CN116774456A

CN116774456A - Lens module and electronic equipment

Info

Publication number: CN116774456A
Application number: CN202310730629.0A
Authority: CN
Inventors: 瞿佳佳
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2023-06-20
Filing date: 2023-06-20
Publication date: 2023-09-19

Abstract

The application discloses a lens module and an electronic device, wherein the lens module comprises: the movable part can move relative to the fixed part along a first direction and a second direction; the lens is arranged on the movable part; the magnetic component group is arranged on the fixing part; the first coil part is arranged on the movable part, the first coil part and the magnetic element group are correspondingly arranged along a third direction, and the third direction is perpendicular to a plane where the first direction and the second direction are located, wherein the first coil part and the magnetic element group drive the movable part to move along at least one direction of the first direction and the second direction under the condition that the first coil part is electrified.

Description

Lens module and electronic equipment

Technical Field

The application belongs to the technical field of electronic equipment, and particularly relates to a lens module and electronic equipment.

Background

In the related art, a suspension optical anti-shake (optical image stabilization, OIS) motor is generally square, and each side is configured with an electromagnetic drive, i.e. four sides are provided with magnets and coils, two opposite sides are driven in a group, and simultaneously, a magnetic thrust in the same direction is generated to drive the motor to move towards the X direction or the Y direction, so as to realize an anti-shake function. However, larger power consumption is generated in the moving process of the magnet, the suspension wire load is smaller, and the suspension wire is easy to break and shake-proof failure is easy to cause.

Disclosure of Invention

The application aims to provide a lens module and electronic equipment, which at least solve the problem of overlarge power consumption in the working process of a motor in the related technology.

In order to solve the technical problems, the application is realized as follows:

in a first aspect, an embodiment of the present application provides a lens module, including: the movable part can move relative to the fixed part along a first direction and a second direction; the lens is arranged on the movable part; the magnetic component group is arranged on the fixing part; the first coil part is arranged on the movable part, the first coil part and the magnetic element group are correspondingly arranged along a third direction, and the third direction is perpendicular to a plane where the first direction and the second direction are located, wherein the first coil part and the magnetic element group drive the movable part to move along at least one direction of the first direction and the second direction under the condition that the first coil part is electrified.

In a second aspect, an embodiment of the present application provides an electronic device, including: the lens module as claimed in any one of the first aspect.

In an embodiment of the application, the lens module includes a fixed portion, a movable portion, a lens, a magnetic element group and a first coil portion, wherein the movable portion can move relative to the fixed portion along a first direction and a second direction, the lens is arranged on the movable portion, the first coil portion is arranged on the movable portion, the magnetic element group is arranged on the fixed portion, and the first coil portion and the magnetic element group are correspondingly arranged along a third direction. The first coil part is arranged on the movable part, and the magnetic component group is arranged on the fixed part, so that the weight of the movable part is reduced, the power consumption is reduced, and the problem that the power consumption of the anti-shake function of the lens module is overlarge in the related art is solved. Meanwhile, as the magnetic component group is arranged on the fixing part, the peripheral magnetic devices cannot be interfered in the anti-shake process, and the distance between the magnetic devices can be reduced. In addition, the magnetic component group is fixed on the fixed part, the first coil part is arranged on the movable part, the structure is simple, the condition of suspension wire breakage in the related art can not occur, and the anti-shake reliability of the lens module is ensured.

Additional aspects and advantages of the application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the application.

Drawings

The foregoing and/or additional aspects and advantages of the application will become apparent and may be better understood from the following description of embodiments taken in conjunction with the accompanying drawings in which:

FIG. 1 is an exploded view of a lens module according to an embodiment of the present application;

fig. 2 is a schematic structural diagram of a lens module according to an embodiment of the application;

FIG. 3 is a cross-sectional view taken along line A-A of FIG. 2;

FIG. 4 is a cross-sectional view taken along line B-B of FIG. 2;

FIG. 5 is a cross-sectional view taken along line C-C of FIG. 2;

FIG. 6 is an enlarged view of the circle D in FIG. 3;

FIG. 7 is an exploded view of a part of the structure of a lens module according to an embodiment of the present application;

fig. 8 is an exploded and assembled structural schematic view of a bracket and a first coil part according to an embodiment of the present application;

FIG. 9 is a schematic diagram of an exploded and assembled configuration of a base and magnetic stack according to an embodiment of the present application;

FIG. 10 is a schematic diagram of the magnetic field effect of a first coil portion and magnetic element set according to an embodiment of the present application;

FIG. 11 is a schematic diagram illustrating an arrangement of lens modules according to an embodiment of the present application;

fig. 12 is a schematic block diagram of a lens module according to an embodiment of the present application.

Reference numerals:

100 lens module, 1 fixed part, 10 casing, 12 base, 120 terminal, 122 second metal inserts, 124 mounting groove, 2 movable part, 20 support, 200 first metal inserts, 202 magnetism suction piece, 204 recess, 22 carrier, 220 first shell fragment, 222 second shell fragment, 224 ring channel, 3 camera lens, 4 magnetism spare group, 40 first magnetism spare, 42 second magnetism spare, 5 first coil part, 50 first coil, 52 second coil, 6 second coil part, 7 conductive ball, 8 detection spare, 9 control.

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 like or similar elements throughout or elements having like or similar functionality. The embodiments described below by referring to the drawings are illustrative only and are not to be construed as limiting the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The features of the application "first", "second" and the like in the description and in the claims may be used for the explicit or implicit inclusion of one or more such features. In the description of the present application, unless otherwise indicated, the meaning of "a plurality" is two or more. Furthermore, the term "and/or" in the description and claims means at least one of the connected objects.

In the description of the present application, it should be understood that the orientation or positional relationship indicated by the terms "upper", "lower", etc. are based on the orientation or positional relationship shown in the drawings, are merely for convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element in question must have a specific orientation, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present application.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

A lens module and an electronic device according to an embodiment of the present application are described below with reference to fig. 1 to 12.

As shown in fig. 1, a lens module 100 according to some embodiments of the present application includes: a fixed portion 1 and a movable portion 2, the movable portion 2 being movable in at least a first direction and a second direction with respect to the fixed portion 1; a lens 3 provided in the movable portion 2; a magnetic element group 4 provided in the fixing portion 1; the first coil part 5 is arranged on the movable part 2, the first coil part 5 and the magnetic element group 4 are correspondingly arranged along a third direction, and the third direction is perpendicular to a plane where the first direction and the second direction are located, wherein under the condition that the first coil part 5 is electrified, the first coil part 5 and the magnetic element group 4 drive the movable part 2 to move along at least one direction of the first direction and the second direction.

In the embodiment of the present application, the lens module 100 includes a fixed portion 1, a movable portion 2, a lens 3, a magnetic element group 4, and a first coil portion 5, where the movable portion 2 can move along a first direction and a second direction relative to the fixed portion 1, the lens 3 is disposed on the movable portion 2, the first coil portion 5 is disposed on the movable portion 2, the magnetic element group 4 is disposed on the fixed portion 1, and the first coil portion 5 and the magnetic element group 4 are disposed correspondingly along a third direction, so that, when the first coil portion 5 is energized, a magnetic field generated by the first coil portion 5 interacts with a magnetic field generated by the magnetic element group 4, so that the movable portion 2 in which the first coil portion 5 is located moves relative to the fixed portion 1, that is, the movable portion 2 can move along the first direction and/or the second direction, thereby implementing an anti-shake function of the lens module 100. Wherein, the first coil part 5 is arranged on the movable part 2, and the magnetic component group 4 is arranged on the fixed part 1, so that the weight of the movable component is reduced, the power consumption is reduced, and the problem of overlarge power consumption of the anti-shake function of the lens module 100 in the related art is solved. Meanwhile, as the magnetic component group 4 is arranged on the fixing part 1, interference to peripheral magnetic devices in the anti-shake process is avoided, and the distance between the magnetic devices can be reduced. In addition, the magnetic component set 4 is fixed on the fixed part 1, the first coil part 5 is arranged on the movable part 2, the structure is simple, the condition of suspension wire breakage in the related art can not occur, and the anti-shake reliability of the lens module 100 is ensured.

As shown in fig. 1 and fig. 3, the first direction, the second direction and the third direction are different, so that at least anti-shake in two directions can be realized by the lens module 100 provided by the application, and shooting performance is improved.

Further, the third direction is perpendicular to the plane where the first direction and the second direction are located, and further, the first direction, the second direction and the third direction are perpendicular to each other.

In a specific application, the magnetic component set 4 includes a magnet assembly, and of course, the magnetic component set 4 may also be a magnetic structure such as an electromagnetic coil.

It can be understood that, when the lens module 100 shakes, in order to avoid the influence of the shake of the lens 3 on the shooting effect, the first coil part 5 can be controlled to be electrified, so that the first coil part 5 generates a magnetic field, and then under the action of the magnetic field generated by the first coil part 5 and the magnetic field generated by the magnetic element group 4, the first coil part 5 can be pushed to generate a pushing force so as to push the first coil part 5 and the movable part 2 where the first coil part 5 is located to move along the direction of the shaking force, so that the movable part 2 and the lens 3 on the movable part 2 move along the opposite direction of the shake, thereby realizing the anti-shake function of the lens module 100 and improving the shooting effect.

As shown in fig. 2 and 3, according to some embodiments of the present application, the lens module 100 further includes: the second coil part 6 is arranged on the movable part 2, the second coil part 6 is positioned in the space surrounded by the magnetic component group 4, and when the second coil part 6 is electrified, the second coil part 6 and the magnetic component group 4 drive the movable part 2 to move along the third direction.

In this embodiment, the lens module 100 further includes a second coil portion 6, the second coil portion 6 is disposed on the movable portion 2, and when the second coil portion 6 is energized, the magnetic field generated by the second coil portion 6 interacts with the magnetic field generated by the magnetic element group 4, so that the movable portion 2 can move along a third direction, and further, the lens 3 moves along the third direction, so as to implement a focusing function of the lens module 100.

The third direction is the axial direction of the lens 3, that is, the focusing function of the lens 3 can be achieved by the movement of the lens 3 in the third direction.

In the lens module 100 provided by the application, the first coil part 5 and the second coil part 6 are arranged on the movable part 2, and the first coil part 5 and the second coil part 6 share the same magnetic component group 4, so that the overall volume of the lens module 100 is reduced under the condition of reducing the overall power consumption of the lens module 100.

As shown in fig. 4, 5 and 6, according to some embodiments of the present application, the lens module 100 further includes: the conductive ball 7 is arranged between the movable part 2 and the fixed part 1, the conductive ball 7 is electrically connected with the movable part 2 and the fixed part 1, and the movable part 2 is movably connected with the fixed part 1 through the conductive ball 7.

In this embodiment, the lens module 100 further includes a conductive ball 7, where the conductive ball 7 is disposed between the movable portion 2 and the fixed portion 1, on one hand, the conductive ball 7 can implement the movable connection between the movable portion 2 and the fixed portion 1, so that the movable portion 2 can move along at least one of the first direction and the second direction relative to the fixed portion 1, on the other hand, the conductive ball 7 can also implement the electrical connection between the component on the movable portion 2 and the component on the fixed portion 1, for example, the conductive ball 7 can conduct the first coil portion 5 with the port on the fixed portion 1, thereby implementing the connection of the first coil portion 5, and reducing the wiring difficulty of the lens module 100.

It is understood that the conductive balls 7 are balls having a conductive function, and specifically, the conductive balls 7 may be conductive metal balls such as copper balls or iron balls.

As shown in fig. 5, according to some embodiments of the present application, the movable portion 2 is provided with a first metal insert 200, and the first coil portion 5 is electrically connected to the first metal insert 200; the fixing portion 1 is provided with a terminal 120 and a second metal insert 122, the second metal insert 122 is electrically connected with the terminal 120, the conductive ball 7 is electrically connected between the first metal insert 200 and the second metal insert 122, and the second coil portion 6 is connected with the second metal insert 122.

In this embodiment, the movable part 2 is provided with a first metal insert 200, and the fixed part 1 is provided with a second metal insert 122 and a terminal 120 electrically connected to the second metal insert 122. Wherein the first coil part 5 is electrically connected with the first metal insert 200, the conductive ball 7 is connected with the first metal insert 200 and the second metal insert 122, and the second coil part 6 is electrically connected with the second metal insert 122, so that the first coil part 5 is electrically connected to the terminal 120, and the second coil part 6 is electrically connected to the terminal 120, thereby realizing the energizing of the first coil part 5 and the second coil part 6.

In a specific application, the number of the second metal inserts 122 is a plurality, the plurality of second metal inserts 122 are arranged at intervals, the first coil part 5 is communicated with at least one of the plurality of second metal inserts 122 through the first metal insert 200, and the second coil part 6 is electrically connected to at least one of the second metal inserts 122 except for the second metal inserts 122 communicated with the first coil part 5, so that the respective control of the first coil part 5 and the second coil part 6 is realized.

It is understood that the terminal 120 is connected to a control part of the lens module 100, specifically, the control part includes a circuit board.

Further, the number of the conductive balls 7 is plural.

As shown in fig. 1, according to some embodiments of the present application, the fixing portion 1 is provided with a mounting groove 124, and the conductive ball 7 is movably disposed in the mounting groove 124.

In this embodiment, the fixing portion 1 is provided with the mounting groove 124, and the conductive ball 7 is mounted in the mounting groove 124, so that the limitation of the conductive ball 7 is achieved, and the reliability of the connection between the movable portion 2 and the fixing portion 1 is further ensured.

It will be appreciated that within the mounting groove 124, the conductive balls 7 are able to rotate.

Accordingly, a groove 204 is provided in the movable portion 2, and a part of the conductive ball 7 is provided in the groove 204 and a part is provided in the mounting groove 124.

As shown in fig. 1, 4 and 7, according to some embodiments of the present application, at least one magnetic attraction piece 202 is provided on the movable portion 2, and the magnetic attraction piece 202 is attracted to the magnetic element group 4, so that the movable portion 2 and the fixed portion 1 clamp the conductive balls 7.

In this embodiment, at least one magnetic attraction piece 202 is disposed on the movable portion 2, and the magnetic attraction piece 202 on the movable portion 2 is attracted to the magnetic component set 4 on the fixed portion 1, so that the movable portion 2 and the fixed portion 1 are tightly attached together, and then the conductive balls 7 between the two are clamped, thereby improving the reliability of the movable connection of the movable portion 2 and the fixed portion 1.

In a specific application, the magnetic attraction piece 202 on the movable portion 2 is disposed on a side of the movable portion 2 away from the fixed portion 1. Further, a limiting groove is formed in the movable portion 2, and the magnetic attraction piece 202 is arranged in the limiting groove. As shown in fig. 1, 3 and 8, according to some embodiments of the present application, the movable part 2 includes: the support 20 is movably connected with the fixing part 1, the first coil part 5 is arranged on the support 20, the first coil part 5 and the magnetic element group 4 can drive the support 20 to move along at least one of a first direction and a second direction, and the support 20 is movably connected with the fixing part 1 through the conductive ball 7; the carrier 22 is connected with the bracket 20, the lens 3 and the second coil part 6 are arranged on the carrier 22, and the second coil part 6 and the magnetic element group 4 can drive the carrier 22 to move along the third direction.

In this embodiment, the movable portion 2 includes a support 20 and a carrier 22, the support 20 is movably connected with the fixed portion 1 through the conductive balls 7, the lens 3 is disposed on the carrier 22, and the carrier 22 is connected with the support 20, so that the support 20, the carrier 22 and the lens 3 on the carrier 22 can realize anti-shake in at least one of the first direction and the second direction under the action of the first coil portion 5 and the magnetic element group 4 on the support 20. In addition, the second coil portion 6 is disposed on the carrier 22, and under the action of the magnetic field of the magnetic element set 4 and the magnetic field of the second coil portion 6, the second coil portion 6 drives the carrier 22 to move along the third direction relative to the fixing portion 1 under the condition that the second coil portion 6 is electrified, so as to further realize the focusing function of the lens 3.

As shown in fig. 3, 9 and 10, according to some embodiments of the present application, the fixing part 1 includes: a housing 10; the base 12 is connected with the shell 10 and surrounds the cavity, the support 20, the carrier 22 and the lens 3 are arranged in the cavity, the magnetic component group 4 is arranged on the base 12, the support 20 and the carrier 22 are movably connected with the base 12, and the conductive ball 7 is arranged between the support 20 and the base 12.

In this embodiment, the fixing portion 1 includes a housing 10 and a base 12, the base 12 is connected with the housing 10, and further encloses a mounting bracket 20, a carrier 22 and a cavity of the lens 3, so as to protect the lens 3, and meanwhile, electromagnetic interference generated by the lens module 100 and electromagnetic interference generated by other components on the lens module 100 can be reduced through the housing 10. The support 20 and the carrier 22 are movably connected with the base 12, the magnetic component set 4 is arranged on the base 12, and when the magnetic component set 4 interacts with the first coil part 5 and/or the second coil part 6, the magnetic component set 4 does not need to move, at least one of the support 20 and the carrier 22 moves relative to the base 12, so that the power consumption of the lens module 100 is reduced.

It will be appreciated that the overall weight of the magnetic element assembly 4 is significant, and thus the provision of the magnetic element assembly 4 on the stationary base 12 and the relatively light weight first coil portion 5 on the support 20 enables a significant reduction in power consumption.

Specifically, the conductive ball 7 is disposed between the support 20 and the base 12, and enables the support 20 and the base 12 to be movably connected, so that the support 20 can move in the first direction or the second direction relative to the base 12.

Further, the bracket 20 is provided with a first metal insert 200, and the base 12 is provided with a terminal 120 and a second metal insert 122.

Further, the base 12 is provided with a mounting groove 124.

Further, at least one magnetic attraction piece 202 is provided on the support 20.

As shown in fig. 3, according to some embodiments of the present application, the lens module 100 further includes: a first elastic sheet 220 supported between the carrier 22 and the bracket 20; the second elastic piece 222 is supported between the carrier 22 and the base 12, at least one of the first elastic piece 220 and the second elastic piece 222 is in a deformed state during the movement of the carrier 22 along the third direction, the second coil portion 6 is connected with the second elastic piece 222, and the second elastic piece 222 is connected with the second metal insert 122 on the fixing portion 1.

In this embodiment, the lens module 100 further includes a first elastic piece 220 and a second elastic piece 222, the first elastic piece 220 is supported between the carrier 22 and the support 20, and the second elastic piece 222 is supported between the carrier 22 and the base 12, so that the carrier 22 is connected to the support 20 and the base 12 through the first elastic piece 220 and the second elastic piece 222, and further the carrier 22 can move along a third direction relative to the support 20 and the base 12 through the first elastic piece 220 and the second elastic piece 222. After the second coil portion 6 is energized, under the action of the magnetic field of the magnetic component set 4, the carrier 22 is driven to move along the third direction, and at least one of the first elastic sheet 220 and the second elastic sheet 222 is deformed during the movement of the carrier 22 along the third direction, so that the second coil portion 6 can be reset under the action of at least one of the first elastic sheet 220 and the second elastic sheet 222 after being de-energized.

Meanwhile, the second coil portion 6 is connected with the second elastic piece 222, and the second elastic piece 222 is connected with the second metal insert 122, so that the second coil portion 6 is electrically connected with the second metal insert 122.

According to some embodiments of the application, the housing 10 comprises a ferromagnetic housing.

In this embodiment, the housing 10 includes a ferromagnetic housing, so that a magnetic field can be converged inside the ferromagnetic housing, leakage of magnets is reduced, magnetic interference and area of magnetic devices around the lens module 100 are small, and accordingly, placement space between the devices is effectively shortened, and space of the whole machine is saved. Accordingly, the interference of the peripheral magnetic devices of the lens module 100 to the internal devices of the ferromagnetic housing is also reduced.

In particular, the ferromagnetic housing comprises an iron shell.

As shown in fig. 6 and 12, according to some embodiments of the present application, the lens module 100 further includes: a detecting member 8 provided in the movable portion 2 for detecting a movement signal of the movable portion 2; the control piece 9 is connected with the fixed part 1, the control piece 9 is connected with the detection piece 8, and the control piece 9 controls the first coil part 5 to work according to the motion signal.

In this embodiment, the lens module 100 further includes a detecting element 8, where the detecting element 8 is disposed on the movable portion 2 and is used to detect a motion signal of the movable portion 2, when the lens module 100 shakes, the detecting element 8 can detect the shake signal and feed back the shake signal to the control element 9, and the control element 9 controls the first coil portion 5 to work, and under the action of the magnetic field of the first coil portion 5 and the magnetic element group 4, the movable portion 2 moves in a direction opposite to the shake direction of the fixed portion 1, so as to implement an anti-shake function.

In a specific application, the detecting element 8 is disposed on the bracket 20 and is connected to the second metal insert 122 of the base 12 through the first metal insert 200 on the bracket 20, so as to realize the electrical connection between the detecting element 8 and the control element 9.

Further, when the lens module 100 shakes, the detecting member 8 sends a shake signal to the control member 9, and the control member 9 controls the first coil portion 5 to be energized, so that the bracket 20 moves in a direction opposite to the shake with respect to the base 12.

Specifically, the detecting member 8 includes a hall element or other element capable of detecting a motion signal including at least one of a motion direction, a motion displacement, and a motion speed. The control 9 comprises a circuit board.

According to some embodiments of the application, the detecting element 8 is provided on the support 20 of the mobile part 2; the number of detecting elements 8 is plural, at least one detecting element 8 detects a movement signal of the support 20 in a first direction, and at least one detecting element 8 detects a movement signal of the support 20 in a second direction.

As shown in fig. 1, in this embodiment, the movable portion 2 includes a support 20, the detecting members 8 are disposed on the support 20, where the number of detecting members 8 is plural, and at least one detecting member 8 is disposed on the support 20 along a first direction, and at least one detecting member 8 is disposed on the support 20 along a second direction, so that the plural detecting members 8 can detect both shake occurring along the first direction and shake occurring along the second direction, and further improve anti-shake performance of the lens module 100.

As shown in fig. 1, according to some embodiments of the application, the first coil part 5 includes: at least two first coils 50 disposed opposite in the first direction and at least two second coils 52 disposed opposite in the second direction; the magnetic element group 4 includes: at least two first magnetic members 40 disposed opposite in the first direction and at least two second magnetic members 42 disposed opposite in the second direction, and in the third direction, a first coil 50 is disposed opposite to the first magnetic members 40 and a second coil 52 is disposed opposite to the second magnetic members 42.

In this embodiment, the first coil part 5 includes the first coils 50 and the second coils 52, the number of the first coils 50 is at least two, the at least two first coils 50 are oppositely disposed along the first direction, the at least two second coils 52 are oppositely disposed along the second direction, and accordingly, the magnetic member group 4 includes the at least two first magnetic members 40 and the at least two second magnetic members 42, the at least two first magnetic members 40 are oppositely disposed along the first direction, the at least two second magnetic members 42 are oppositely disposed along the second direction, and thus the at least two first coils 50 and the at least two first magnetic members 40 are oppositely disposed along the third direction, so as to realize anti-shake along the first direction; the at least two second coils 52 and the at least two second magnetic members 42 are disposed opposite to each other in the third direction, and thus anti-shake in the second direction is achieved.

In a particular application, the first magnetic member 40 and the second magnetic member 42 are both magnets.

Specifically, at least one detecting element 8 is provided corresponding to the first coil 50, and at least one detecting element 8 is provided corresponding to the second coil 52.

According to some embodiments of the application, the second coil part 6 comprises annular coils connected end to end, the outer side wall of the carrier 22 being provided with an annular groove 224, the annular coils being provided in the annular groove 224.

In this embodiment, the second coil portions 6 include annular coils connected end to end, that is, the number of the second coil portions 6 is one, and one second coil portion 6 is disposed in the annular groove 224 in the circumferential direction of the carrier 22, improving the reliability of connection between the second coil portion 6 and the carrier 22.

According to an embodiment of the present application, there is also provided an electronic apparatus including: the lens module 100 according to any of the above embodiments is provided.

It should be noted that, the electronic device includes a mobile phone, a tablet computer, a wearable device, and the like.

In a specific application, the structural stack design of the present application: the iron case is used as a protective body to wrap the whole motor part inside, the upper and lower spring plates (such as the first spring plate 220 and the second spring plate 222) are connected with the carrier 22 to provide support and guide, the AF (Auto Focus) coil and the OIS (anti-shake) coil share the magnet to generate respective required magnetic thrust, the bracket 20 is assembled with the coil to fix and protect the coil, the conductive ball 7 supports the OIS movable part 2 and plays a role of guide and conduction, and the bracket 20 and the base 12 contain metal inserts (such as the first metal insert 200 in the bracket 20 and the second metal insert 122 in the base 12) for connecting the coil and a power supply.

The application relates to a moving coil OIS motor working principle:

when the AF coil, the OISX coil (specifically, the first coil 50 disposed along the first direction) and the OISY coil (specifically, the second coil 52 disposed along the second direction) are energized, an ampere force perpendicular to the magnetic field strength and the coil current direction is generated according to the ampere left hand rule, wherein the OISX coil and the magnet generate a thrust along the X direction, the OISY coil and the magnet generate a thrust along the Y direction, and the hall element senses the displacement of the shake, so that the motor carrier 22 is pushed to move along the direction opposite to the shake direction to perform the correction, thereby achieving the anti-shake effect, and meanwhile, the ampere force generated by the action of the AF coil and the magnet is used for pushing the carrier 22 to move up and down to realize the focusing on the lens module 100.

Specifically, the X direction is a first direction, and the Y direction is a second direction.

Specifically, the iron shell: protecting motor internal components; the upper spring piece: support and guide carriers 22, engaging the suspension wires and functioning as conductors; carrier 22: the lens 3 is used for loading and is connected with the motor AF and the OIS; bracket 20: assembling the coil, the connecting spring and the carrier 22; conductive balls 7: guiding, supporting and conducting effects, the carrier 22 is kept to move steadily; the lower spring plate: support and guide carrier 22; base 12: as a motor lower cover and is assembled with the module part and has conducting function; magnet: providing a magnetic field; AF coil: after the coil is electrified, the coil and the magnet generate electromagnetic force so as to push the carrier 22 to move along the direction of the force to realize a focusing function; OIS coil: after the coil is electrified, electromagnetic force is generated with the magnet to push the bracket 20 to move along the direction of the force so as to realize the anti-shake function; hall chip: the OIS movable portion position is detected by receiving the change in the magnetic field.

The sectional views of fig. 3, 4, 5 and 6 and the enlarged view clearly show the internal structure of the motor.

As shown in fig. 5, the coil and Hall (Hall element) are assembled with the bracket 20 and are conducted with the metal inserts in the bracket 20, and the conductive balls 7 are respectively contacted with the metal inserts in the bracket 20 and the base 12 and are conducted up and down, so that the functional PINs (PINs) of the AF coil, the OIS coil and the Hall are respectively led to the PINs of the motor base 12 through the metal inserts and the conductive balls 7, dynamic conduction is realized, and the motor and the module circuit board are conveniently welded when the subsequent module is assembled.

As shown in fig. 4, the four sides of the bracket 20 are designed with magnetic attraction pieces 202, which are attracted by four magnets on the base 12, so that the balls are clamped between the bracket 20 and the base 12, and thus, when the motor performs OIS movement, the balls and the metal inserts on the motor base 12 and the bracket 20 keep in contact and in a conducting state all the time, and even in the moving state, the balls can be kept in a clamping state, so that the balls are continuously conducted, and the reliability is more stable and firm.

As shown in fig. 8, 4 coils are assembled with the holder 20, and are fixed as a unit after assembly, to constitute the OIS movable section.

As shown in fig. 9, four magnets are assembled with the base 12, and the assembled magnets, base 12 and iron shell are fixed together to form the OIS fixing portion 1.

As shown in fig. 10, two sets of magnets and coils on opposite sides of the motor are symmetrically designed, the coils are assembled with the bracket 20, the magnets are assembled with the base 12 and placed under the coils, and the X coils and the Y coils are vertically placed, when the coils are charged with currents I in different directions, under the action of the magnetic field intensity B, electromagnetic thrust perpendicular to the directions of the currents I and the magnetic field intensity B can be generated according to the left hand rule, and the coils and the bracket 20 can be pushed to move along the direction of the force, so that the anti-shake function is realized.

Left hand rule: the law of the relation among the direction of the applied ampere force F (or movement), the direction of the magnetic induction intensity B and the direction of the current I of the energized conductor bar is judged when the energized conductor is in a magnetic field.

The lens module 100 provided by the application has a smaller interference range on other magnetic devices of the whole lens; the placing distance between devices can be closer, so that the space of the whole machine is saved; the influence of components such as the magnetic conduction main board bracket 20, the magnetic conduction gasket and the like in the whole machine on the OIS Ma Daci is smaller; the motor can be placed in the whole machine more flexibly; the matching degree of freedom and tolerance between the motors with multiple cameras in the whole machine can be higher.

Compared with the prior OIS motor technology, the single-layer ball OIS+shrapnel AF motor structure of the moving coil static magnet can improve magnetic interference, solve the problems of small load and easy breakage of the suspension OIS motor and solve the problem of large dimension of the double-layer ball OIS motor in the height direction.

As shown in fig. 11, it can be understood that the existing suspension OIS motor technology is generally a moving magnet and a static coil, the motor iron shell is generally not a magnetic conductive material, the intelligent terminal such as a mobile phone and the like generally has a plurality of camera motors, and also has a plurality of magnetic steel sheets or other devices with magnetism, so that the safety space needs to be greatly enlarged without magnetic interference. The distance between the existing OIS motor and the peripheral magnetic devices is generally about 8mm, and the application can keep the distance between the magnet-free side of the motor and the peripheral magnetic devices about 3 mm.

According to the application, the motor iron shell can use the OIS motor design scheme of the magnetic conduction material, so that the magnetic field can be converged in the iron shell, the magnetic leakage of the magnet is reduced, the magnetic interference wave and area of peripheral magnetic devices of the motor in the whole machine are small, the placing space between the devices can be effectively reduced, the space of the whole machine is saved, and otherwise, the influence of the peripheral magnetic conduction parts of the motor in the mobile phone on the magnetic interference of the motor is small. The improvement points are summarized as follows: the motor has less magnetic leakage, so that the interference range of other magnetic devices of the whole machine is smaller, the placing distance between the devices can be closer, and the space of the whole machine is saved; the motor has less magnetic leakage, so that the influence of components such as the magnetic conduction main board bracket 20, the magnetic conduction gasket and the like on the OIS Ma Daci in the whole machine is smaller; the motor has less magnetic leakage, so that the flexibility of placing the motor in the whole machine is higher, and the tolerance of motor matching among multiple cameras is greatly increased; compared with the suspension wire OIS motor, the ball OIS motor can effectively solve the problem of suspension wire breakage, and the supportable carrying capacity is larger than that of the suspension wire OIS motor.

In the description of the present specification, reference to the terms "one embodiment," "some embodiments," "illustrative embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiments or examples. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: many changes, modifications, substitutions and variations may be made to the embodiments without departing from the spirit and principles of the application, the scope of which is defined by the claims and their equivalents.

Claims

1. A lens module, comprising:

a fixed portion and a movable portion movable in a first direction and a second direction with respect to the fixed portion;

the lens is arranged on the movable part;

the magnetic part group is arranged on the fixing part;

a first coil part arranged on the movable part, wherein the first coil part and the magnetic element group are correspondingly arranged along a third direction which is perpendicular to a plane where the first direction and the second direction are positioned,

wherein, under the condition that the first coil part is electrified, the first coil part and the magnetic piece group drive the movable part to move along at least one direction of the first direction and the second direction.

2. The lens module as claimed in claim 1, further comprising:

the second coil part is arranged on the movable part and is positioned in a space surrounded by the magnetic piece group, and the movable part is driven to move along the third direction by the second coil part and the magnetic piece group under the condition that the second coil part is electrified.

3. The lens module as claimed in claim 2, further comprising:

the conductive ball is arranged between the movable part and the fixed part, the conductive ball is electrically connected with the movable part and the fixed part, and the movable part is movably connected with the fixed part through the conductive ball.

4. A lens module as claimed in claim 3, wherein the movable portion is provided with a first metal insert, and the first coil portion is electrically connected to the first metal insert;

the fixing part is provided with a terminal and a second metal insert, the second metal insert is electrically connected with the terminal, the conductive ball is electrically connected between the first metal insert and the second metal insert, and the second coil part is connected with the second metal insert.

5. A lens module as claimed in claim 3, wherein the fixing portion is provided with a mounting groove, and the conductive ball is movably disposed in the mounting groove.

6. A lens module according to claim 3, wherein the movable portion is provided with at least one magnetic attraction piece, and the magnetic attraction piece is attracted to the magnetic component group, so that the movable portion and the fixed portion clamp the conductive balls.

7. A lens module as claimed in claim 3, wherein the movable portion comprises:

the support is movably connected with the fixing part, the first coil part is arranged on the support, the first coil part and the magnetic piece group can drive the support to move along at least one direction of the first direction and the second direction, and the support is movably connected with the fixing part through the conductive ball;

the carrier is connected with the support, the lens and the second coil part are arranged on the carrier, and the second coil part and the magnetic part group can drive the carrier to move along the third direction.

8. The lens module as claimed in claim 7, wherein the fixing part includes:

a housing;

the base is connected with the shell and surrounds a cavity, the bracket, the carrier and the lens are arranged in the cavity, the magnetic piece is arranged on the base, the bracket and the carrier are both movably connected with the base,

wherein, electrically conductive ball is located the support with between the base.

9. The lens module as claimed in claim 8, further comprising:

the first elastic sheet is supported between the carrier and the bracket;

the second elastic piece is supported between the carrier and the base, at least one of the first elastic piece and the second elastic piece is in a deformation state in the process of moving the carrier along the third direction, the second coil part is connected with the second elastic piece, and the second elastic piece is connected with the second metal insert on the fixing part.

10. The lens module according to any one of claims 1 to 9, wherein,

the first coil portion includes: at least two first coils disposed opposite to each other along the first direction and at least two second coils disposed opposite to each other along the second direction;

the magnetic member set includes: the magnetic circuit comprises at least two first magnetic pieces oppositely arranged along the first direction and at least two second magnetic pieces oppositely arranged along the second direction, wherein the first coil is oppositely arranged with the first magnetic pieces along the third direction, and the second coil is oppositely arranged with the second magnetic pieces.

11. The lens module according to any one of claims 3 to 9, wherein,

the second coil part comprises annular coils connected end to end, an annular groove is formed in the outer side wall of the carrier, and the annular coils are arranged in the annular groove.

12. An electronic device, comprising:

the lens module according to any one of claims 1 to 11.