CN115277990B

CN115277990B - Anti-shake motor, camera module and electronic equipment

Info

Publication number: CN115277990B
Application number: CN202110486281.6A
Authority: CN
Inventors: 代仁军; 孙战立
Original assignee: Huawei Technologies Co Ltd
Current assignee: Huawei Technologies Co Ltd
Priority date: 2021-04-30
Filing date: 2021-04-30
Publication date: 2024-03-29
Anticipated expiration: 2041-04-30
Also published as: CN115277990A

Abstract

The application provides an anti-shake motor, a camera module and electronic equipment. The bridging layer is arranged on one side of the electrode assembly, and the bridging piece of the bridging layer is used for connecting the first conductive sheet and the second conductive sheet of the driving electrode, so that on one hand, the problem that the first conductive sheet and the second conductive sheet which are arranged at intervals are not easy to connect can be solved under the environment of the compact structure of the electrode assembly, and the position constraint of the first conductive sheet and the second conductive sheet can be released; on the other hand, the peripheral area of the driving electrode layer can meet the electric connection requirement without arranging a plurality of leads, so that the driving electrodes on the electrode assembly are more regularly arranged, and the structure of the anti-shake motor is relatively simple.

Description

Anti-shake motor, camera module and electronic equipment

Technical Field

The application relates to the technical field of camera shooting, in particular to an anti-shake motor, a camera shooting module and electronic equipment.

Background

With popularization and development of smart phones, mobile phone photographing becomes a photographing mode commonly used by people, and mobile phones with optical anti-shake function are more and more popular with users. The optical anti-shake technology is gradually developed from the electromagnetic force suspension type anti-shake technology of the traditional Voice Coil Motor (VCM) to the memory metal thermoelectric effect anti-shake technology of the shape memory alloy (shape memory alloy, SMA) motor.

A conventional SMA motor includes a drive electrode layer and a plurality of SMA wires. The driving electrode layer has a plurality of electrode pads. The plurality of electrode pads may provide drive electrodes for the plurality of SMA wires. However, since the plurality of electrode plates of the driving electrode layer are staggered, the arrangement is disordered, so that a plurality of leads of the SMA motor need to be arranged in the peripheral area of the driving electrode layer to meet the electrical connection requirement, and the structure of the SMA motor is complex.

Disclosure of Invention

The application provides an anti-shake motor, a camera module and electronic equipment with simple structure.

In a first aspect, embodiments of the present application provide an anti-shake motor. The anti-shake motor includes a bridge layer, an electrode assembly, a reed, and a plurality of SMA wires. The electrode assembly is stacked on one side of the bridge layer. The reed is positioned on a side of the electrode assembly remote from the bridging layer. A plurality of SMA wires are disposed around the reed. One end of each SMA wire is connected with the reed, and the other end is connected with the electrode assembly.

The electrode assembly includes a common electrode and a driving electrode disposed at a spacing. The reed is in contact with the common electrode. The driving electrode comprises a first conductive sheet and a second conductive sheet which are arranged at intervals. The bridging layer includes a bridge. The bridge piece is connected with the first conductive sheet and the second conductive sheet. The SMA wire includes a first SMA wire. One end of the first SMA wire is connected with the reed, and the other end of the first SMA wire is connected with the second conducting strip. The first conductive sheet is used for connecting external components of the anti-shake motor. The common electrode, the reed, the first SMA wire, the first conductive sheet, the second conductive sheet, and the bridge form part of a current loop.

It can be understood that, by arranging the bridging layer on one side of the electrode assembly and connecting the first conductive sheet and the second conductive sheet of the driving electrode by using the bridging piece of the bridging layer, on one hand, in the environment of the compact structure of the electrode assembly, the problem that the first conductive sheet and the second conductive sheet which are arranged at intervals are not easy to connect can be solved, namely, the position constraint of the first conductive sheet and the second conductive sheet can be released; on the other hand, the peripheral area of the driving electrode layer can meet the electric connection requirement without arranging a plurality of leads, so that the driving electrodes on the electrode assembly are more regularly arranged, and the structure of the anti-shake motor is relatively simple.

In addition, compared with the scheme of arranging the leads in the peripheral area of the driving electrode layer, the thickness of the bridging layer is increased in the thickness of the anti-shake motor, but the thickness of the bridging layer can be reduced to a larger extent, and at the moment, compared with the whole volume of the anti-shake motor, the volume of the bridging layer can be ignored. Therefore, the volume of the anti-shake motor of the scheme can be reduced to a large extent, namely, the anti-shake motor can be miniaturized.

In addition, when a signal is applied to a current loop formed by the common electrode, the reed, the first SMA wire, the first conductive sheet, the second conductive sheet and the bridge piece, the first SMA wire is electrified and heated, and contracts, so that corresponding pulling force is generated on the reed. The reed can be moved to any position relative to the electrode assembly. When the reed is used for fixing the lens of the camera module. Because the reed can move to any position relative to the electrode assembly, the reed can drive the lens to move to any position relative to the electrode assembly, so that the lens of the camera module can realize optical image anti-shake.

In one implementation, the bridging layer includes a first sub-layer and a second sub-layer that are stacked. The electrode assembly is stacked on the second sub-layer. The first sub-layer includes a conductive portion. The second sub-layer comprises a viscose part, and a first conductive column and a second conductive column which are arranged at intervals. The adhesive part is made of insulating materials. The adhesive part is laminated on the conductive part. The electrode assembly is stacked on the adhesive part. The first conductive column and the second conductive column are embedded in the bonding part, and the first conductive column and the second conductive column are also connected with the conductive part. The conductive portion, the first conductive post and the second conductive post form a bridge.

It is understood that, in one aspect, the adhesive portion may insulate the conductive portion from the electrode assembly. On the other hand, the first conductive sheet and the second conductive sheet may be connected through the conductive portion, the first conductive column, and the second conductive column. The bridging layer has the effect of 'one-thing-multi-purpose'. In addition, the structure that the conductive part, the first conductive column and the second conductive column form the bridging piece is simpler and easy to realize.

In one implementation, the first sub-layer further includes a planar portion, a first connection portion, and a second connection portion. The flat portion is disposed opposite to the conductive portion. The first connection portion is connected between the conductive portion and the flat portion. The second connection portion is connected between the conductive portion and the flat portion. The flat part, the first connecting part, the second connecting part and the conductive part are enclosed into a ring shape.

It is to be understood that, on the one hand, since the flat portion, the first connection portion, the second connection portion and the conductive portion may enclose a ring shape, the conductive portion is a part of the ring structure, and the conductive portion alone cannot form the ring structure. Thus, when the conductive part transmits signals, the conductive part is not easy to form annular current, thereby being beneficial to signal transmission. On the other hand, the flat part, the first connecting part, the second connecting part and the conductive part can form a complete plane, and the flatness of the first sub-layer is higher.

In one implementation, the first sub-layer does not include a flat portion, a first connection portion, and a second connection portion. The conductive part is of a ring structure. It will be appreciated that the conductive portion may form a complete plane, with the first sub-layer having a higher flatness.

In one implementation manner, the first connection portion and the second connection portion are made of insulating materials. The flat part is made of conductive material. The flat portion is grounded.

It can be appreciated that, on the one hand, the material of the flat portion and the material of the conductive portion are both conductive materials. At this time, the material of flat portion and the material of electrically conductive portion adopt same material easily to both can reduce the kind of material, reduce cost's input, can make the hardness looks adaptation of flat portion and electrically conductive portion again, thereby mention the hardness homogeneity of first sublayer.

In addition, by grounding the flat portion, the pulse width modulation (pulse width modulation, PWM) signal is less likely to electromagnetically couple to the flat portion, and the flat portion is less likely to affect the normal operation of other components.

In one implementation, the anti-shake motor further includes a base plate. The first sub-layer is fixed on the substrate through the insulating adhesive layer. The substrate is grounded. The anti-shake motor also includes a conductive member. The conductive member connects the flat portion and the substrate.

It is understood that the flat portion is grounded by a structure such as a conductive member and a substrate. The method is simple and easy to realize.

In one possible implementation, the conductive member is a solder joint.

It will be appreciated that the present solution connects the flat portion to the substrate by a welding process (e.g. laser welding, brazing). At this time, the solder joint formed between the flat portion and the substrate is a conductive member. The connection mode of the flat part and the substrate is simpler and easy to realize. In addition, the connection stability of the flat part and the substrate is more reliable.

In one implementation, the flat portion, the first connection portion, and the second connection portion are all made of an insulating material. Thus, the PWM signal does not generate electromagnetic coupling on the flat part, and the flat part is not easy to influence the normal operation of other components.

In one implementation, the flat portion, the first connection portion, and the second connection portion are all made of conductive materials. Thus, the PWM signal is not easily electromagnetically coupled to the flat portion, and the flat portion is not easily affected by normal operation of other components.

In one implementation, the electrode assembly further includes first and second electrode sheets disposed at intervals. The first electrode sheet and the second electrode sheet are also arranged at intervals from the driving electrode and the common electrode. The first electrode plate and the second electrode plate are positioned between the second conductive plate and the fourth conductive plate.

The first electrode pad is used for transmitting Serial Data (SDA) signals of an inter-integrated circuit bus (inter-integrated circuit, I2C) signal to the lens motor. The second electrode pad is used for transmitting Serial Clock (SCL) signals of the I2C signals to the lens motor.

It can be understood that the first electrode plate and the second electrode plate are arranged on the electrode assembly, so that the integration level of the anti-shake motor can be improved, the mode that the lens motor is electrically connected with an external device is simplified, and the structure of the camera module is simpler when the anti-shake motor is applied to the camera module.

In addition, this scheme is through grounding the flat portion, and the PWM signal just is difficult to take place electromagnetic coupling at the flat portion, and the flat portion just is difficult to influence the normal work of first electrode piece and second electrode piece.

In one implementation, the common electrode includes third and fourth conductive sheets disposed opposite and spaced apart. The third conductive sheet and the fourth conductive sheet are positioned between the first conductive sheet and the second conductive sheet. The first conductive sheet, the second conductive sheet, the third conductive sheet and the fourth conductive sheet enclose a light-transmitting area.

It will be appreciated that when the first conductive sheet and the second conductive sheet are located on both sides of the light-transmitting region, the distance between the first conductive sheet and the second conductive sheet is longer, and the manner in which the first conductive sheet and the second conductive sheet are connected to each other is more difficult. The bridge piece in the implementation manner can connect the first conductive sheet and the second conductive sheet which are far away from each other, so that the problem that the first conductive sheet and the second conductive sheet are not easy to connect is solved.

In addition, the reed includes a body portion, a first spring arm, and a second spring arm. The first spring arm and the second spring arm are respectively connected to two sides of the main body part. The first spring arm is elastically connected with the third conductive sheet. The second spring arm is elastically connected with the fourth conductive sheet. The main body part is arranged at intervals from the electrode assembly.

It will be appreciated that by providing the first spring arm resiliently connected to the third conductive tab, the second spring arm resiliently connected to the fourth conductive tab and spacing the main body portion from the electrode assembly, the main body portion of the reed can be moved to any position relative to the electrode assembly when a force is applied to the main body portion of the reed. When the main body part of the reed is used for fixing the lens of the camera module. Because the main body part of the reed can move to any position relative to the electrode assembly, the main body part of the reed can drive the lens to move to any position relative to the electrode assembly, so that the lens of the camera module realizes optical image anti-shake.

In one implementation, the driving electrode further includes a W1 electrode, where the W1 electrode is spaced from the first conductive sheet and the second conductive sheet. The W1 electrode is located between the first conductive sheet and the fourth conductive sheet. The SMA wire also comprises a fourth SMA wire, one end of the fourth SMA wire is connected with the reed, and the other end of the fourth SMA wire is connected with the W1 electrode. The common electrode, reed, fourth SMA wire and W1 electrode form part of a current loop.

It will be appreciated that when a signal is applied to the current loop formed by the common electrode, the reed, the fourth SMA wire and the W1 electrode, the fourth SMA wire is energised and heated and contracts, thereby generating a corresponding pulling force on the reed. The reed can be moved to any position relative to the electrode assembly. When the reed is used for fixing the lens of the camera module. Because the reed can move to any position relative to the electrode assembly, the reed can drive the lens to move to any position relative to the electrode assembly, so that the lens of the camera module can realize optical image anti-shake.

In one implementation, the drive electrode further includes a W2 electrode. The W2 electrode, the first conducting strip and the second conducting strip are all arranged at intervals. The W2 electrode is located at one side of the first conductive sheet and the second conductive sheet. The part of the W2 electrode is positioned between the third conducting plate and the fourth conducting plate, and the W2 electrode is arranged close to the third conducting plate relative to the fourth conducting plate. The SMA wire also includes a second SMA wire. One end of the second SMA wire is connected with the reed, and the other end is connected with the W2 electrode. The common electrode, the reed, the second SMA wire and the W2 electrode form part of a current loop.

It will be appreciated that when a signal is applied to the common electrode, the reed, the second SMA wire and the W2 electrode, the second SMA wire is energised and heated and contracts, thereby generating a corresponding pulling force on the reed. The reed can be moved to any position relative to the electrode assembly. When the reed is used for fixing the lens of the camera module. Because the reed can move to any position relative to the electrode assembly, the reed can drive the lens to move to any position relative to the electrode assembly, so that the lens of the camera module can realize optical image anti-shake.

In one implementation, the drive electrode further includes a W3 electrode. The W3 electrode is arranged at intervals with the first conducting plate and the second conducting plate. The W3 electrode is located between the first conductive sheet and the fourth conductive sheet. The SMA wire also includes a third SMA wire. One end of the third SMA wire is connected with the reed, and the other end is connected with the W3 electrode. The common electrode, the reed, the third SMA wire and the W3 electrode form part of a current loop.

It will be appreciated that when a signal is applied to the common electrode, the reed, the third SMA wire and the W3 electrode, the third SMA wire is energised and heated and contracts, thereby generating a corresponding pulling force on the reed. The reed can be moved to any position relative to the electrode assembly. When the reed is used for fixing the lens of the camera module. Because the reed can move to any position relative to the electrode assembly, the reed can drive the lens to move to any position relative to the electrode assembly, so that the lens of the camera module can realize optical image anti-shake.

In one implementation, the electrode assembly further includes third and fourth electrode sheets disposed at intervals. The third electrode plate and the fourth electrode plate are also arranged at intervals from the driving electrode and the common electrode. The third electrode plate and the fourth electrode plate are positioned on one side of the third conductive plate far away from the light transmission area. The third electrode plate is used for providing the positive electrode of the power supply for the lens motor. The fourth electrode plate is used for providing a negative electrode of a power supply for the lens motor.

It can be understood that the third electrode plate and the fourth electrode plate are arranged on the electrode assembly, so that the integration level of the anti-shake motor can be improved, the mode that the lens motor is electrically connected with an external device is simplified, and the structure of the camera module is simpler when the anti-shake motor is applied to the camera module.

In a second aspect, an embodiment of the present application provides a camera module. The camera shooting module comprises a lens and the anti-shake motor. The lens is fixed on the reed of the anti-shake motor.

It can be appreciated that, when the structure of the anti-shake motor is relatively simple, the complexity of the structure of the camera module can be reduced to a greater extent. In addition, when the volume of the anti-shake motor can be reduced to a large extent, the volume of the camera shooting module can be reduced to a large extent, and the camera shooting module can be miniaturized.

In addition, when the lens is fixed on the reed, the reed can move to any position relative to the electrode assembly, and the reed can drive the lens to move to any position relative to the electrode assembly, so that the lens of the camera module can realize optical image anti-shake.

In one implementation, the camera module further includes a module circuit board, a photosensitive chip, a bracket, and an optical filter. The photosensitive chip is fixed on the module circuit board and is electrically connected with the module circuit board. The bracket is fixed on the module circuit board. The optical filter is fixed on the bracket and is arranged opposite to the photosensitive chip. The anti-shake motor is fixed on the bracket. The first conductive sheet of the anti-shake motor and the common electrode of the electrode assembly are electrically connected to the module circuit board.

It will be appreciated that the module circuit board, the common electrode, the reed, the first SMA wire, the first conductive sheet, the second conductive sheet and the bridge form part of a current loop. At this time, the module circuit board may transmit a signal to the first SMA wire.

In one implementation, the camera module further includes a lens motor. The lens motor is fixed on the anti-shake motor. The lens is fixed on the lens motor. The lens motor is used for driving the lens to move along the optical axis direction of the image pickup module.

It can be understood that the camera module can realize automatic focusing and optical anti-shake. The function of the camera module is rich, and the requirements of users can be met.

In one implementation, a lens motor includes a base, a lower reed, an upper reed, a moving mount, a first coil, a first magnet, and a motor mount. The base comprises a base and a plurality of positioning columns. The positioning columns are fixed on the base. Each positioning column is provided with a first step surface and a second step surface which are arranged at intervals. The base is fixed on the reed of the anti-shake motor. The lower reed comprises a first ring body and a plurality of first connecting pins which are arranged at intervals. The first connecting pin is connected to the periphery of the first ring body. The first connecting pins are respectively fixed on the first step surfaces in a one-to-one correspondence manner. The upper reed comprises a second ring body and a plurality of second connecting pins which are arranged at intervals. The second connecting pin is connected to the periphery of the second ring body. The second connecting pins are respectively fixed on the second step surfaces in a one-to-one correspondence manner.

The movable support is connected between the first ring body and the second ring body. The first coil is fixed on the movable bracket. The lens is fixed on the movable bracket. The motor support is fixed on the bridging layer of the anti-shake motor. The first magnet is fixed on the inner side of the motor bracket and is arranged opposite to the first coil.

In a third aspect, an embodiment of the present application provides a camera module. The camera module comprises a module circuit board, an anti-shake motor and a shell. The housing is fixed to the module circuit board. The housing is grounded through the module circuit board. The anti-shake motor is fixed on the module circuit board and is positioned on the inner side of the shell.

The anti-shake motor includes a bridge layer, an electrode assembly, a reed, and a plurality of SMA wires. The electrode assembly is stacked on one side of the bridge layer. The reed is positioned on a side of the electrode assembly remote from the bridging layer. A plurality of SMA wires are disposed around the reed. One end of each SMA wire is connected with the reed, and the other end is connected with the electrode assembly.

The electrode assembly includes a common electrode and a driving electrode disposed at a spacing. The reed is in contact with the common electrode. The driving electrode comprises a first conductive sheet and a second conductive sheet which are arranged at intervals. The common electrode and the first conductive sheet are connected to the module circuit board.

The bridging layer comprises a first sub-layer and a second sub-layer which are arranged in a stacked manner. The electrode assembly is stacked on the second sub-layer.

The first sub-layer includes a conductive portion, a flat portion, a first connection portion, and a second connection portion. The flat portion is disposed opposite to the conductive portion. The first connection portion is connected between the conductive portion and the flat portion. The second connection portion is connected between the conductive portion and the flat portion. The flat part, the first connecting part, the second connecting part and the conductive part are enclosed into a ring shape. The first connecting portion and the second connecting portion are made of insulating materials. The flat part is made of conductive material.

The second sub-layer comprises a viscose part, and a first conductive column and a second conductive column which are arranged at intervals. The adhesive part is made of insulating materials. The adhesive part is laminated on the conductive part. The electrode assembly is stacked on the adhesive part. The first conductive column and the second conductive column are embedded in the bonding part. The first conductive post connects the conductive portion and the first conductive sheet. The second conductive post connects the conductive portion and the second conductive sheet.

The SMA wire includes a first SMA wire. One end of the first SMA wire is connected with the reed, and the other end of the first SMA wire is connected with the second conducting strip. The module circuit board, the common electrode of the electrode assembly, the reed, the first SMA wire, the first conductive sheet, the second conductive sheet, the first conductive column, the second conductive column and the conductive part form a part of current loop.

The anti-shake motor also includes a conductive member. The conductive member connects the flat portion and the housing.

It can be understood that, by arranging the bridging layer on one side of the electrode assembly and connecting the first conductive sheet and the second conductive sheet of the driving electrode by using the first conductive column, the second conductive column and the conductive part of the bridging layer, on one hand, the problem that the first conductive sheet and the second conductive sheet which are arranged at intervals are not easy to connect can be solved under the environment of the compact structure of the electrode assembly, namely, the position constraint of the first conductive sheet and the second conductive sheet can be released; on the other hand, the peripheral area of the driving electrode layer can meet the electric connection requirement without arranging a plurality of leads, so that the driving electrodes on the electrode assembly are more regularly arranged, and the structure of the anti-shake motor is relatively simple.

In addition, when a signal is applied to a current loop formed by the common electrode, the reed, the first SMA wire, the first conductive sheet, the second conductive sheet, the first conductive column, the second conductive column and the conductive part of the module circuit board and the electrode assembly, the first SMA wire is electrified and heated, and shrinkage is generated, so that corresponding tensile force is generated on the reed. The reed can be moved to any position relative to the electrode assembly. When the reed is used for fixing the lens of the camera module. Because the reed can move to any position relative to the electrode assembly, the reed can drive the lens to move to any position relative to the electrode assembly, so that the lens of the camera module can realize optical image anti-shake.

In addition, the flat part is grounded through the shell, so that the PWM signal is not easy to generate electromagnetic coupling on the flat part, and the flat part is not easy to influence the normal operation of other components. Further, the flat portion is grounded by a structure such as a conductive member and a housing. The method is simple and easy to realize.

In one possible implementation, the conductive member is a solder joint.

It will be appreciated that the present solution connects the flat portion to the housing by a welding process (e.g. laser welding, brazing). At this time, the solder joint formed between the flat portion and the case is a conductive member. The connection mode of the flat part and the shell is simpler and easy to realize. In addition, the connection stability of the flat part and the shell is more reliable.

In addition, the flat part is grounded through the shell, so that the PWM signals are not easy to be electromagnetically coupled to the flat part, and the flat part is not easy to influence the normal operation of the first electrode plate and the second electrode plate.

In a fourth aspect, embodiments of the present application provide an electronic device. The electronic equipment comprises the shell and the camera module. The camera module is arranged on the shell.

It will be appreciated that the complexity of the structure of the electronic device may be reduced to a greater extent when the structure of the camera module is relatively simple.

Drawings

In order to describe the technical solutions of the embodiments of the present application, the following description will describe the drawings that are required to be used in the embodiments of the present application.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

FIG. 2 is a schematic partial cross-sectional view of the electronic device shown in FIG. 1 at line A-A;

FIG. 3 is a schematic view of a camera module of the electronic device shown in FIG. 1;

FIG. 4 is a partially exploded view of the camera module shown in FIG. 3;

FIG. 5 is a schematic partial cross-sectional view of the camera module shown in FIG. 3 at line B-B;

FIG. 6 is a partially exploded schematic view of the lens assembly shown in FIG. 4;

FIG. 7 is a schematic view of a portion of the lens assembly of FIG. 4;

FIG. 8 is a schematic view of a portion of the lens assembly of FIG. 4;

FIG. 9 is a partially exploded view of the anti-shake motor shown in FIG. 4;

fig. 10 is a partial schematic view of the anti-shake motor shown in fig. 4;

FIG. 11 is an exploded schematic view of the bridging layer shown in FIG. 9;

fig. 12 is a partial schematic view of the anti-shake motor shown in fig. 4;

FIG. 13 is a schematic cross-sectional view of the bridging layer shown in FIG. 9 at line C-C;

fig. 14 is an enlarged schematic view of the electrode assembly shown in fig. 9;

fig. 15 is a schematic view of the electrode assembly shown in fig. 14 at another angle;

FIG. 16 is a schematic view of a portion of the camera module shown in FIG. 3;

FIG. 17 is a schematic view of a portion of the camera module shown in FIG. 16 in a cross-section taken along line D-D;

FIG. 18 is a schematic view of a portion of the camera module shown in FIG. 16 at another angle;

figure 19 is an enlarged schematic view of the reed shown in figure 9;

FIG. 20 is a schematic view of a portion of the camera module shown in FIG. 3;

FIG. 21 is a schematic view of a portion of the camera module shown in FIG. 5;

FIG. 22 is a schematic view of a portion of another embodiment of the camera module shown in FIG. 3;

FIG. 23 is a waveform of an interference signal measured on a first electrode pad of a third type of electrode by the anti-shake motor shown in FIG. 14;

FIG. 24 is a waveform of an interference signal measured on a first electrode pad of a third type of electrode by the anti-shake motor shown in FIG. 22;

FIG. 25 is a schematic partial cross-sectional view of another embodiment of the camera module shown in FIG. 3 at line B-B;

FIG. 26 is a partial schematic view of still another embodiment of the anti-shake motor shown in FIG. 4;

fig. 27 is a schematic view of a part of a still further embodiment of the camera module 40 shown in fig. 3.

Detailed Description

Embodiments of the present application are described below with reference to the accompanying drawings in the embodiments of the present application.

In the description of the embodiments of the present application, it should be noted that, unless explicitly specified and limited otherwise, the term "connected" is to be interpreted broadly, and for example, "connected" may be either detachably connected or non-detachably connected; may be directly connected or indirectly connected through an intermediate medium. Wherein, "fixedly connected" means that the relative positional relationship is unchanged after being connected with each other. "rotationally coupled" means coupled to each other and capable of relative rotation after coupling. References to directional terms in the embodiments of the present application, such as "upper", "lower", "inner", "outer", etc., are merely with reference to the directions of the drawings, and thus, the directional terms used are used for better, more clear description and understanding of the embodiments of the present application, rather than indicating or implying that the apparatus or element being referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the embodiments of the present application. "plurality" means at least two.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device 100 according to an embodiment of the present application. The electronic device 100 may be a device with a camera module, such as a mobile phone, a tablet computer (tablet personal computer), a laptop computer (laptop computer), a personal digital assistant (personal digital assistant, PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, an augmented reality (augmented reality, AR) glasses, an AR helmet, a Virtual Reality (VR) glasses, or a VR helmet. The electronic device 100 of the embodiment shown in fig. 1 is illustrated by way of example as a mobile phone.

Referring to fig. 1 and 2, fig. 2 is a schematic partial cross-sectional view of the electronic device 100 shown in fig. 1 at line A-A. The electronic device 100 includes a housing 10, a screen 20, a host circuit board 30, and a camera module 40. It should be noted that fig. 1, 2 and the following related drawings only schematically illustrate some components included in the electronic device 100, and the actual shapes, actual sizes, actual positions and actual configurations of the components are not limited by fig. 1, 2 and the following drawings. In addition, since the host circuit board 30 and the camera module 40 are internal structures of the electronic device 100, fig. 1 schematically shows the host circuit board 30 and the camera module 40 by dashed lines. In other embodiments, when the electronic device 100 is a device of some other form, the electronic device 100 may not include the screen 20 and the host circuit board 30.

Illustratively, the housing 10 includes a bezel 11 and a back cover 12. The rear cover 12 is fixedly connected to one side of the frame 11. The screen 20 is fixed to a side of the bezel 11 remote from the rear cover 12. The screen 20, the bezel 11, and the back cover 12 together enclose the interior of the electronic device 100. The interior of the electronic device 100 may be used to house components of the electronic device 100, such as a battery, a receiver, or a microphone. Wherein the screen 20 may be used to display images and the like. The screen 20 may be a flat screen or a curved screen. The display of the screen 20 may be an organic light-emitting diode (OLED) display, or an active matrix organic light-emitting diode (AMOLED) display, or a liquid crystal display (liquid crystal display, LCD), or the like.

Referring to fig. 1 and 2 again, the host circuit board 30 is fixed inside the electronic device 100. The host circuit board 30 may be provided with a chip such as a central processing unit (central processing unit, CPU), a graphic processor (graphics processing unit, GPU), or a universal memory (universal flash storage, UFS).

In addition, the image capturing module 40 is provided inside the electronic device 100. The camera module 40 may be used to collect ambient light outside the electronic device 100. The camera module 40 may be a rear camera module or a front camera module. The image pickup module 40 may be a normal image pickup module (the optical axis direction of the image pickup module is the thickness direction of the electronic apparatus 100) as illustrated in fig. 2, or may be a periscope image pickup module (for example, the optical axis direction of the image pickup module is the width direction of the electronic apparatus 100). In addition, the camera module 40 is electrically connected to the host circuit board 30. Thus, the camera module 40 and the host circuit board 30 can mutually transmit signals.

Illustratively, the rear cover 12 is provided with light-transmitting holes 13. The light transmission holes 13 penetrate through opposite surfaces of the rear cover 12. In addition, the electronic apparatus 100 further includes a camera trim 51 and a cover 52. The cover plate 52 is fixedly attached to the inner surface of the camera trim 51. A part of the camera trim 51 is fixed to the inner surface of the rear cover 12. Part of the camera trim 51 is in contact with the wall of the light-transmitting hole 13. The camera trim 51 and the cover 52 separate the inside of the electronic apparatus 100 from the outside of the electronic apparatus 100. The camera decoration 51 and the cover plate 52 can prevent external water or dust from entering the electronic device 100 through the light hole 13. The cover plate 52 is made of a transparent material (e.g., glass or plastic). Ambient light outside the electronic device 100 is able to pass through the cover plate 52 into the interior of the electronic device 100. The camera module 40 collects ambient light entering the interior of the electronic device 100.

Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of an image capturing module 40 of the electronic device 100 shown in fig. 1. Fig. 4 is a partially exploded view of the camera module 40 shown in fig. 3. The camera module 40 includes a module circuit board 41, an anti-shake motor 42, a lens assembly 43, a photosensitive chip 44, a bracket 45, an optical filter 46, and a housing 47. Wherein the photosensitive chip 44 is also referred to as an image sensor, or photosensitive element. The photosensitive chip 44 is used for collecting ambient light and converting image information carried by the ambient light into an electrical signal.

Referring to fig. 5 in combination with fig. 4, fig. 5 is a schematic partial cross-sectional view of the camera module 40 shown in fig. 3 at line B-B. The photosensitive chip 44 is fixed on the module circuit board 41 and is electrically connected to the module circuit board 41. At this time, signals can be transmitted between the photosensitive chip 44 and the module circuit board 41.

In addition, the bracket 45 is fixed to the module circuit board 41. The bracket 45 and the photosensitive chip 44 are positioned on the same side of the module circuit board 41. The bracket 45 is provided with a light passing hole 451. The filter 46 is fixed to the bracket 45 and is located in the light-passing hole 451. The filter 46 is also disposed opposite the photo-sensing chip 44. The filter 46 may be used to filter infrared light or blue light of ambient light, etc., to ensure that the photo-sensing chip 44 has better imaging quality. In other embodiments, when the camera module 40 has other structures, the arrangement of the bracket 45 and the optical filter 46 can be flexibly set according to the requirements. In addition, in some configurations of the camera module, the camera module may not include the bracket 45 and the filter 46.

In addition, the anti-shake motor 42 is fixed to a side of the bracket 45 away from the module circuit board 41. The anti-shake motor 42 is used for optical image anti-shake (optical image stabilization, OIS). The anti-shake motor 42 may be electrically connected to the module circuit board 41. At this time, the module circuit board 41 may transmit a signal to the anti-shake motor 42.

Referring to fig. 5 again, and referring to fig. 4, the lens assembly 43 includes a lens motor 431 and a lens 432.

The lens 432 is disposed on the lens motor 431. The lens motor 431 is used to drive the lens 432 to move along the optical axis direction of the image capturing module 40 to achieve Auto Focus (AF).

In the present embodiment, the lens motor 431 is electrically connected to the anti-shake motor 42. The module circuit board 41 may transmit a signal to the lens motor 431 through the anti-shake motor 42. For example, the module circuit board 41 may transmit an inter-integrated circuit (I2C) signal to the lens motor 431 through the anti-shake motor 42. At this time, the lens motor 431 may control the lens 432 to move along the optical axis direction of the image capturing module 40 according to the I2C signal, so as to achieve auto-focusing. The module circuit board 41 may also transmit power to the lens motor 431 through the anti-shake motor 42 to operate the lens motor 431.

In addition, the lens 432 is also fixed to a side of the anti-shake motor 42 away from the module circuit board 41. It should be noted that, the connection between the lens 432 and the anti-shake motor 42 will be described in detail below with reference to the related drawings. And will not be described in detail here. The anti-shake motor 42 is used to drive the lens 432 to move on a plane perpendicular to the optical axis direction of the lens 432 to achieve optical anti-shake. For example, when the electronic device 100 shakes due to an external force, the anti-shake motor 42 can adjust the position of the lens 432 to avoid or reduce the position deviation of the lens 432 caused by the shake, thereby improving the imaging quality of the camera module 40.

Referring again to fig. 5, and in conjunction with fig. 4, the housing 47 is fixed to the module circuit board 41. The housing 47 is provided with a through hole 471. Part of the lens 432 protrudes outside the housing 47 through the through hole 471. Illustratively, the housing 47 may be grounded. For example, the housing 47 may be electrically connected to a ground point of the module circuit board 41. In this way, the housing 47 may shield electromagnetic waves outside the housing 47 to avoid the external electromagnetic waves of the housing 47 from interfering with the operation of the anti-shake motor 42 and the lens motor 431.

In other embodiments, the housing 47 may also be secured to the bracket 45.

As shown in fig. 2, the module circuit board 41 is fixed inside the electronic device 100. The lens 432 faces the cover plate 52 to receive ambient light passing through the cover plate 52. The module circuit board 41 may be electrically connected to the host circuit board 30. Thus, signals can be transmitted between the module circuit board 41 and the host circuit board 30.

Referring to fig. 6, fig. 6 is a partially exploded view of the lens assembly 43 shown in fig. 4. The lens motor 431 includes a base 4311, a lower reed 4312, an upper reed 4313, a moving bracket 4314, a first coil 4315, a first magnet 4316, a second coil 4317, a second magnet 4318, and a motor bracket 4319.

The base 4311 comprises a base 4341 and a positioning column 4342 fixedly connected to one side of the base 4341. Illustratively, the number of positioning posts 4342 is four. Four positioning posts 4342 are located at four corners of the base 4341, respectively.

The lower reed 4312 comprises a first ring 4351 and a plurality of first connecting legs 4352 arranged at intervals. The first connecting leg 4352 is connected to the periphery of the first ring 4351. The number of first connection pins 4352 is four, for example.

In addition, the upper reed 4313 comprises a second ring 4361 and a plurality of second connecting pins 4362 arranged at intervals. The second connecting leg 4362 is connected to the periphery of the second ring 4361. The number of second connection pins 4362 is four, for example.

Referring to fig. 7, in conjunction with fig. 6, fig. 7 is a schematic view of a portion of the lens assembly 43 shown in fig. 4. Each positioning post 4342 has a first step surface 4343 and a second step surface 4344 arranged at intervals. In other words, the first step surface 4343 and the second step surface 4344 have a height difference in the length direction of the positioning post 4342.

The first connection pins 4352 are respectively fixed to the first step surfaces 4343 in a one-to-one correspondence. The first ring 4351 is located in an area surrounded by the positioning posts 4342.

Referring to fig. 8, fig. 8 is a schematic diagram of a portion of the lens assembly 43 shown in fig. 4, and is shown in combination with fig. 6 and 7. The second connecting pins 4362 are respectively fixed to the second step surfaces 4344 in a one-to-one correspondence. The second ring 4361 is located in an area surrounded by the positioning posts 4342.

In addition, the moving bracket 4314 is connected between the first ring 4351 and the second ring 4361. It should be understood that since the lower reed 4312 and the upper reed 4313 have elasticity, the moving bracket 4314 can move up and down against the elasticity of the lower reed 4312 and the upper reed 4313 when a force is applied to the moving bracket 4314.

In addition, the first coil 4315 and the second coil 4317 are fixed to the moving bracket 4314. The first coil 4315 and the second coil 4317 are disposed opposite to each other. The lens 432 is fixed to the moving bracket 4314.

Referring to fig. 5 again, and referring to fig. 8, the base 4311 is fixed to the anti-shake motor 42. At this time, the lens 432 is fixedly connected to the anti-shake motor 42 through the base 4311. The motor bracket 4319 is fixed to the anti-shake motor 42. A part of the lens 432 passes through the motor bracket 4319 and protrudes outside the motor bracket 4319.

The first magnet 4316 and the second magnet 4318 are fixed to a motor bracket 4319. The first magnet 4316 is disposed opposite to the first coil 4315. The second magnet 4318 is disposed opposite to the second coil 4317. It is understood that when the second magnet 4318 and the second coil 4317 are applied with signals, the first magnet 4316 may be engaged with the first coil 4315, and the second magnet 4318 may be engaged with the second coil 4317 to push the moving bracket 4314 to move along the optical axis direction of the camera module 40, so as to push the lens 432 to move along the optical axis direction of the camera module 40.

In other embodiments, when the lens motor 431 has other structures, the lens 432 may be directly and fixedly connected to the anti-shake motor 42.

Referring to fig. 9, fig. 9 is a partially exploded view of the anti-shake motor 42 shown in fig. 4. The anti-shake motor 42 includes a substrate 421, a first adhesive layer 422, a bridging layer 423, an electrode assembly 424, a reed 425, and an SMA wire 426. Wherein the SMA wire 426 is a shape memory alloy (shape memory alloys, SMA) material, such as a nickel titanium alloy material. SMA is a generic term for a class of metals that have a shape memory effect. In this embodiment, the number of SMA wires 426 is four. The SMA wire 426 includes a first SMA wire 4264, a second SMA wire 4262, a third SMA wire 4263, and a fourth SMA wire 4261. In other embodiments, the number of SMA wires 426 is not particularly limited.

Wherein the substrate 421 is annular. The substrate 421 includes an upper surface 4211 and a lower surface 4212 disposed opposite each other. The substrate 421 may be made of metal. Such as a steel plate. Thus, the hardness of the substrate 421 is preferable. Illustratively, the substrate 421 is provided with first and second through holes 4213, 4214 disposed at intervals. The first through hole 4213 and the second through hole 4214 each penetrate through the upper surface 4211 of the substrate 421 and the lower surface 4212 of the substrate 421. The first through hole 4213 and the second through hole 4214 are respectively located at both sides of the substrate 421.

Referring to fig. 10 in combination with fig. 9, fig. 10 is a schematic view of a part of the anti-shake motor 42 shown in fig. 4. The first adhesive layer 422 is annular. The first adhesive layer 422 is fixed to the upper surface 4211 of the substrate 421. The first adhesive layer 422 may partially or entirely cover the upper surface 4211 of the substrate 421. The first adhesive layer 422 avoids the first through hole 4213 and the second through hole 4214 of the substrate 421. The first glue layer 422 is made of an insulating material.

Referring to fig. 11, in conjunction with fig. 9, fig. 11 is an exploded view of the bridge layer 423 shown in fig. 9. The bridge layer 423 is annular. The bridging layer 423 includes a first sub-layer 4231 and a second sub-layer 4232 that are stacked. The first sub-layer 4231 and the second sub-layer 4232 are both annular. In addition, the first sub-layer 4231 includes a conductive portion 4233, a first connection portion 4234, a flat portion 4235, and a second connection portion 4236.

Referring to fig. 12 in combination with fig. 11, fig. 12 is a schematic view of a part of the anti-shake motor 42 shown in fig. 4. The conductive portion 4233, the first connection portion 4234, the flat portion 4235, and the second connection portion 4236 are connected in this order. The conductive portion 4233 is provided opposite to the flat portion 4235. The second connection portion 4236 is further connected to an end of the conductive portion 4233 remote from the first connection portion 4234. In addition, the conductive portion 4233, the first connection portion 4234, the flat portion 4235, and the second connection portion 4236 are fixed on the surface of the first adhesive layer 422 away from the substrate 421. Since the first adhesive layer 422 is made of an insulating material, the conductive portion 4233 can be insulated from the substrate 421.

The conductive portion 4233 of the present embodiment is a part of a ring structure, and the conductive portion 4233 is not a continuous ring structure. The conductive portion 4233 may have an arc shape, a bar shape, or the like. It should be understood that when the first sub-layer 4231 includes only the conductive portion 4233, that is, does not include the first connection portion 4234, the flat portion 4235 and the second connection portion 4236, the conductive portion 4233 cannot annularly cover the first adhesive layer 422 due to the arc-shaped conductive portion 4233. Thus, the first sub-layer 4231 has poor flatness, which is disadvantageous for high-precision setting of the anti-shake motor 42. In the present embodiment, the first connection portion 4234, the flat portion 4235 and the second connection portion 4236 are sequentially connected to the conductive portion 4233, so that the conductive portion 4233, the first connection portion 4234, the flat portion 4235 and the second connection portion 4236 form a ring shape, thereby realizing annular coverage of the first adhesive layer 422 and significantly improving the flatness of the first sub-layer 4231.

The first connecting portion 4234 and the second connecting portion 4236 may be made of insulating materials. For example, the first connection portion 4234 and the second connection portion 4236 may be formed by curing an insulating glue. At this time, the flat portion 4235 improves the flatness of the first sub-layer 4231, and the flat portion 4235 and the conductive portion 4233 may be insulated from each other by the first connection portion 4234 and the second connection portion 4236, so that the conductive portion 4233 may not form a continuous loop structure due to the flat portion 4235.

In other embodiments, the first sub-layer 4231 may not include the first connection portion 4234, the second connection portion 4236, or the flat portion 4235.

In other embodiments, when the first sub-layer 4231 does not include the first connection portion 4234, the second connection portion 4236 or the flat portion 4235, the conductive portion 4233 may also directly enclose a ring structure.

Illustratively, the flat portion 4235 is made of the same material as the conductive portion 4233. For example, the flat portion 4235 and the conductive portion 4233 may be made of metal materials. The metal material may be copper, gold, silver, aluminum, or the like. In this way, on the one hand, the first sub-layer 4231 does not significantly increase the cost input of the first sub-layer 4231 due to the increase of the material types, and on the other hand, the hardness of the flat portion 4235 is consistent with that of the conductive portion 4233, so that the first sub-layer 4231 can be ensured to have better uniformity. In other embodiments, the flat portion 4235 may be made of other conductive materials, but may be made of different conductive materials than the conductive portion 4233. The flat portion 4235 may be made of an insulating material.

Referring to fig. 11 again, the second sub-layer 4232 includes an adhesive portion 4237, a first conductive pillar 4238, and a second conductive pillar 4239. The adhesive portion 4237 is annular. The adhesive portion 4237 includes an upper surface 4271 and a lower surface 4272 disposed opposite one another. The adhesive portion 4237 is made of an insulating material. The first conductive posts 4238 and the second conductive posts 4239 are made of conductive materials.

Illustratively, the adhesive portion 4237 may be integrally formed with the first and second connection portions 4234, 4236.

Referring to fig. 13 in combination with fig. 12, fig. 13 is a schematic cross-sectional view of the bridging layer shown in fig. 9 at line C-C. In fig. 13, a schematic structure enclosed by two small dotted circles and a schematic structure enclosed by two large dotted circles are illustrated. The schematic structure enclosed by the large dotted circle is an enlargement of the schematic structure enclosed by the small dotted circle. The same schematic will appear in the following figures, which schematic is the same as in fig. 13. And will not be described in detail hereinafter.

The adhesive portion 4237 is fixed on the surface of the first sub-layer 4231 away from the first adhesive layer 422. The adhesive portion 4237 covers the conductive portion 4233, the first connection portion 4234, the flat portion 4235, and the second connection portion 4236 of the first sub-layer 4231 to improve the flatness of the second sub-layer 4232. At this time, the upper surface 4271 of the adhesive portion 4237 faces away from the first sub-layer 4231. The lower surface 4272 of the adhesive portion 4237 faces the first sub-layer 4231.

In addition, the first conductive posts 4238 and the second conductive posts 4239 are respectively embedded in the adhesive portion 4237 at intervals. The first conductive posts 4238 and the second conductive posts 4239 are respectively located at two sides of the adhesive portion 4237. One end of each of the first conductive pillar 4238 and the second conductive pillar 4239 is exposed opposite to the upper surface 4271 of the adhesive portion 4237, and is connected to the conductive portion 4233 of the first sub-layer 4231. The other ends of the first conductive post 4238 and the second conductive post 4239 are also exposed from the lower surface 4272 of the adhesive portion 4237, and are connected to the conductive portion 4233 of the first sub-layer 4231. In this way, the first conductive post 4238 and the second conductive post 4239 can be electrically connected through the conductive portion 4233. At this time, the first conductive post 4238, the second conductive post 4239, and the conductive portion 4233 form a bridge 4230. Illustratively, the first and second modules are connected to one another. The bridge 4230 may be a "U" shaped structure. In other embodiments, the bridge 4230 may be other shapes as well.

Referring to fig. 14, fig. 14 is an enlarged schematic view of the electrode assembly 424 shown in fig. 9. The electrode assembly 424 has a ring shape. Illustratively, electrode assembly 424 is of a "inside-out" configuration. The electrode assembly 424 has a light transmissive region 490. The light transmissive region 490 is used to allow ambient light passing through the lens 432 to pass through the electrode assembly 424.

The electrode assembly 424 includes oppositely disposed first and second sides 1 and 2, and oppositely disposed third and fourth sides 3 and 4. The first side 1 and the second side 2 are connected between the third side 3 and the fourth side 4. The first side 1, the second side 2, the third side 3 and the fourth side 4 enclose a light-transmitting area 490. In addition, the junction of the first side 1 and the fourth side 4 forms a first corner 5 of the electrode assembly 424. The junction of the first side 1 and the third side 3 forms a second corner 6 of the electrode assembly 424. The junction of the second side 2 and the third side 3 forms a third corner 7 of the electrode assembly 424. The junction of the second side 2 and the fourth side 4 forms a fourth corner 8 of the electrode assembly 424.

In the present embodiment, the electrode assembly 424 includes a first type electrode 4241, a second type electrode 4242, a third type electrode 4243, and a fourth type electrode 4244, which are disposed at intervals. Illustratively, the first type of electrode 4241 may be a drive electrode (also referred to as wire pole or w pole) of the anti-shake motor 42. The second type of electrode 4242 may be a common electrode (also referred to as com pole or opin pole) of the anti-shake motor 42. The third type of electrode 4243 may be electrically connected to the lens motor 431 for providing an I2C signal to the lens motor 431 (see fig. 5). The third type of electrodes 4243 may be electrically connected to the lens motor 431 by a flexible circuit board (flexible printed circuit, FPC), a wire, or the like, for example. The fourth type of electrode 4244 may be electrically connected to the lens motor 431 for transmitting power to the lens motor 431 (see fig. 5). Illustratively, the fourth type electrode 4244 may be electrically connected to the lens motor 431 by a flexible circuit board (flexible printed circuit, FPC), a wire, or the like. In other embodiments, the electrode assembly 424 may not include the third type of electrode 4243 and the fourth type of electrode 4244.

The first type electrode 4241 includes a W0 electrode 45, a W1 electrode 46, a W2 electrode 47, and a W3 electrode 48, which are disposed at intervals.

Referring to fig. 14 again, the W0 electrode 45 includes a first conductive piece 451, a second conductive piece 452 and a first fixing claw 453 which are disposed at intervals and opposite to each other. The first conductive sheet 451 is a portion of the first side 1 of the electrode assembly 424. The second conductive sheet 452 is a portion of the second side 2 of the electrode assembly 424, and one end of the second conductive sheet 452 forms a portion of the third corner 7 of the electrode assembly 424, and the other end of the second conductive sheet 452 is adjacent to the fourth corner 8 of the electrode assembly 424. In addition, the first fixing claw 453 is fixed to the second conductive piece 452. In this embodiment, the first fixing jaw 453 may have a bent structure. In other embodiments, the first fixing jaw 453 may have other structures.

In addition, the first conductive piece 451 includes a connection section 4511 and an extension section 4512. The connection section 4511 of the first conductive sheet 451 is connected to the extension section 4512 of the first conductive sheet 451 in a bent manner. Illustratively, the connecting segment 4511 of the first conductive strip 451 may be disposed at a right angle to the extending segment 4512 of the first conductive strip 451.

Wherein the W1 electrode 46 is located at one side of the first conductive sheet 451 of the W0 electrode 45. The W1 electrode 46 includes a connecting section 461, an extending section 462, and a second fixed jaw 463. The connecting segment 461 of the W1 electrode 46 is a portion of the first side 1 of the electrode assembly 424. One end of the extension 462 of the W1 electrode 46 is bent and connected to the connecting section 461 of the W1 electrode 46. The other end of the extension 462 of the W1 electrode 46 is part of the first corner 5 of the electrode assembly 424. Illustratively, the extension 462 of the W1 electrode 46 is disposed at right angles to the connecting segment 461 of the W1 electrode 46.

In addition, a second stationary claw 463 is fixed to the extension section 462 of the W1 electrode 46. In this embodiment, the second fixed jaw 463 may have a bent structure. In other embodiments, the second fixed jaw 463 may have other configurations.

Wherein the W2 electrode 47 is located at one side of the second conductive sheet 452 of the first conductive sheet 451. Specifically, the W2 electrode 47 is located on the side of the first conductive sheet 451 of the W0 electrode 45 away from the W1 electrode 46. The W2 electrode 47 includes a connecting section 471, an extending section 472, and a third stationary jaw 473. The connecting section 471 of the W2 electrode 47 is part of the first side 1 of the electrode assembly 424. The partial extension of the W2 electrode 47 is part of the third side 3 of the electrode assembly 424. One end of the extension 472 of the W2 electrode 47 is connected to the connection 471 of the W2 electrode 47 by bending. The other end of the extension 472 of the W2 electrode 47 is part of the third corner 7 of the electrode assembly 424. The other end of the extension 472 of the W2 electrode 47 is spaced apart from the second conductive sheet 452 of the W0 electrode 45. Illustratively, the extension 472 of the W2 electrode 47 is disposed at right angles to the connection 471 of the W2 electrode 47.

In addition, the third fixed jaw 473 is fixed to the extension 472 of the W2 electrode 47. In this embodiment, the third fixed jaw 473 may have a bent structure. In other embodiments, the third fixed jaw 473 may have other configurations.

Wherein the W3 electrode 48 is located between the first conductive sheet 451 of the W0 electrode 45 and the W1 electrode 46. The W3 electrode 48 includes a connection section 481, an extension section 482 and a fourth stationary jaw 483. The connection section 481 of the W3 electrode 48 is located between the first conductive piece 451 of the W0 electrode 45 and the connection section 461 of the W1 electrode 46. Extension 482 of W3 electrode 48 is positioned inside extension 462 of W1 electrode 46. The connection section 481 of the W3 electrode 48 is a portion of the first side 1 of the electrode assembly 424. One end of the extension 482 of the W3 electrode 48 is bent and connected to the connection section 481 of the W3 electrode 48. The other end of the extension 482 of the W3 electrode 48 forms a portion of the first corner 5 of the electrode assembly 424. The other end of the extension 482 of the W3 electrode 48 is spaced from the other end of the extension 462 of the W1 electrode 46. Illustratively, the extension 482 of the W3 electrode 48 is disposed at right angles to the connection 481 of the W3 electrode 48.

In addition, the fourth fixed jaw 483 is fixed to the extension 482 of the W3 electrode 48. In this embodiment, the fourth fixed jaw 483 may have a bent structure. In other embodiments, the fourth fixed jaw 483 may have other structures.

Referring again to fig. 14, the second type electrode 4242 comprises third and fourth conductive sheets 491, 492 arranged in spaced and opposing relation.

Wherein the third conductive sheet 491 is located at one side of the first conductive sheet 451 and the second conductive sheet 452. Specifically, the third conductive sheet 491 is located on the side of the W2 electrode 47 that is remote from the first conductive sheet 451 of the W0 electrode 45. The third conductive sheet 491 is located on one side of the first conductive sheet 451 and the second conductive sheet 452. The third conductive sheet 491 includes a connecting section 4911 and an extension section 4912. The connecting segment 4911 of the third conductive tab 491 is part of the first side 1 of the electrode assembly 424. The extension 4912 of the third conductive sheet 491 is part of the third side 3 of the electrode assembly 424. In addition, one end of the extension 4912 of the third conductive sheet 491 is bent and connected to the connection piece 4911 of the third conductive sheet 491. The other end of the extension 4912 of the third conductive sheet 491 forms a portion of the third side 3 of the electrode assembly 424. The extension 4912 of the third conductive sheet 491 is located outside of the extension 472 of the W2 electrode 47. Illustratively, the extension 4912 of the third conductive sheet 491 is disposed at right angles to the connection section 4911 of the third conductive sheet 491.

In addition, the fourth conductive sheet 492 is a part of the fourth side 4 of the electrode assembly 424. The fourth conductive sheet 492 is located on the other side of the first conductive sheet 451 and the second conductive sheet 452. It is understood that the W1 electrode 46 is located between the first conductive sheet 451 and the fourth conductive sheet 492. A portion of the W2 electrode 47 is located between the third conductive sheet 491 and the fourth conductive sheet 492, and the W2 electrode 47 is disposed close to the third conductive sheet 491 with respect to the fourth conductive sheet 492. The W3 electrode 48 is located between the first conductive sheet 451 and the fourth conductive sheet 492.

Referring again to fig. 14, the third type electrode 4243 comprises a first electrode pad 493 and a second electrode pad 494 disposed at intervals.

Illustratively, the first electrode pad 493 is used to transmit a Serial Data (SDA) signal of the I2C signal to the lens motor 431 (see fig. 5). The first electrode pad 493 may also be referred to as a serial data line. The second electrode pad 494 is used for transmitting a Serial Clock (SCL) signal of the I2C signal to the lens motor 431 (see fig. 5). The second electrode pad 494 is also referred to as a serial clock line.

Referring to fig. 15 in combination with fig. 14, fig. 15 is a schematic view of the electrode assembly 424 of fig. 14 at another angle. The first electrode pad 493 is located between the second conductive pad 452 and the fourth conductive pad 492 and is spaced apart from the second conductive pad 452 and the fourth conductive pad 492. The first electrode tab 493 includes a connecting section 4931 and an extending section 4932. The connecting section 4931 of the first electrode tab 493 is a portion of the second side 2 of the electrode assembly 424. One end of the extension 4932 of the first electrode tab 493 is a portion of the second side 2 of the electrode assembly 424 and the other end is a portion of the fourth side 4 of the electrode assembly 424. In addition, one end of the extension 4932 of the first electrode 493 is connected to the connection 4931 of the first electrode 493 in a bending manner. The other end of the extension 4932 of the first electrode tab 493 is spaced apart from the fourth conductive tab 492 of the second type electrode 4242. Illustratively, the extension 4932 of the first electrode tab 493 is disposed at a right angle to the connection 4931 of the first electrode tab 493.

The second electrode pad 494 is located at a side of the first electrode pad 493 away from the second conductive pad 452, that is, the second electrode pad 494 is located at an outer side of the first electrode pad 493. The second electrode tab 494 is the fourth corner 8 of the electrode assembly 424. The second electrode pad 494 includes a connecting section 4941 and an extending section 4942. The extension 4942 of the second electrode pad 494 is connected to the connection 4941 of the second electrode pad 494 in a bending manner. Illustratively, the extension 4942 of the second electrode pad 494 is disposed at right angles to the connection 4941 of the second electrode pad 494.

Referring again to fig. 14, the fourth type electrode 4244 comprises third electrode pads 495 and fourth electrode pads 496 arranged at intervals. Illustratively, the third electrode plate 495 is used to provide an anode of power to the lens motor 431 (see fig. 5). The fourth electrode piece 496 is used for providing a negative electrode of the power supply to the lens motor 431 (see fig. 5).

Wherein the third electrode piece 495 is located at a side of the third conductive piece 491 remote from the W2 electrode 47. The third electrode tab 495 includes a connecting section 4951 and an extension section 4952. The connecting section 4951 of the third electrode tab 495 is a portion of the first side 1 of the electrode assembly 424. One end of the extension 495 of the third electrode tab 495 is a portion of the first side 1 of the electrode assembly 424, and the other end is a portion of the third side 3 of the electrode assembly 424. One end of the extension section 4952 of the third electrode tab 495 is connected to the connection section 4951 of the third electrode tab 495 in a bending manner. The other end of the extension 495 of the third electrode tab 495 is spaced apart from the third conductive tab 491 of the second type electrode 4242. Illustratively, the extension 4952 of the third electrode tab 495 is disposed at right angles to the connection section 4951 of the third electrode tab 495.

The fourth electrode pad 496 is located on a side of the third electrode pad 495 away from the third conductive pad 491. The fourth electrode tab 496 of the fourth type electrode 4244 is located outside the third electrode tab 495 of the fourth type electrode 4244 and is the second corner 6 of the electrode assembly 424. The fourth electrode pad 496 includes a connection section 4961 and an extension section 4962. The extension 4962 of the fourth electrode tab 496 is bent and connected to the connection 4961 of the fourth electrode tab 496. Illustratively, the extension 4962 of the fourth electrode tab 496 is disposed at a right angle to the connection 496 of the fourth electrode tab 496.

Referring to fig. 16, fig. 16 is a schematic diagram of a portion of the camera module 40 shown in fig. 3, and is shown in combination with fig. 14 and 15. The substrate 421 of the anti-shake motor 42 is fixed to a surface of the bracket 45 away from the module circuit board 41. The extension 4512 of the first conductive sheet 451 of the W0 electrode 45, the second conductive sheet 452 of the W0 electrode 45, the extension 462 of the W1 electrode 46, the extension 472 of the W2 electrode 47, the extension 482 of the W3 electrode 48, the extension 4912 of the third conductive sheet 491 of the second type electrode 4242, the fourth conductive sheet 492 of the second type electrode 4242, the extension 4932 of the first electrode sheet 493 of the third type electrode 4243, the extension 4942 of the second electrode sheet 494 of the third type electrode 4243, the extension 495 of the third electrode sheet 495 of the fourth type electrode 4244, and the extension 496 of the fourth electrode sheet 496 of the fourth type electrode 4244 are fixed to the upper surface 4271 of the adhesive portion 4237.

In addition, the connection section 4511 of the first conductive tab 451 of the W0 electrode 45, the connection section 461 of the W1 electrode 46, the connection section 471 of the W2 electrode 47, the connection section 481 of the W3 electrode 48, the connection section 4911 of the third conductive tab 491 of the second type electrode 4242, the connection section 495 of the third electrode tab 495 of the fourth type electrode 4244, and the connection section 496 of the fourth electrode tab 496 of the fourth type electrode 4244 are positioned on one side of the bridge layer 423, pass through the first through hole 4213 of the substrate 421, and are electrically connected to the module circuit board 41. At this time, the module circuit board 41 may transmit signals to the W0 electrode 45, the W1 electrode 46, the W2 electrode 47, the W3 electrode 48, the second type electrode 4242, and the fourth type electrode 4244.

Referring to fig. 17 in combination with fig. 16, fig. 17 is a schematic partial cross-sectional view of the partial camera module 40 shown in fig. 16 along line D-D. The extension 4512 of the first conductive sheet 451 of the W0 electrode 45 is also connected to the first conductive post 4238 of the bridging layer 423. The second conductive pad 452 of the W0 electrode 45 is connected to the second conductive post 4239 of the bridge layer 423. Thus, the first conductive sheet 451 of the W0 electrode 45 may be electrically connected to the second conductive sheet 452 of the W0 electrode 45 through the first conductive post 4238, the conductive portion 4233 of the bridge layer 423, and the second conductive post 4239.

Referring to fig. 18 in combination with fig. 15, fig. 18 is a schematic view of a portion of the camera module 40 shown in fig. 16 at another angle. The connection segment 4931 of the first electrode pad 493 of the third electrode 4243 and the connection segment 4941 of the second electrode pad 494 of the third electrode 4243 are located at the other side of the bridge layer 423, pass through the second through hole 4214 of the substrate 421, and are electrically connected to the module circuit board 41. At this time, the module circuit board 41 may transmit signals to the third type electrodes 4243.

Referring to fig. 19, fig. 19 is an enlarged schematic view of the reed 425 shown in fig. 9. The reed 425 is annular. The reed 425 includes a body portion 4251, a first spring arm 4252, and a second spring arm 4253. The first spring arm 4252 and the second spring arm 4253 may each have an L shape. The reed 425 is made of a conductive material.

The main body 4251 includes a first side 4254 and a second side 4255 disposed opposite to each other, and a third side 4256 and a fourth side 4257 disposed opposite to each other. The third and fourth side portions 4256, 4257 are connected between the first and second side portions 4254, 4255.

The main body portion 4251 is provided with first movable claws 4281, second movable claws 4282, third movable claws 4283, and fourth movable claws 4284 which are provided at intervals. The first movable jaw 4281 and the second movable jaw 4282 are located at the junction of the second side 4255 and the third side 4256. The third movable jaw 4283 and the fourth movable jaw 4284 are located at the junction of the first side 4254 and the fourth side 4257. The shapes of the first movable claws 4281, the second movable claws 4282, the third movable claws 4283 and the fourth movable claws 4284 are not limited to the block shape illustrated in fig. 19. The device can be flexibly arranged according to the needs.

Wherein the first spring arm 4252 comprises a first fixed end 4285 and a second fixed end 4286. The first fixed end 4285 is fixedly connected to the first side portion 4254 of the main body portion 4251. The second fixed end 4286 is located at a side of the third side portion 4256. The first spring arm 4252 is disposed obliquely to the main body 4251.

In addition, the second spring arm 4253 includes a third fixed end 4287 and a fourth fixed end 4288. The third fixed end 4287 is fixed to the second side portion 4255 of the main body portion 4251. The fourth fixed end 4288 is located on the side of the fourth side portion 4257. The second spring arm 4253 is disposed obliquely to the main body 4251.

Referring to fig. 20, fig. 20 is a schematic diagram of a part of the structure of the camera module 40 shown in fig. 3, and is shown in combination with fig. 16 and 19. The reed 425 is disposed on a side of the electrode assembly 424 remote from the bridging layer 423. The second fixed end 4286 of the first spring arm 4252 of the reed 425 is secured to the extension 4912 of the third conductive tab 491 of the second-type electrode 4242. The second spring arm 4253 of the reed 425 is secured to the fourth conductive tab 492 of the second type electrode 4242 (see fig. 16 for a primary purpose). A difference in height is formed between the first fixed end 4285 of the first spring arm 4252 and the second fixed end 4286 of the first spring arm 4252. The height of the first fixed end 4285 of the first spring arm 4252 may be understood as the distance between the first fixed end 4285 of the first spring arm 4252 and the electrode assembly 424; the height of the second fixed end 4286 of the first spring arm 4252 may be understood as the distance between the second fixed end 4286 of the first spring arm 4252 and the electrode assembly 424.

In addition, a height difference is formed between the third fixed end 4287 of the second spring arm 4253 and the fourth fixed end 4288 of the second spring arm 4253. The height of the third fixed end 4287 of the second spring arm 4253 may be understood as the distance between the third fixed end 4287 of the second spring arm 4253 and the electrode assembly 424; the height of the fourth fixed end 4288 of the second spring arm 4253 may be understood as the distance between the fourth fixed end 4288 of the second spring arm 4253 and the electrode assembly 424.

It will be appreciated that, due to the difference in height between the first fixed end 4285 of the first spring arm 4252 and the second fixed end 4286 of the first spring arm 4252, the difference in height between the third fixed end 4287 of the second spring arm 4253 and the fourth fixed end 4288 of the second spring arm 4253, the first spring arm 4252 is resiliently connected to the third conductive tab 491 of the second type electrode 4242. The second spring arm 4253 is resiliently connected to the fourth conductive tab 492. The body portion 4251 of the reed 425 is spaced from the electrode assembly 424, i.e., the body portion 4251 of the reed 425 is not in contact with the electrode sheets of the electrode assembly 424. In addition, since the reed 425 is made of a conductive material, the third conductive sheet 491 of the second-type electrode 4242, the reed 425, and the fourth conductive sheet 492 of the second-type electrode 4242 can be electrically connected to each other.

In other embodiments, the reed 425 may be configured by referring to the lower reed 4312 (see fig. 6) of the lens motor 431. For example, a plurality of first connection pins are provided at intervals in the body portion 4251 of the reed 425. In addition, the structure of the bracket 45 may be set by referring to the structure of the base 4311 (see fig. 6) of the lens motor 431. For example, the bracket 45 is provided with a plurality of positioning posts. The connection stability of the reed 425 is improved by fixing the first connecting pin of the reed 425 to the positioning post of the bracket 45.

In other embodiments, a related mating structure may be provided between the reed 425 and the electrode assembly 424 to enhance the connection stability of the reed 425.

Referring to fig. 20 again, and referring to fig. 14 and 17 in combination, one end of the first SMA wire 4264 is fixed to the first fixing jaw 453 of the W0 electrode 45 and electrically connected to the first fixing jaw 453. The other end of the first SMA wire 4264 is fixed to the fourth movable jaw 4284 of the reed 425 and is electrically connected to the fourth movable jaw 4284. Thus, the module circuit board 41, the third conductive sheet 491 of the second type electrode 4242, the reed 425, the first SMA wire 4264, the second conductive sheet 452 of the W0 electrode 45, the second conductive post 4239, the conductive portion 4233 of the bridge layer 423, the first conductive post 4238, and the first conductive sheet 451 of the W0 electrode 45 constitute a first current loop. It will be appreciated that the manner in which the first SMA wire 4264 is connected to the first fixed jaw 453 and the fourth movable jaw 4284 of the reed 425 is not particularly limited in this application.

In addition, one end of the second SMA wire 4262 is fixed to the third fixed jaw 473 of the W2 electrode 47, and is electrically connected to the third fixed jaw 473. The other end of the second SMA wire 4262 is fixed to the second movable jaw 4282 of the reed 425 and is electrically connected to the second movable jaw 4282. Thus, the module circuit board 41, the third conductive sheet 491 of the second type electrode 4242, the reed 425, the second SMA wire 4262, and the W2 electrode 47 constitute a second current loop. It will be appreciated that the manner in which the second SMA wire 4262 is connected to the third fixed jaw 473 and the second movable jaw 4282 of the reed 425 is not particularly limited in this application.

In addition, one end of the third SMA wire 4263 is fixed to the fourth fixed jaw 483 of the W3 electrode 48, and is electrically connected to the fourth fixed jaw 483. The other end of the third SMA wire 4263 is fixed to the third movable jaw 4283 of the reed 425 and is electrically connected to the third movable jaw 4283. Thus, the module circuit board 41, the third conductive sheet 491 of the second type electrode 4242, the reed 425, the third SMA wire 4263, and the W3 electrode 48 constitute a third current loop. It will be appreciated that the manner of connection of the third SMA wire 4263 to the fourth fixed jaw 483 and the third movable jaw 4283 of the reed 425 is not particularly limited in this application.

One end of the fourth SMA wire 4261 is fixed to the second fixed jaw 463 of the W1 electrode 46, and is electrically connected to the second fixed jaw 463. The other end of the fourth SMA wire 4261 is fixed to the first movable jaw 4281 of the reed 425 and is electrically connected to the first movable jaw 4281. Thus, the module circuit board 41, the third conductive sheet 491 of the second type electrode 4242, the reed 425, the fourth SMA wire 4261, and the W1 electrode 46 constitute a fourth current loop. It will be appreciated that the manner in which the fourth SMA wire 426 is connected to the second fixed jaw 463 and the first movable jaw 4281 of the reed 425 is not particularly limited in this application.

It will be appreciated that the first, second, third and fourth SMA wires 4264, 4262, 4263 and 4261 may be scaled by transmitting pulse width modulated (pulse width modulation, PWM) signals in the first, second, third and fourth current loops. Thus, the first SMA wire 4264, the second SMA wire 4262, the third SMA wire 4263, and the fourth SMA wire 4261 may move the reed 425 relative to the substrate 421.

Referring to fig. 21 again, and referring to fig. 20, fig. 21 is a schematic view of a part of the structure of the camera module 40 shown in fig. 5. The base 4311 of the lens motor 431 is fixed to the main body 4251 of the reed 425. At this time, the lens 432 is fixed to the body portion 4251 of the reed 425 via the mount 4311. It will be appreciated that the lens 432 can also move relative to each other as the first, second, third and fourth SMA wires 4264, 4262, 4263, 4261 move the reed 425. In this way, when the electronic device 100 shakes, the first SMA wire 4264, the second SMA wire 4262, the third SMA wire 4263 and the fourth SMA wire 4261 can drive the reed 425 to move relative to the substrate 421 to offset or reduce the displacement of the lens 432 caused by shake, thereby ensuring better imaging quality of the camera module 40.

In addition, the motor bracket 4319 is fixed to the adhesive portion 4237 of the bridge layer 423. Since the motor bracket 4319 is fixed with the first magnet 4316 and the second magnet 4318, at this time, a part of the structure of the lens motor 431 is not fixed to the main body portion 4251 of the reed 425. The body portion 4251 of the reed 425 is less prone to material fatigue.

In the present embodiment, the structure of the anti-shake motor 42 is specifically described by referring to the accompanying drawings. The anti-shake motor 42 has a bridging layer 423. The first conductive post 4238 of the bridge layer 423, the second conductive post 4239 of the bridge layer 423, and the conductive portion 4233 of the bridge layer 423 realize the connection between the first conductive piece 451 of the W0 electrode 45 and the second conductive piece 452 of the W0 electrode 45, so that on the one hand, in the environment of the compact structure of the electrode assembly 424, the problem that the first conductive piece 451 and the second conductive piece 452 are not easily connected at intervals can be solved, that is, the position constraint of the first conductive piece 451 and the second conductive piece 452 can be released; on the other hand, the peripheral area of the electrode assembly 424 may not need to be provided with a plurality of leads to satisfy the electrical connection requirement, so that the electrode pads on the electrode assembly 424 are arranged more regularly, and the structure of the anti-shake motor 42 is relatively simple.

In addition, compared with the scheme of arranging the leads in the peripheral area of the driving electrode layer, the thickness of the bridging layer 423 can be made smaller to a larger extent although the bridging layer 423 is added in the thickness of the anti-shake motor 42 in the scheme, and at this time, compared with the whole volume of the anti-shake motor 42, the volume of the bridging layer 423 can be ignored. Therefore, the volume of the anti-shake motor 42 can be reduced to a large extent, that is, the anti-shake motor 42 can be miniaturized.

It is understood that the bridging layer 423 of the present embodiment is used to electrically connect two conductive sheets. In other embodiments, the bridging layer 423 may also be used to electrically connect more than two conductive sheets.

It is understood that the anti-shake motor 42 in this embodiment only illustrates one bridging layer 423. In other embodiments, the number of bridging layers 423 may be greater than one. Each bridging layer 423 may be used to make electrical connection to two conductive sheets.

In this embodiment, when the first current loop, the second current loop, the third current loop and the fourth current loop transmit PWM signals, the first current loop, the second current loop, the third current loop and the fourth current loop generate electromagnetic radiation. In the radiation spaces of the first, second, third and fourth current loops, the individual metal pieces may produce electromagnetic coupling. The voltage generated by the individual metal pieces is not released. At this time, the magnetic field generated by the independent conductive member interferes with the I2C signal on the third type electrode 4243 (refer to fig. 14), so that the I2C signal on the third type electrode 4243 generates an interference pulse, which causes abnormal I2C bus communication. Referring to fig. 12, the flat portion 4235 of the bridge layer 423 in the present embodiment makes the first sub-layer 4231 of the bridge layer 423 have better flatness, and meanwhile, the flat portion 4235 of the bridge layer 423 is not electrically connected to an external device, and the flat portion 4235 of the bridge layer 423 forms an isolated metal part. Thus, when the flat portion 4235 of the bridge layer 423 is electromagnetically coupled, the flat portion 4235 of the bridge layer 423 may interfere with the I2C signal on the third type electrode 4243 (see fig. 14), resulting in abnormal I2C bus communication. Several embodiments will be specifically described below with reference to the related drawings, where each embodiment can effectively solve the problem that the flat portion 4235 of the bridge layer 423 affects the normal operation of the lens assembly 43 due to electromagnetic coupling.

Referring to fig. 22, fig. 22 is a schematic view illustrating a part of the structure of another embodiment of the camera module 40 shown in fig. 3. The anti-shake motor 42 further includes a conductive member 51. The conductive member 51 fixedly connects the flat portion 4235 of the bridge layer 423 and the substrate 421. At this time, the flat portion 4235 of the bridge layer 423 may be grounded to the substrate 421 through the conductive member 51. Illustratively, the flat portion 4235 of the bridging layer 423 may be fixedly connected to the substrate 421 by soldering. At this time, the conductive member 51 is a solder joint. The number, position, size, and shape of the conductive members 51 are not limited to those illustrated in fig. 22.

It is understood that, when the flat portion 4235 of the bridge layer 423 is grounded to the substrate 421 through the conductive member 51, the flat portion 4235 of the bridge layer 423 may flow out through the conductive member 51 and the substrate 421 due to electromagnetic coupling. In this way, the flat portion 4235 of the bridge layer 423 does not easily interfere with the I2C signal on the first electrode pad 493 and the second electrode pad 494 of the third type electrode 4243, thereby ensuring that the I2C bus communication is normal.

Referring to fig. 23, fig. 23 is a waveform diagram of an interference signal measured on the first electrode pad 493 of the third type electrode 4243 by the anti-shake motor 42 shown in fig. 14. Fig. 23 illustrates that when the flat portion 4235 of the bridge layer 423 and the substrate 421 are not connected to the conductive member 51, the first electrode pad 493 of the third electrode 4243 has a larger interference signal during the test time. The peak of the interfering signal may reach 300 millivolts (mv). The interference signal will interfere to a large extent with the SDA signal on the first electrode pad 493 of the third type electrode 4243. The 300 millivolts (mv) of the present embodiment was measured under a certain detection environment. In other embodiments, the peak value of the interference signal may be other values.

Referring to fig. 24, fig. 24 is a waveform diagram of an interference signal measured on the first electrode pad 493 of the third type electrode 4243 by the anti-shake motor 42 shown in fig. 22. Fig. 24 illustrates waveforms of the interference signals tested on the third type electrode 4243 when the conductive member 51 is fixedly connected to the flat portion 4235 of the bridging layer 423 and the substrate 421. As can be seen from fig. 24, during the test time, the waveform of the interference signal on the first electrode pad 493 of the third type electrode 4243 is substantially disappeared, which means that the interference of the interference signal on the first electrode pad 493 of the third type electrode 4243 is substantially eliminated, thereby ensuring that the I2C bus communication is normal.

As can be understood from fig. 23 and 24, by fixedly connecting the conductive member 51 between the flat portion 4235 of the bridge layer 423 and the substrate 421, the flat portion 4235 of the bridge layer 423 is unlikely to interfere with the SDA signal on the first electrode pad 493 of the third type electrode 4243, thereby ensuring that the I2C bus communication is normal.

Illustratively, the waveform of the interference signal on the third type electrode 4243 may be measured by an oscilloscope or the like to ensure the accuracy of the measured interference wave of the third type electrode 4243.

In other embodiments, the substantial cancellation of the interference signal to the second electrode pad 494 of the third type electrode 4243 is confirmed by the measured interference signal waveform pattern on the second electrode pad 494 of the third type electrode 4243.

Referring to fig. 25, fig. 25 is a schematic partial cross-sectional view of another embodiment of the camera module 40 shown in fig. 3 at line B-B. The anti-shake motor 42 further includes a conductive member 51. The conductive member 51 is fixedly connected between the flat portion 4235 of the bridging layer 423 and the housing 47. At this time, the flat portion 4235 of the bridge layer 423 may be grounded to the housing 47 through the conductive member 51. Illustratively, the flat portion 4235 of the bridging layer 423 may be fixedly attached to the housing 47 by welding (e.g., laser welding, brazing). At this time, the conductive member 51 is a solder joint. The number, position, size, and shape of the conductive members 51 are not limited to those illustrated in fig. 22.

It is understood that when the flat portion 4235 of the bridge layer 423 is grounded to the housing 47 through the conductive member 51, the flat portion 4235 of the bridge layer 423 may flow out through the conductive member 51 and the housing 47 due to electromagnetic coupling. In this way, the flat portion 4235 of the bridge layer 423 does not easily interfere with the I2C signal on the third type electrode 4243, thereby ensuring that the I2C bus communication is normal.

The two grounding manners of the flat portion 4235 of the bridge layer 423 are specifically described above with reference to the related drawings, so as to solve the problem that the flat portion 4235 of the bridge layer 423 affects the normal operation of the I2C bus communication due to electromagnetic coupling. It is understood that in other embodiments, the grounding manner of the flat portion 4235 of the bridging layer 423 is not specifically limited. For example, the flat portion 4235 of the bridge layer 423 may be electrically connected to a ground point through a conductive member 51 such as an FPC or a wire. The location of the ground point is not limited to the substrate 421 and the housing 47 mentioned in the above two embodiments. The ground point may be any ground point in the camera module 40, or even any ground point in the electronic device 100.

Referring to fig. 26, fig. 26 is a schematic view showing a part of the structure of an anti-shake motor 42 according to still another embodiment shown in fig. 4. The first connection portion 4234 and the second connection portion 4236 of the bridging layer 423 are made of conductive materials. At this time, the flat portion 4235 of the bridge layer 423 is electrically connected to the conductive portion 4233 of the bridge layer 423 through the first connection portion 4234 and the second connection portion 4236. At this time, the flat portion 4235 of the bridging layer 423 is no longer a separate metal piece. The first sub-layer 4231 of the bridging layer 423 is an integral conductive layer. In this way, the flat portion 4235 of the bridge layer 423 is less likely to be electromagnetically coupled. The flat portion 4235 of the bridge layer 423 does not interfere with the I2C signal on the third type electrode 4243, thereby ensuring that the I2C bus communication can operate normally.

In a fourth embodiment, referring to fig. 26 again, the flat portion 4235 of the bridging layer 423 is made of an insulating material (e.g. plastic). At this time, the flat portion 4235 of the bridge layer 423 does not electromagnetically couple. In this way, the flat portion 4235 of the bridge layer 423 does not interfere with the I2C signal on the third type electrode 4243, thereby ensuring that the I2C bus communication can operate normally.

In the above, several embodiments are described, each of which can solve the problem that the flat portion 4235 of the bridge layer 423 affects the normal operation of the I2C bus communication due to electromagnetic coupling. In other embodiments, the above-described problems may also be solved by other means. For example, referring to fig. 27, fig. 27 is a schematic view of a part of a structure of another embodiment of the camera module 40 shown in fig. 3. By increasing the thickness D of the adhesive portion 4237 of the second sub-layer 4232 of the bridge layer 423, the distance between the first electrode pad 493 and the second electrode pad 494 of the third type electrode 4243 and the flat portion 4235 is increased, so that the I2C signal on the first electrode pad 493 and the second electrode pad 494 is reduced or avoided by the flat portion 4235 of the bridge layer 423, and the normal operation of the I2C bus communication is ensured.

The foregoing is merely 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 about changes or substitutions within the technical scope of the present application, and the changes and substitutions are intended to be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

1. An anti-shake motor (42) is characterized by comprising a bridging layer (423), an electrode assembly (424), reeds (425) and a plurality of SMA wires (426), wherein the electrode assembly (424) is stacked on one side of the bridging layer (423), the reeds (425) are positioned on one side of the electrode assembly (424) away from the bridging layer (423), the plurality of SMA wires (426) are arranged around the reeds (425), one end of each SMA wire (426) is connected with the reeds (425), and the other end of each SMA wire (426) is connected with the electrode assembly (424);

the electrode assembly (424) comprises a common electrode (4242) and a driving electrode (4241) which are arranged at intervals, the reed (425) is in contact with the common electrode (4242), and the driving electrode (4241) comprises a first conductive sheet (451) and a second conductive sheet (452) which are arranged at intervals;

The bridging layer (423) comprises a bridge (4230), the bridge (4230) connecting the first conductive sheet (451) and the second conductive sheet (452);

the SMA wire (426) comprises a first SMA wire (4264), one end of the first SMA wire (4264) is connected to the reed (425), and the other end is connected to the second conductive sheet (452);

-the common electrode (4242), the reed (425), the first SMA wire (4264), the first conductive sheet (451), the second conductive sheet (452) and the bridge (4230) form part of a current loop;

the bridging layer (423) comprises a first sub-layer (4231) and a second sub-layer (4232) which are stacked, and the electrode assembly (424) is stacked on the second sub-layer (4232);

the first sub-layer (4231) comprises a conductive portion (4233);

the second sub-layer (4232) comprises a first conductive column (4238) and a second conductive column (4239) which are arranged at intervals, and the first conductive column (4238) and the second conductive column (4239) are also connected with the conductive part (4233);

the conductive portion (4233), the first conductive post (4238), and the second conductive post (4239) form the bridge (4230).

2. The anti-shake motor (42) according to claim 1, wherein the second sub-layer (4232) includes an adhesive portion (4237), the adhesive portion (4237) is made of an insulating material, the adhesive portion (4237) is stacked on the conductive portion (4233), the electrode assembly (424) is stacked on the adhesive portion (4237), and the first conductive post (4238) and the second conductive post (4239) are both embedded in the adhesive portion (4237).

3. The anti-shake motor (42) according to claim 2, wherein the first sub-layer (4231) further comprises a flat portion (4235), a first connection portion (4234), and a second connection portion (4236), the flat portion (4235) is disposed opposite to the conductive portion (4233), the first connection portion (4234) is connected between the conductive portion (4233) and the flat portion (4235), the second connection portion (4236) is connected between the conductive portion (4233) and the flat portion (4235), the first connection portion (4234), the second connection portion (4236), and the conductive portion (4233) enclose a ring shape.

4. The anti-shake motor (42) according to claim 3, wherein the first connection portion (4234) and the second connection portion (4236) are both made of an insulating material, the flat portion (4235) is made of a conductive material, and the flat portion (4235) is grounded.

5. The anti-shake motor (42) according to claim 4, wherein the anti-shake motor (42) further comprises a substrate (421), the first sub-layer (4231) is fixed to the substrate (421) by an insulating adhesive layer, and the substrate (421) is grounded;

the anti-shake motor (42) further includes a conductive member (51), and the conductive member (51) connects the flat portion (4235) and the substrate (421).

6. The anti-shake motor (42) according to claim 5, wherein the conductive member (51) is a solder joint.

7. The anti-shake motor (42) according to claim 3, wherein the flat portion (4235), the first connection portion (4234), and the second connection portion (4236) are all insulating materials.

8. The anti-shake motor (42) of claim 3, wherein the flat portion (4235), the first connection portion (4234), and the second connection portion (4236) are all conductive materials.

9. The anti-shake motor (42) of any of claims 1-8, wherein the electrode assembly (424) further comprises first and second electrode pads (493, 494) disposed in spaced relation, the first and second electrode pads (493, 494) further disposed in spaced relation to the drive and common electrodes (4241, 4242);

The first electrode pad (493) is used for transmitting an SDA signal of an I2C signal to the lens motor (431), and the second electrode pad (494) is used for transmitting an SCL signal of the I2C signal to the lens motor (431).

10. The anti-shake motor (42) according to any of claims 1-8, wherein the common electrode (4242) comprises third and fourth opposing and spaced apart conductive sheets (491, 492), the third and fourth conductive sheets (491, 492) being positioned between the first and second conductive sheets (451, 452), the first, second, third and fourth conductive sheets (451, 452, 491, 492) defining a light-transmissive region (490);

the reed (425) comprises a main body part (4251), a first spring arm (4252) and a second spring arm (4253), wherein the first spring arm (4252) and the second spring arm (4253) are respectively connected to two sides of the main body part (4251), the first spring arm (4252) is elastically connected with the third conducting strip (491), the second spring arm (4253) is elastically connected with the fourth conducting strip (492), and the main body part (4251) and the electrode assembly (424) are arranged at intervals.

11. The anti-shake motor (42) of claim 10, wherein the drive electrode (4241) further comprises a W1 electrode (46), the W1 electrode (46) being spaced apart from both the first conductive sheet (451) and the second conductive sheet (452), the W1 electrode (46) being located between the first conductive sheet (451) and the fourth conductive sheet (492);

the SMA wire (426) further comprises a fourth SMA wire (4261), one end of the fourth SMA wire (4261) is connected to the reed (425), and the other end of the fourth SMA wire is connected to the W1 electrode (46);

the common electrode (4242), the reed (425), the fourth SMA wire (4261), and the W1 electrode (46) form part of a current loop.

12. The anti-shake motor (42) according to claim 10, wherein the driving electrode (4241) further comprises a W2 electrode (47), the W2 electrode (47) is disposed at intervals from the first conductive sheet (451) and the second conductive sheet (452), the W2 electrode (47) is located at one side of the first conductive sheet (451) and the second conductive sheet (452), a part of the W2 electrode (47) is located between the third conductive sheet (491) and the fourth conductive sheet (492), and the W2 electrode (47) is disposed close to the third conductive sheet (491) with respect to the fourth conductive sheet (492);

The SMA wire (426) further comprises a second SMA wire (4262), one end of the second SMA wire (4262) is connected to the reed (425), and the other end is connected to the W2 electrode (47);

the common electrode (4242), the reed (425), the second SMA wire (4262) and the W2 electrode (47) form part of a current loop.

13. The anti-shake motor (42) of claim 10, wherein the drive electrode (4241) further comprises a W3 electrode (48), the W3 electrode (48) being disposed spaced apart from the first conductive sheet (451), the second conductive sheet (452), the W3 electrode (48) being located between the first conductive sheet (451) and the fourth conductive sheet (492);

the SMA wire (426) further comprises a third SMA wire (4263), one end of the third SMA wire (4263) is connected to the reed (425), and the other end of the third SMA wire is connected to the W3 electrode (48);

the common electrode (4242), the reed (425), the third SMA wire (4263), and the W3 electrode (48) form part of a current loop.

14. The anti-shake motor (42) of claim 10, wherein the electrode assembly (424) further includes third and fourth electrode pads (495, 496) disposed in spaced relation, the third and fourth electrode pads (495, 496) further disposed in spaced relation to the drive electrode (4241) and the common electrode (4242), the third and fourth electrode pads (495, 496) being located on a side of the third conductive pad (491) remote from the light-transmissive region (490);

The third electrode plate (495) is used for providing a positive electrode of a power supply for the lens motor (431), and the fourth electrode plate (496) is used for providing a negative electrode of the power supply for the lens motor (431).

15. An imaging module (40) comprising a lens (432) and the anti-shake motor (42) of any of claims 1-14, the lens (432) being secured to a reed (425) of the anti-shake motor (42).

16. The camera module (40) of claim 15, wherein the camera module (40) further comprises a module circuit board (41), a light sensing chip (44), a bracket (45), and a filter (46);

the light sensing chip (44) is fixed on the module circuit board (41) and is electrically connected with the module circuit board (41), the bracket (45) is fixed on the module circuit board (41), and the optical filter (46) is fixed on the bracket (45) and is arranged opposite to the light sensing chip (44);

the anti-shake motor (42) is fixed on the bracket (45), and the first conductive sheet (451) of the anti-shake motor (42) and the common electrode (4242) of the electrode assembly (424) are electrically connected to the module circuit board (41).

17. The image capturing module (40) according to claim 15, wherein the image capturing module (40) further comprises a lens motor (431), the lens motor (431) is fixed to the anti-shake motor (42), the lens (432) is fixed to the lens motor (431), and the lens motor (431) is configured to drive the lens (432) to move in an optical axis direction of the image capturing module (40).

18. The camera module (40) of claim 17, wherein the lens motor (431) includes a base (4311), a lower reed (4312), an upper reed (4313), a moving bracket (4314), a first coil (4315), a first magnet (4316), and a motor bracket (4319);

the base (4311) comprises a base (4341) and a plurality of positioning columns (4342), the positioning columns (4342) are fixed on the base (4341), each positioning column (4342) is provided with a first step surface (4343) and a second step surface (4344) which are arranged at intervals, and the base (4341) is fixed on a reed (425) of the anti-shake motor (42);

the lower reed (4312) comprises a first ring body (4351) and a plurality of first connecting pins (4352) arranged at intervals, the first connecting pins (4352) are connected to the periphery of the first ring body (4351), and the plurality of first connecting pins (4352) are respectively fixed on the plurality of first step surfaces (4343) in a one-to-one correspondence manner;

The upper reed (4313) comprises a second ring body (4361) and a plurality of second connecting pins (4362) which are arranged at intervals, the second connecting pins (4362) are connected to the periphery of the second ring body (4361), and the second connecting pins (4362) are respectively fixed on the second step surfaces (4344) in a one-to-one correspondence manner;

the movable bracket (4314) is connected between the first ring body (4351) and the second ring body (4361), the first coil (4315) is fixed on the movable bracket (4314), and the lens (432) is fixed on the movable bracket (4314);

the motor bracket (4319) is fixed on a bridging layer (423) of the anti-shake motor (42);

the first magnet (4316) is fixed to the inner side of the motor bracket (4319) and is disposed opposite to the first coil (4315).

19. The camera shooting module (40) is characterized by comprising a module circuit board (41), an anti-shake motor (42) and a shell (47), wherein the shell (47) is fixed on the module circuit board (41), the shell (47) is grounded through the module circuit board (41), and the anti-shake motor (42) is fixed on the module circuit board (41) and is positioned on the inner side of the shell (47);

The anti-shake motor (42) comprises a bridging layer (423), an electrode assembly (424), reeds (425) and a plurality of SMA wires (426), wherein the electrode assembly (424) is stacked on one side of the bridging layer (423), the reeds (425) are positioned on one side, far away from the bridging layer (423), of the electrode assembly (424), the plurality of SMA wires (426) are arranged around the reeds (425), one end of each SMA wire (426) is connected with the reeds (425), and the other end of each SMA wire (426) is connected with the electrode assembly (424);

the electrode assembly (424) comprises a public electrode (4242) and a driving electrode (4241) which are arranged at intervals, the reed (425) is in contact with the public electrode (4242), the driving electrode (4241) comprises a first conducting strip (451) and a second conducting strip (452) which are arranged at intervals, and the public electrode (4242) is connected with the first conducting strip (451) to form the module circuit board (41);

the first sub-layer (4231) comprises a conductive part (4233), a flat part (4235), a first connection part (4234) and a second connection part (4236), the flat part (4235) is opposite to the conductive part (4233), the first connection part (4234) is connected between the conductive part (4233) and the flat part (4235), the second connection part (4236) is connected between the conductive part (4233) and the flat part (4235), the first connection part (4234), the second connection part (4236) and the conductive part (4233) are surrounded into a ring shape, the materials of the first connection part (4234) and the second connection part (4236) are all insulating materials, and the materials of the flat part (4235) are conductive materials;

The second sub-layer (4232) comprises an adhesive part (4237) and first conductive columns (4238) and second conductive columns (4239) which are arranged at intervals, the adhesive part (4237) is made of insulating materials, the adhesive part (4237) is laminated on the conductive part (4233), the electrode assembly (424) is laminated on the adhesive part (4237), the first conductive columns (4238) and the second conductive columns (4239) are embedded in the adhesive part (4237), and the first conductive columns (4238) are connected with the conductive part (4233) and the first conductive sheet (451); the second conductive post (4239) connects the conductive portion (4233) with the second conductive sheet (452);

the module circuit board (41), the common electrode (4242), the reed (425), the first SMA wire (4264), the first conductive sheet (451), the second conductive sheet (452), the first conductive column (4238), the conductive part (4233) and the second conductive column (4239) form a partial current loop;

The anti-shake motor (42) further includes a conductive member (51), the conductive member (51) connecting the flat portion (4235) and the housing (47).

20. The camera module (40) of claim 19, wherein the conductive member (51) is a solder joint.

21. The camera module (40) of claim 19 or 20, wherein the electrode assembly (424) further comprises first and second electrode pads (493, 494) disposed in spaced relation, the first and second electrode pads (493, 494) being further disposed in spaced relation to the drive and common electrodes (4241, 4242);

22. An electronic device (100) comprising a housing (10) and an imaging module (40) according to any one of claims 15 to 21, the imaging module (40) being arranged in the housing (10).