with the barrel body 11, compared with a method for winding or adhering the coil 12 to the outside of the barrel body 11, the method not only can reduce the external size or width of the whole body formed by the barrel body 11 and the coil 12, and further is beneficial to reducing the size or width of the voice coil motor 100, but also is convenient to process and manufacture, and is beneficial to simplifying the manufacturing process. Meanwhile, a support structure (such as a flange structure, a boss structure, etc.) for supporting the winding of the coil 12 does not need to be arranged on the barrel 11, so that the space of the support structure is saved, and the external size of the whole formed by the barrel 11 and the coil 12 can be further reduced.

In some embodiments, step S100: embedding the coil 12 into the barrel 11 so that the coil 12 and the barrel 11 form an integral structure, includes:

s110: and an injection molding process is adopted, so that the coil 12 and the barrel 11 form an injection molding integrated structure.

It will be appreciated that the injection moulding process may be an injection moulding process or an injection moulding die casting process, i.e. the coil 12 is embedded in the barrel 11 at the same time as the barrel 11 is being moulded.

Compared with other methods of assembling the formed coil 12 and the barrel body 11, the injection molding process is adopted to enable the coil 12 and the barrel body 11 to form an injection molding integrated structure, so that the manufacturing is convenient, the assembly process can be simplified, the method is particularly suitable for batch production, the manufacturing cost can be effectively reduced, and the manufacturing efficiency can be improved; in the lens barrel assembly 10 with the injection molding integrated structure, the material of the barrel body 11 can be fully contacted with the surface of the coil 12, so that the coil 12 and the barrel body 11 are combined more tightly, and the structural strength of the lens barrel assembly 10 is improved.

Alternatively, step S110: adopt injection molding process, make coil 12 and barrel 11 form the integral type structure of moulding plastics, include:

s111: the coil 12 is placed into the cavity of an injection mold.

It will be appreciated that the injection mold may be designed according to the shape, size, etc. of the barrel 11 that is desired to be manufactured.

S112: and injecting the molten material into an injection mold.

It is understood that the molten material refers to the material for manufacturing the barrel 11 in a molten state, and may be a variety of plastics, and may be selected according to actual needs.

Alternatively, injection molding may be performed using an injection molding machine.

S113: the injection mold after injection is cooled and then demolded to obtain an integrated structure in which the coil 12 is embedded in the barrel 11.

In the above embodiment, the coil 12 is embedded in the barrel 11 by injection molding and die casting, which is convenient for processing and manufacturing, and can improve the processing and manufacturing efficiency.

In some embodiments, please refer to fig. 17, and fig. 17 is a flowchart illustrating a manufacturing method of a lens barrel assembly according to another embodiment of the present application. The coil 12 includes a first outlet terminal 1201 and a second outlet terminal 1202, and in step S200: before embedding the coil 12 into the barrel 11 so that the coil 12 and the barrel 11 form an integral structure, the manufacturing method further includes:

s101: a first elastic member 13 and a second elastic member 14 are provided.

It is understood that the first elastic member 13 and the second elastic member 14 may be the first elastic member 13 and the second elastic member 14 described in any of the above embodiments, and will not be described herein again.

S102: the first wire outlet 1201 is electrically connected to the first elastic member 13, and the second wire outlet 1202 is electrically connected to the second elastic member 14.

It is understood that the first outlet end 1201 may be directly electrically connected to the first elastic member 13, or the first outlet end 1201 may be electrically connected to the first elastic member 13 through an intermediate conductive member (e.g., the first conductive member 15); similarly, the second outlet end 1202 may be directly electrically connected to the second elastic member 14, or the second outlet end 1202 may be electrically connected to the second elastic member 14 through an intermediate conductive member (e.g., the second conductive member 16).

By electrically connecting the first wire outlet 1201 and the first elastic member 13 and electrically connecting the second wire outlet 1202 and the second elastic member 14 in advance before the coil 12 is inserted into the barrel 11, the first elastic member 13 and the second elastic member 14 do not need to be connected in the assembling process of the voice coil motor 100, the subsequent processing steps can be simplified, and the first elastic member 13 and the second elastic member 14 are not easily affected by the barrel 11 and other components when being connected in advance, so that the connection is more convenient. Furthermore, the first elastic member 13 and the second elastic member 14 are connected in advance, which is beneficial to embedding the first wire outlet end 1201 and the second wire outlet end 1202 into the barrel 11 without exposing the first wire outlet end and also beneficial to embedding a part of the first elastic member 13 and a part of the second elastic member 14 into the barrel 11, and can improve the reliability of the electrical connection between the first wire outlet end 1201 and the first elastic member 13, the reliability of the electrical connection between the second wire outlet end 1202 and the second elastic member 14, the reliability of the connection between the first elastic member 13 and the barrel 11, and the reliability of the connection between the second elastic member 14 and the barrel 11.

Alternatively, the first portion 131 and the first wire outlet 1201 of the first elastic member 13 may be embedded in the cylinder 11, and the second portion 141 and the second wire outlet 1202 of the second elastic member 14 may be embedded in the cylinder 11, so as to improve reliability. When the first outlet end 1201 is electrically connected to the first elastic member 13 through the first conductive member 15, the first conductive member 15 may be embedded in the barrel 11, and when the second outlet end 1202 is electrically connected to the second elastic member 14 through the second conductive member 16, the second conductive member 16 may be embedded in the barrel 11, so as to improve reliability.

Of course, in other embodiments, the first elastic member 13 and the second elastic member 14 may not be embedded in the barrel 11, but may be completely located outside the barrel 11. The first outlet end 1201 and the second outlet end 1202 may extend to the outside of the cylinder 11 without being inserted into the cylinder 11.

In other embodiments, please refer to fig. 18, and fig. 18 is a flowchart illustrating a method for manufacturing a lens barrel assembly according to other embodiments of the present application. The coil 12 includes a first outlet 1201 and a second outlet 1202, and in step S200: after inserting the coil 12 into the barrel 11 so that the coil 12 and the barrel 11 form an integral structure, the manufacturing method further includes:

s300: a first elastic member 13 and a second elastic member 14 are provided.

S400: the first outlet terminal 1201 is electrically connected to the first elastic member 13, and the second outlet terminal 1202 is electrically connected to the second elastic member 14.

In this embodiment, after the coil 12 is inserted into the cylinder 11, the first elastic member 13 and the second elastic member 14 are coupled.

Alternatively, the first outlet terminal 1201 and the second outlet terminal 1202 may be extended to the outside of the barrel 11 when the coil 12 is inserted into the barrel 11, so as to facilitate connection with the first elastic member 13 and the second elastic member 14.

Of course, in other embodiments, the first outlet end 1201 and the second outlet end 1202 may be inserted into the barrel 11 when the coil 12 is inserted into the barrel 11, and the barrel 11 may be processed to expose the first outlet end 1201 and the second outlet end 1202 out of the barrel 11 when the coil 12 needs to be connected to the first elastic member 13 and the second elastic member 14.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application.

Claims

1. A lens barrel assembly applied to a voice coil motor including a magnetic member, the lens barrel assembly comprising:

the cylinder body is an insulating cylinder body; and

2. The lens barrel assembly according to claim 1, wherein the coil and the barrel are of an injection-molded integral structure.

3. The lens barrel assembly according to claim 1, wherein the coil is located between an outer side wall of the barrel and an axis of the barrel.

4. The lens barrel assembly according to claim 3, wherein the coil is located between an outer side wall of the barrel and an inner side wall of the barrel.

5. The lens barrel assembly according to claim 1, wherein the coil is a wire-wound coil.

6. The lens barrel assembly according to claim 1, wherein the coil is annular and surrounds an axis of the barrel.

7. The lens barrel assembly according to claim 1, wherein the coil includes a coil circuit board and an etched coil etched formed on the coil circuit board, the coil circuit board and the etched coil being embedded in the barrel.

8. The lens barrel assembly according to claim 1, wherein the barrel body is a lens barrel including an accommodating space for accommodating a lens; or

9. The lens barrel assembly according to any one of claims 1 to 8, further comprising a first elastic member and a second elastic member, wherein the coil includes a first wire outlet end and a second wire outlet end, the first wire outlet end is electrically connected to the first elastic member, and the second wire outlet end is electrically connected to the second elastic member.

10. The lens barrel assembly according to claim 9, further comprising a first conductive member and a second conductive member, wherein the first outlet terminal is electrically connected to the first elastic member through the first conductive member, and the second outlet terminal is electrically connected to the second elastic member through the second conductive member; the first wire outlet end and the second wire outlet end are both embedded into the cylinder.

11. The lens barrel assembly according to claim 10, wherein the first conductive member is embedded in the barrel body; and/or the second conductive piece is embedded in the cylinder body.

12. The lens barrel assembly according to claim 10 or 11, wherein the barrel body includes a first support portion on which the first elastic member and the first conductive member are provided, and a second support portion on which the second elastic member and the second conductive member are provided; the first wire outlet end is embedded into the first supporting part, and the second wire outlet end is embedded into the second supporting part.

13. The lens barrel assembly according to claim 9, wherein the first elastic member includes a first portion electrically connected to the first outlet terminal, and both the first portion and the first outlet terminal are embedded in the barrel; and/or

14. A manufacturing method of a lens barrel assembly for manufacturing the lens barrel assembly according to any one of claims 1 to 13, the manufacturing method comprising:

providing a coil;

15. The method for manufacturing a lens barrel assembly according to claim 14, wherein said fitting the coil into the barrel body so that the coil and the barrel body form an integral structure, comprises:

16. The method for manufacturing a lens barrel assembly according to claim 14 or 15, wherein the coil includes a first outlet terminal and a second outlet terminal, and before said inserting the coil into the barrel body to form the coil and the barrel body into an integral structure, the method further comprises:

providing a first elastic member and a second elastic member;

and electrically connecting the first wire outlet end with the first elastic piece, and electrically connecting the second wire outlet end with the second elastic piece.

17. The method for manufacturing a lens barrel assembly according to claim 14 or 15, wherein the coil includes a first outlet terminal and a second outlet terminal, and after said inserting the coil into the barrel body to form the coil and the barrel body into an integral structure, the method further comprises:

providing a first elastic member and a second elastic member;

18. A voice coil motor, comprising:

a housing;

the magnetic part is arranged on the shell; and

the lens barrel assembly according to any one of claims 1 to 13, wherein the barrel is movably disposed on the housing, and the coil is energized to drive the barrel to move under the magnetic field of the magnetic member.

19. A camera module, characterized in that the camera module comprises the voice coil motor of claim 18;

20. A terminal device, characterized in that the terminal device comprises:

an apparatus main body; and

the camera module of claim 19, said camera module being disposed on said device body.