CN115277990A

CN115277990A - Anti-shake motor, camera module and electronic equipment

Info

Publication number: CN115277990A
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: 2022-11-01
Anticipated expiration: 2041-04-30
Also published as: CN115277990B

Abstract

The application provides an anti-shake motor, camera module and electronic equipment. By arranging the bridging layer on one side of the electrode assembly and connecting the first conducting strip and the second conducting strip of the driving electrode by using the bridging piece of the bridging layer, on one hand, under the environment of the compact structure of the electrode assembly, the problem that the first conducting strip and the second conducting strip which are arranged at intervals are not easy to connect can be solved, namely, the position constraint of the first conducting strip and the second conducting strip 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 electrode on the electrode assembly is more regularly arranged, and the structure of the anti-vibration motor is relatively simple.

Description

Anti-shake motor, camera module and electronic equipment

Technical Field

The application relates to the technical field of making a video recording, especially, relate to an anti-shake motor, module and electronic equipment make a video recording.

Background

With the popularization and development of smart phones, mobile phone photographing becomes a commonly used photographing mode for people, and mobile phones with optical anti-shake function are increasingly popular with users. The optical anti-vibration technology is gradually developing from an electromagnetic force suspended wire type anti-vibration technology of a conventional Voice Coil Motor (VCM) to a memory metal thermoelectric anti-vibration technology of a Shape Memory Alloy (SMA) motor.

A conventional SMA motor comprises 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, the electrode plates of the driving electrode layer are staggered with each other and are arranged in a disordered manner, so that the SMA motor needs to arrange a plurality of leads in the peripheral area of the driving electrode layer to meet the electric connection requirement, and the SMA motor is complex in structure.

Disclosure of Invention

The application provides a simple structure's anti-shake motor, module and electronic equipment make a video recording.

In a first aspect, an embodiment of the present application provides an anti-shake motor. The anti-shake motor comprises 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 spring is located on the side of the electrode assembly remote from the bridging layer. The plurality of SMA wires are arranged around the reed. One end of each SMA wire is connected with the reed, and the other end of each SMA wire is connected with the electrode assembly.

The electrode assembly includes common electrodes and driving electrodes disposed at intervals. The reed is in contact with the common electrode. The driving electrode comprises a first conducting strip and a second conducting strip which are arranged at intervals. The bridge layer includes a bridge. The bridging part connects the first conducting plate and the second conducting plate. The SMA wire includes a first SMA wire. One end of the first SMA wire is connected to the reed, and the other end of the first SMA wire is connected to the second conducting strip. The first conducting strip is used for connecting an external part 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 providing the bridging layer at 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 member of the bridging layer, on one hand, in an environment of a 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, that is, 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 requirement of electric connection without arranging a plurality of leads, so that the driving electrode on the electrode assembly is arranged more regularly, and the structure of the anti-vibration motor is relatively simple.

In addition, compare in the scheme of arranging the lead wire in the peripheral region of drive electrode layer, this scheme has increased one deck bridging layer in the thickness of anti-shake motor, but the thickness on bridging layer can do for a short time by the great degree, and at this moment, compare in the whole volume of anti-shake motor, the volume on bridging layer can be ignored. Therefore, the anti-vibration motor can be greatly reduced in size, and the anti-vibration 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 conducting sheet, the second conducting sheet and the bridge piece, the first SMA wire is electrified and heated, and is contracted, so that corresponding tension 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. 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 realizes optical image anti-shake.

In one implementable form, the bridging layer comprises a first sub-layer and a second sub-layer arranged in a stack. The electrode assembly is stacked on the second sublayer. The first sublayer includes a conductive portion. The second sublayer comprises an adhesive part, and a first conductive column and a second conductive column which are arranged at intervals. The adhesive part is made of an insulating material. 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 portion, and are also connected with the conductive portion. The conductive portion, the first conductive pillar, and the second conductive pillar form a bridge.

It will be appreciated 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 by the conductive portion, the first conductive pillar, and the second conductive pillar. The bridging layer has the effect of being multipurpose. In addition, the structure that the conductive part, the first conductive pillar and the second conductive pillar form the bridging piece is simple and easy to implement.

In one implementable manner, the first sublayer 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 connecting portion is connected between the conductive portion and the flat portion. The second connecting portion is connected between the conductive portion and the flat portion. The flat portion, the first connecting portion, the second connecting portion and the conductive portion are enclosed to form a ring.

It is understood that, in one aspect, since the flat portion, the first connecting portion, the second connecting portion and the conductive portion may enclose a ring shape, in this case, the conductive portion is a part of the ring-shaped structure, and the conductive portion alone cannot form the ring-shaped structure. Thus, when the conductive part transmits a signal, the conductive part does not easily form a loop current, thereby facilitating the transmission of the signal. On the other hand, the flat portion, the first connection portion, the second connection portion and the conductive portion may form a complete plane, and the flatness of the first sub-layer is high.

In one implementable manner, the first sublayer does not include the flat portion, the first connection portion, and the second connection portion. The conductive part is of an annular structure. It will be appreciated that the conductive portion may form a complete plane, the flatness of the first sub-layer being high.

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

It is understood that, in one aspect, the flat portion and the conductive portion are both made of conductive materials. In this case, the same material is easily used for the flat portion and the conductive portion, so that the material types can be reduced, the cost input can be reduced, and the hardness uniformity of the first sublayer can be improved by matching the hardness of the flat portion and the hardness of the conductive portion.

In addition, since the flat portion is grounded, a Pulse Width Modulation (PWM) signal is not easily electromagnetically coupled to the flat portion, and the flat portion does not easily affect normal operations 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 an insulating glue layer. The substrate is grounded. The anti-shake motor further comprises a conductive member. The conductive member connects the flat portion and the substrate.

It is understood that the flat portion is grounded through the structure of the conductive member and the substrate. This approach is simple and easy to implement.

In one implementable form, the conductive features are solder joints.

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 points formed between the flat portions and the substrate are conductive members. The connection mode of the flat part and the substrate is simple and easy to realize. In addition, the connection stability between the flat part and the substrate is reliable.

In an implementation manner, the flat portion, the first connection portion and the second connection portion are all made of insulating materials. Therefore, the PWM signal is not electromagnetically coupled on the flat part, and the flat part is not easy to influence the normal operation of other parts.

In an implementation manner, the flat portion, the first connection portion and the second connection portion are all made of conductive materials. Therefore, 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 work of other parts.

In an implementable manner, the electrode assembly further comprises a first electrode sheet and a second electrode sheet arranged at intervals. The first electrode plate and the second electrode plate are also arranged at intervals between the driving electrode and the common electrode. The first electrode plate and the second electrode plate are positioned between the second conductive sheet and the fourth conductive sheet.

The first electrode pad is used for transmitting a Serial Data (SDA) signal of an inter-integrated circuit (I2C) signal to the lens motor. The second electrode pad is used to transmit a Serial Clock (SCL) signal of the I2C signal 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 camera module is applied to the anti-shake motor.

In addition, according to the scheme, the flat part is grounded, 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 work of the first electrode plate and the second electrode plate.

In one realisable form, the common electrode comprises third and fourth conductive sheets arranged in opposition and spaced apart. The third conducting strip and the fourth conducting strip are positioned between the first conducting strip and the second conducting strip. The first conducting strip, the second conducting strip, the third conducting strip and the fourth conducting strip enclose a light transmission area.

It can be understood that when the first conductive sheet and the second conductive sheet are located on two sides of the light transmission region, the distance between the first conductive sheet and the second conductive sheet is longer, and the first conductive sheet and the second conductive sheet are more difficult to connect with each other. The bridging piece of the implementation mode can also connect the first conducting strip and the second conducting strip which are far away, so that the problem that the first conducting strip and the second conducting strip are not easy to connect is solved.

In addition, the reed includes a main 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 conducting strip. The second spring arm is elastically connected with the fourth conducting strip. The main body portion is spaced apart from the electrode assembly.

It will be appreciated that the body portion of the spring can be moved to any position relative to the electrode assembly when a force is applied to the body portion of the spring by providing a first spring arm resiliently connected to the third conductive sheet, a second spring arm resiliently connected to the fourth conductive sheet and spacing the body portion from the electrode assembly. When the main body part of the reed is used for fixing the lens of the camera module. The main body part of the reed can move to any position relative to the electrode assembly, and 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 an implementable manner, the driving electrode further comprises a W1 electrode, and the W1 electrode is spaced apart from both the first conducting strip and the second conducting strip. The W1 electrode is positioned between the first conducting strip and the fourth conducting strip. The SMA wire further comprises a fourth SMA wire, one end of the fourth SMA wire is connected to the reed, and the other end of the fourth SMA wire is connected to the W1 electrode. The common electrode, the reed, the fourth SMA wire and the 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 electrically 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. 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 realizes optical image anti-shake.

In one implementation, the drive electrodes further include a W2 electrode. The W2 electrode is arranged at intervals with the first conducting strip and the second conducting strip. The W2 electrode is positioned on one side of the first conducting strip and the second conducting strip. And part of the W2 electrode is positioned between the third conducting strip and the fourth conducting strip, and the W2 electrode is arranged close to the third conducting strip relative to the fourth conducting strip. The SMA wire further includes a second SMA wire. One end of the second SMA wire is connected to the reed, and the other end is connected to 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 heats up galvanically and contracts, thereby producing 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. 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 realizes optical image anti-shake.

In one implementable form, the drive electrodes further comprise W3 electrodes. The W3 electrode is arranged at intervals with the first conducting strip and the second conducting strip. The W3 electrode is positioned between the first conducting strip and the fourth conducting strip. The SMA wire further includes a third SMA wire. One end of the third SMA wire is connected to the reed, and the other end is connected to 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 heats up and contracts, thereby causing 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. 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 realizes optical image anti-shake.

In one realizable manner, the electrode assembly further comprises a third electrode sheet and a fourth electrode sheet which are arranged at intervals. The third electrode plate and the fourth electrode plate are also arranged at intervals between the driving electrode and the common electrode. The third electrode plate and the fourth electrode plate are positioned on one side of the third conducting strip, which is far away from the light-transmitting area. The third electrode sheet is used for providing a positive electrode of a power supply for the lens motor. The fourth electrode sheet 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 camera module is applied to the anti-shake motor.

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

It can be understood 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 anti-shake motor can reduce by a great extent, the volume of the camera module can also reduce by a great extent, and the camera module is favorable for realizing miniaturization setting.

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 realizes optical image anti-shake.

In an implementation manner, 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 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 conducting strip 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 plate, the second conductive plate 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 camera module.

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

In one implementation, the lens motor includes a base, a lower spring, an upper spring, a moving bracket, a first coil, a first magnet, and a motor bracket. 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 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 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 support. The lens is fixed on the movable support. The lens support is fixed on the bridging layer of the anti-shake motor. The first magnet is fixed on the inner side of the lens 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 shell is fixed on 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 spring is located on the side of the electrode assembly remote from the bridging layer. The plurality of SMA wires are arranged around the reed. One end of each SMA wire is connected with the reed, and the other end of each SMA wire is connected with the electrode assembly.

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

The bridging layer includes a first sublayer and a second sublayer disposed in a stack. The electrode assembly is stacked on the second sublayer.

The first sublayer 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 connecting portion is connected between the conductive portion and the flat portion. The second connecting portion is connected between the conductive portion and the flat portion. The flat portion, the first connecting portion, the second connecting portion and the conductive portion are enclosed to form a ring. The first connecting portion and the second connecting portion are made of insulating materials. The flat portion is made of a conductive material.

The second sub-layer comprises an adhesive part, and a first conductive column and a second conductive column which are arranged at intervals. The material of the adhesive part is an insulating material. 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 portion. The first conductive column is connected with the conductive part and the first conductive sheet. The second conductive column is connected with the conductive part 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 plate. 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 portion form part of a current loop.

The anti-shake motor further comprises a conductive member. The conductive piece connects the flat part and the shell.

It can be understood that, by providing 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 portion of the bridging layer, on one hand, in an environment of a compact structure of the electrode assembly, the problem that the first conductive sheet and the second conductive sheet arranged at intervals are not easily connected can be solved, that is, 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 electrode on the electrode assembly is more regularly arranged, and the structure of the anti-vibration motor is relatively simple.

In addition, when a signal is applied to a current loop formed by 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, 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. 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 realizes 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 work of other parts. In addition, the flat part is grounded through the structures of the conductive piece, the shell and the like. This approach is simple and easy to implement.

In one implementation, the conductive elements are solder joints.

It will be appreciated that the present solution provides for the flat portion to be connected to the outer shell by a welding process (e.g., laser welding, brazing). At this time, the solder points formed between the flat portion and the case are conductive members. The connection mode of the flat part and the shell is simple and easy to realize. In addition, the connection stability of the flat part and the shell is reliable.

The first electrode pad is used for transmitting a Serial Data (SDA) signal of an 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.

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 work of the first electrode plate and the second electrode plate.

In one implementable form, the common electrode comprises third and fourth conductive sheets which are opposed and spaced apart. The third conducting strip and the fourth conducting strip are located between the first conducting strip and the second conducting strip. The first conducting strip, the second conducting strip, the third conducting strip and the fourth conducting strip enclose a light transmission area.

It can be understood that, when the first conductive sheet and the second conductive sheet are located at both sides of the light-transmitting region, the distance between the first conductive sheet and the second conductive sheet is relatively long, and it is more difficult to connect the first conductive sheet and the second conductive sheet to each other. The bridging piece of the implementation mode can also connect the first conducting strip and the second conducting strip which are far away, so that the problem that the first conducting strip and the second conducting strip are not easy to connect is solved.

It will be appreciated that the first spring arm is arranged to resiliently couple the third conductive sheet, the second spring arm is arranged to resiliently couple the fourth conductive sheet and the body portion is spaced from the electrode assembly such that the body portion of the spring can move to any position relative to the electrode assembly when a force is applied to the body portion of the spring. When the main body part of the reed is used for fixing the lens of the camera module. The main body part of the reed can move to any position relative to the electrode assembly, and 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 an implementable manner, the electrode assembly further comprises a third electrode sheet and a fourth electrode sheet arranged at intervals. The third electrode plate and the fourth electrode plate are also arranged at intervals between the driving electrode and the common electrode. The third electrode plate and the fourth electrode plate are positioned on one side of the third conducting strip, which is far away from the light-transmitting area. The third electrode plate is used for providing a positive pole of a 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 electric connection mode of the lens motor and 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 fourth aspect, an embodiment of the present application provides an electronic device. The electronic equipment comprises a shell and the camera module. The camera module is arranged on the shell.

It can be understood that, when the structure of the camera module is relatively simple, the complexity of the structure of the electronic device can be reduced to a greater extent.

Drawings

In order to explain the technical solutions of the embodiments of the present application, the drawings required to be used in the embodiments of the present application will be described below.

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

FIG. 2 isbase:Sub>A schematic partial cross-sectional view of the electronic device shown in FIG. 1 at line A-A;

fig. 3 is a schematic structural diagram 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 taken along 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 shown in FIG. 4;

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

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

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

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

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

FIG. 13 is a schematic cross-sectional view of the bridge 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 structure 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 partial cross-sectional view of the portion of the camera module shown in FIG. 16 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 of 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 part of the structure 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 diagram of an interference signal measured on the first electrode sheet of the third type electrode of the anti-shake motor shown in fig. 14;

fig. 24 is a waveform diagram of an interference signal measured on the first electrode pad of the third type 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 taken along line B-B;

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

fig. 27 is a partial schematic structural view of still another embodiment of the camera module 40 shown in fig. 3.

Detailed Description

The embodiments of the present application are described below with reference to the drawings.

In the description of the embodiments of the present application, it should be noted that the term "connected" is to be interpreted broadly, unless explicitly stated or limited otherwise, and for example, "connected" may or may not be detachably connected; may be directly connected or indirectly connected through an intermediate. The term "fixedly connected" means that they are connected to each other and their relative positions do not change after the connection. "rotationally coupled" means coupled to each other and capable of relative rotation after being coupled. The directional terms used in the embodiments of the present application, such as "upper", "lower", "inner", "outer", etc., are used solely in the direction of reference to the drawings, and thus, are used for better and clearer illustration and understanding of the embodiments of the present application, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered 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 disclosure. The electronic device 100 may be a device having a camera module, such as a mobile phone, a tablet personal computer (tablet personal computer), a laptop computer (laptop computer), a Personal Digital Assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, augmented Reality (AR) glasses, an AR helmet, virtual Reality (VR) glasses, or a VR helmet. The electronic device 100 of the embodiment shown in fig. 1 is illustrated as a mobile phone.

Referring to fig. 1 and 2, fig. 2 isbase:Sub>A partial cross-sectional view of the electronic device 100 shown in fig. 1 atbase:Sub>A linebase:Sub>A-base:Sub>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, fig. 2 and the related drawings below only schematically show some components included in the electronic device 100, and the actual shape, the actual size, the actual position and the actual configuration of the components are not limited by fig. 1, fig. 2 and the following drawings. In addition, since the host circuit board 30 and the camera module 40 are internal structures of the electronic apparatus 100, fig. 1 schematically shows the host circuit board 30 and the camera module 40 by dotted 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 rear cover 12. The rear cover 12 is fixedly coupled to one side of the bezel 11. The screen 20 is fixed on the side of the frame 11 away from the rear cover 12. The screen 20, the bezel 11 and the rear cover 12 together enclose the inside of the electronic device 100. The interior of the electronic device 100 may be used to house devices of the electronic device 100 such as a battery, a receiver, or a microphone. The screen 20 may be used to display images, among other things. The screen 20 may be a flat screen or a curved screen. The display screen of the screen 20 may be an organic light-emitting diode (OLED) display screen, an active matrix organic light-emitting diode (AMOLED) display screen, an active-matrix organic light-emitting diode (AMOLED) display screen, a Liquid Crystal Display (LCD) or the like.

Referring to fig. 1 and fig. 2 again, the host circuit board 30 is fixed inside the electronic device 100. The host circuit board 30 may be provided with a Central Processing Unit (CPU), a Graphics Processing Unit (GPU), a Universal Flash Storage (UFS), or other chips.

The imaging module 40 is provided inside the electronic apparatus 100. The camera module 40 can 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 camera module 40 may be a normal camera module shown in fig. 2 (the optical axis direction of the camera module is the thickness direction of the electronic apparatus 100), or may be a periscopic camera module (for example, the optical axis direction of the camera 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 transmit signals to each other.

Illustratively, the rear cover 12 is provided with a light transmission hole 13. The light transmission hole 13 penetrates through both surfaces of the rear cover 12 opposite to each other. Further, the electronic apparatus 100 includes a camera trim 51 and a cover plate 52. The cover plate 52 is fixedly attached to the inner surface of the camera trim 51. Part of the camera ornament 51 is fixed to the inner surface of the rear cover 12. Part of the camera ornament 51 is in contact with the hole wall of the light-transmitting hole 13. The camera trim 51 and the cover plate 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 inside of the electronic device 100 through the light-transmitting hole 13. The cover plate 52 is made of a transparent material (e.g., glass or plastic). Ambient light external to the electronic device 100 can pass through the cover plate 52 into the interior of the electronic device 100. The camera module 40 collects ambient light entering the electronic device 100.

Referring to fig. 3 and 4, fig. 3 is a schematic structural diagram of the camera 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 holder 45, an optical filter 46, and a housing 47. The photosensitive chip 44 is also referred to as an image sensor, or a photosensitive element, among others. The light sensing 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 conjunction with fig. 4, fig. 5 is a partial cross-sectional view of the camera module 40 shown in fig. 3 at a line B-B. The photosensitive chip 44 is fixed on the module circuit board 41 and electrically connected to the module circuit board 41. At this time, the photosensitive chip 44 and the module circuit board 41 can transmit signals to each other.

In addition, the bracket 45 is fixed to the module circuit board 41. The bracket 45 and the photosensitive chip 44 are located 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 on the support 45 and is located in the light passing hole 451. The filter 46 is also disposed opposite the light sensing chip 44. The filter 46 may be used to filter infrared light or blue light of ambient light, so as to ensure that the photosensitive chip 44 has better imaging quality. In other embodiments, when the image capturing module 40 has other structures, the arrangement of the bracket 45 and the filter 46 can be flexibly set according to the requirement. In addition, in some camera module structures, the camera module may not include the support 45 and the filter 46.

The anti-shake motor 42 is fixed to the bracket 45 on the side away from the module board 41. The anti-shake motor 42 is used for 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 in the optical axis direction of the image pickup 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 on the side of the anti-shake motor 42 away from the module circuit board 41. It should be noted that the connection manner of the lens 432 and the anti-shake motor 42 will be described in detail below with reference to the relevant drawings. And will not be described in detail herein. 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, so as to realize 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 shift of the lens 432 due to shaking, thereby improving the imaging quality of the image capturing module 40.

Referring again to fig. 5 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 extends 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 can shield electromagnetic waves outside the housing 47 to prevent the electromagnetic waves outside 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, the module circuit board 41 and the host circuit board 30 can transmit signals to each other.

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 spring 4312, an upper spring 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. Exemplarily, the positioning columns 4342 are four in number. The four positioning columns 4342 are respectively located at four corners of the base 4341.

The lower spring plate 4312 includes a first ring 4351 and a plurality of first connecting pins 4352 arranged at intervals. The first connection pin 4352 is connected to a periphery of the first ring 4351. Illustratively, the number of the first connection pins 4352 is four.

The upper spring plate 4313 includes a second ring 4361 and a plurality of second connecting legs 4362 disposed at intervals. The second connecting leg 4362 is connected to the periphery of the second ring 4361. Illustratively, the number of the second connection legs 4362 is four.

Referring to fig. 7 in conjunction with fig. 6, fig. 7 is a schematic partial structure diagram of the lens assembly 43 shown in fig. 4. Each positioning column 4342 has a first step surface 4343 and a second step surface 4344 arranged at an interval. 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 column 4342.

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

Referring to fig. 8 in conjunction with fig. 6 and 7, fig. 8 is a schematic partial structure diagram of the lens assembly 43 shown in fig. 4. The second connecting legs 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 plurality of positioning pillars 4342.

In addition, the moving bracket 4314 is connected between the first ring 4351 and the second ring 4361. It is understood that, since the lower spring plate 4312 and the upper spring plate 4313 have elasticity, the moving bracket 4314 can move up and down against the elasticity of the lower spring plate 4312 and the upper spring plate 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 in conjunction with 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 holder 4319 is fixed to the anti-shake motor 42. The partial lens 432 passes through the motor holder 4319 and protrudes outside the motor holder 4319.

In addition, the first magnet 4316 and the second magnet 4318 are fixed to the lens holder 433. 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 can cooperate with the first coil 4315, and the second magnet 4318 can cooperate with the second coil 4317 to push the moving bracket 4314 to move along the optical axis of the camera module 40, so as to push the lens 432 to move along the optical axis of the camera module 40.

In other embodiments, when the lens motor 431 has other structures, the lens 432 can be directly fixed 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 bridge layer 423, an electrode assembly 424, a reed 425, and an SMA wire 426. The SMA wire 426 is made of Shape Memory Alloy (SMA) material, such as nitinol. SMA is a generic term for a class of metals having a shape memory effect. In the present embodiment, the number of SMA wires 426 is four. The SMA wires 426 include 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.

The substrate 421 is ring-shaped. The substrate 421 includes an upper surface 4211 and a lower surface 4212 disposed opposite one another. The substrate 421 may be made of metal. Such as steel plate. Thus, the substrate 421 has a good hardness. Illustratively, the base plate 421 is provided with a first through hole 4213 and a second through hole 4214 which are arranged at intervals. The first and second through

holes

4213 and 4214 each penetrate the upper surface 4211 of the base plate 421 and the lower surface 4212 of the base plate 421. The first through hole 4213 and the second through hole 4214 are located at both side portions of the base plate 421, respectively.

Referring to fig. 10 in conjunction with fig. 9, fig. 10 is a partial structural schematic diagram of the anti-shake motor 42 shown in fig. 4. The first adhesive layer 422 is annular. The first adhesive layer 422 is fixed on the upper surface 4211 of the substrate 421. The first glue layer 422 may partially or completely 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 adhesive 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 has a ring shape. The bridge layer 423 includes a first sublayer 4231 and a second sublayer 4232 that are arranged in a stack. The first sublayer 4231 and the second sublayer 4232 are both annular. In addition, the first sublayer 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 conjunction with fig. 11, fig. 12 is a partial schematic structural view 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 disposed opposite to the flat portion 4235. The second connection portion 4236 also connects 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 an insulating material, the conductive portion 4233 and the substrate 421 can be disposed in an insulating manner.

In this embodiment, the conductive portion 4233 is a part of a ring structure, and the conductive portion 4233 is not a continuous ring structure. The conductive portions 4233 may be arc-shaped, strip-shaped, or the like. It should be understood that when the first sub-layer 4231 only includes the conductive portion 4233, i.e. 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 glue layer 422 due to the arc shape of the conductive portion 4233. Thus, the flatness of the first sub-layer 4231 is poor, which is disadvantageous for high-precision installation of the anti-shake motor 42. In the 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, and thus the first adhesive layer 422 is annularly covered, so as to significantly improve the flatness of the first sub-layer 4231.

The first connection portion 4234 and the second connection portion 4236 may be made of an insulating material. 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 flatness of the first sublayer 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 does not form a continuous annular structure due to the flat portion 4235.

In other embodiments, the first sublayer 4231 may also not include the first connection portion 4234, the second connection portion 4236, or the flat portion 4235.

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

Illustratively, the flat portion 4235 is made of the same material as the conductive portion 4233. For example, a metal material may be used for both the flat portion 4235 and the conductive portion 4233. The metal material may be copper, gold, silver, aluminum, or the like. Thus, on one hand, the first sublayer 4231 does not significantly increase the cost investment of the first sublayer 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 sublayer 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 a different conductive material from that of 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 has a ring shape. The adhesive portion 4237 includes an upper surface 4271 and a lower surface 4272 that are oppositely disposed. The adhesive portion 4237 is made of an insulating material. The first conductive column 4238 and the second conductive column 4239 are both made of conductive materials.

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

Referring to fig. 13 in conjunction with fig. 12, fig. 13 is a cross-sectional view of the bridge layer shown in fig. 9 at the C-C line. Fig. 13 illustrates a schematic structural diagram enclosed by two small dashed circles, and a schematic structural diagram enclosed by two large dashed circles. The structural schematic enclosed by the large dotted circle is an enlargement of the structural schematic enclosed by the small dotted circle. The same schematic appears in the following figures, which are the same as in fig. 13. Which will not be described in detail below.

The adhesive portion 4237 is fixed on a 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 sublayer 4231. The lower surface 4272 of the adhesive portion 4237 faces the first sublayer 4231.

In addition, the first conductive pillar 4238 and the second conductive pillar 4239 are both embedded in the adhesive portion 4237 at an interval. The first conductive pillar 4238 and the second conductive pillar 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 relative 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 pillar 4238 and the second conductive pillar 4239 are exposed relative to 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 column 4238 and the second conductive column 4239 can be electrically connected by the conductive portion 4233. At this time, the first conductive pillar 4238, the second conductive pillar 4239 and the conductive portion 4233 form a bridge 4230. As an example. The bridge 4230 may be a "U" shaped structure. In other embodiments, the bridge 4230 may also be shaped otherwise.

Referring to fig. 14, fig. 14 is an enlarged schematic view of the electrode assembly 424 shown in fig. 9. The electrode assembly 424 is annular. Illustratively, the electrode assembly 424 is of a "round inside and round outside" configuration. The electrode assembly 424 has a light transmission region 490. The light-transmitting region 490 serves to allow ambient light passing through the lens 432 to pass through the electrode assembly 424.

The electrode assembly 424 includes first and

second sides

1 and 2 disposed opposite to each other, and third and

fourth sides

3 and 4 disposed opposite to each other. 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 region 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 of electrode 4241, a second type of electrode 4242, a third type of electrode 4243 and a fourth type of electrode 4244, which are spaced apart. Illustratively, the first-type electrode 4241 may be a driving electrode (also referred to as a wire pole or a w pole) of the anti-shake motor 42. The second-type electrode 4242 may be a common electrode (also referred to as a com pole or opin pole) of the anti-shake motor 42. The third type electrode 4243 may be electrically connected to the lens motor 431 for providing an I2C signal to the lens motor 431 (see fig. 5). Illustratively, the third type electrode 4243 may be electrically connected to the lens motor 431 through a Flexible Printed Circuit (FPC), a wire, or the like. The fourth 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 Printed Circuit (FPC), a wire, or the like. In other embodiments, the electrode assembly 424 may not include the third and fourth types of

electrodes

4243, 4244.

The first-type electrodes 4241 include a W0 electrode 45, a W1 electrode 46, a W2 electrode 47, and a W3 electrode 48, which are arranged at intervals.

Referring to fig. 14 again, the W0 electrode 45 includes a first conductive sheet 451, a second conductive sheet 452, and a first fixing claw 453, which are spaced and disposed oppositely. 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 portion of the second conductive sheet 452 forms a portion of the third corner 7 of the electrode assembly 424 and the other end portion of the second conductive sheet 452 is adjacent to the fourth corner 8 of the electrode assembly 424. In addition, the first fixing jaw 453 is fixed to the second conductive plate 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 sheet 451 includes a connection segment 4511 and an extension segment 4512. The connecting segment 4511 of the first conductive sheet 451 is connected with the extending segment 4512 of the first conductive sheet 451 in a bending manner. Illustratively, the connection segment 4511 of the first conductive sheet 451 and the extension segment 4512 of the first conductive sheet 451 may be disposed at a right angle.

Here, the W1 electrode 46 is located on the first conductive sheet 451 side of the W0 electrode 45. The W1 electrode 46 includes a connection section 461, an extension section 462, and a second fixing claw 463. The connecting segment 461 of the W1 electrode 46 is part 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 connection segment 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 a right angle to the connection 461 of the W1 electrode 46.

In addition, a second fixing claw 463 is fixed to the extension 462 of the W1 electrode 46. In this embodiment, the second locking claw 463 may have a bent structure. In other embodiments, the second locking claw 463 may have other structures.

Wherein the W2 electrode 47 is positioned at one side of the first conductive sheet 451 and the second conductive sheet 452. 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 connection section 471, an extension section 472, and a third fixing jaw 473. The connecting segment 471 of the W2 electrode 47 is a portion of the first side 1 of the electrode assembly 424. A partial extension of the W2 electrode 47 is a portion 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 section 471 of the W2 electrode 47 in a bent manner. The other end of the extension 472 of the W2 electrode 47 is a portion of the third corner 7 of the electrode assembly 424. The other end of the extension 472 of the W2 electrode 47 is disposed apart from the second conductive sheet 452 of the W0 electrode 45. Illustratively, the extension 472 of the W2 electrode 47 is disposed at a right angle 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 fixing jaw 473 may have a bent structure. In other embodiments, the third fixed jaw 473 may have other structures.

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 fixing jaw 483. The connection 481 of the W3 electrode 48 is located between the first conductive sheet 451 of the W0 electrode 45 and the connection 461 of the W1 electrode 46. The extension 482 of the W3 electrode 48 is located inside the extension 462 of the W1 electrode 46. The connection section 481 of the W3 electrode 48 is part 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 apart 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 a right angle to the connection 481 of the W3 electrode 48.

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

Referring to fig. 14 again, the second-type electrode 4242 includes a third conductive sheet 491 and a fourth conductive sheet 492 which are spaced apart and opposite to each other.

The third conductive sheet 491 is located on 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 away 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 strip 491 includes a connection segment 4911 and an extension segment 4912. The connection segment 4911 of the third conductive sheet 491 is a portion of the first side 1 of the electrode assembly 424. The extended section 4912 of the third conductive sheet 491 is a 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 connected to the connection 4911 of the third conductive sheet 491 in a bent manner. 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 lies outboard of the extension 472 of the W2 electrode 47. Illustratively, the extended section 4912 of the third conductive sheet 491 is disposed at a right angle to the connection section 4911 of the third conductive sheet 491.

In addition, the fourth conductive sheet 492 is a portion 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. The 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 includes a first electrode piece 493 and a second electrode piece 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 transmits 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 conjunction with fig. 14, fig. 15 is a schematic structural view of the electrode assembly 424 shown in 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 from the second conductive pad 452 and the fourth conductive pad 492. The first electrode piece 493 includes a connecting section 4931 and an extending section 4932. The connecting segment 4931 of the first electrode sheet 493 is a portion of the second side 2 of the electrode assembly 424. The extension 4932 of the first electrode pad 493 has one end that is part of the second side 2 of the electrode assembly 424 and the other end that is part of the fourth side 4 of the electrode assembly 424. In addition, one end of the extension section 4932 of the first electrode plate 493 is connected with the connection section 4931 of the first electrode plate 493 in a bent manner. The other end of the extension 4932 of the first electrode plate 493 is spaced from the fourth conductive sheet 492 of the second-type electrode 4242. Illustratively, the extension section 4932 of the first electrode sheet 493 is disposed at a right angle to the connection section 4931 of the first electrode sheet 493.

The second electrode sheet 494 is located on a side of the first electrode sheet 493 away from the second conductive sheet 452, that is, the second electrode sheet 494 is located outside the first electrode sheet 493. The second electrode sheet 494 is the fourth corner 8 of the electrode assembly 424. The second electrode pad 494 includes a connection segment 4941 and an extension segment 4942. The extension 4942 of the second electrode sheet 494 is connected to the connection 4941 of the second electrode sheet 494 by bending. Illustratively, the extension 4942 of the second electrode pad 494 is disposed at a right angle to the connection 4941 of the second electrode pad 494.

Referring again to fig. 14, the fourth type electrode 4244 includes a third electrode pad 495 and a fourth electrode pad 496 that are spaced apart from each other. Illustratively, the third electrode pad 495 is used for providing the positive electrode of the power supply to the lens motor 431 (see fig. 5). The fourth electrode 496 is used for providing a negative electrode of the power supply to the lens motor 431 (see fig. 5).

Among them, the third electrode pad 495 is located on a side of the third conductive sheet 491 far from the W2 electrode 47. The third electrode pad 495 includes a connection segment 4951 and an extension 4952. The connection segment 4951 of the third electrode pad 495 is a portion of the first side 1 of the electrode assembly 424. One end of the extension 4952 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 4952 of the third electrode pad 495 is bent and connected to the connection 4951 of the third electrode pad 495. The other end of the extension 4952 of the third electrode pad 495 is spaced from the third conductive sheet 491 of the second-type electrode 4242. Illustratively, the extension 4952 of the third electrode pad 495 is disposed at a right angle to the connection 4951 of the third electrode pad 495.

The fourth electrode pad 496 is located on a side of the third electrode pad 495 away from the third conductive sheet 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 a second corner 6 of the electrode assembly 424. The fourth electrode pad 496 includes a connector segment 4961 and an extension segment 4962. The extension 4962 of the fourth pole piece 496 is crimped to the connection 4961 of the fourth pole piece 496. Illustratively, the extension 4962 of the fourth pole piece 496 is disposed at a right angle to the connector 4961 of the fourth pole piece 496.

Referring to fig. 16 in conjunction with fig. 14 and 15, fig. 16 is a schematic partial structural diagram of the camera module 40 shown in fig. 3. The substrate 421 of the anti-shake motor 42 is fixed on the surface of the bracket 45 away from the module circuit board 41. In addition, 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 4952 of the third electrode sheet 495 of the fourth type electrode 4244, and the extension 4962 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 segment 4511 of the first conductive sheet 451 of the W0 electrode 45, the connection segment 461 of the W1 electrode 46, the connection segment 471 of the W2 electrode 47, the connection segment 481 of the W3 electrode 48, the connection segment 4911 of the third conductive sheet 491 of the second type electrode 4242, the connection segment 4951 of the third electrode pad 495 of the fourth type electrode 4244, and the connection segment 4961 of the fourth electrode pad 496 of the fourth type electrode 4244 are located at 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 conjunction with fig. 16, fig. 17 is a partial cross-sectional view of a portion of the camera module 40 shown in fig. 16 along the D-D line. The extension 4512 of the first conductive sheet 451 of the W0 electrode 45 is also connected to the first conductive pillar 4238 of the bridge layer 423. The second conductive sheet 452 of the W0 electrode 45 is connected to the second conductive pillar 4239 of the bridge layer 423. In this way, the first conductive sheet 451 of the W0 electrode 45 can be electrically connected to the second conductive sheet 452 of the W0 electrode 45 through the first conductive pillar 4238, the conductive portion 4233 of the bridge layer 423, and the second conductive pillar 4239.

Referring to fig. 18 in conjunction with fig. 15, fig. 18 is a schematic structural view of a portion of the image capturing module 40 shown in fig. 16 at another angle. The connection segment 4931 of the first electrode piece 493 of the third type electrode 4243 and the connection segment 4941 of the second electrode piece 494 of the third type electrode 4243 are positioned on the other side of the bridging layer 423, penetrate 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 a signal to the third type electrode 4243.

Referring to FIG. 19, FIG. 19 is an enlarged view of reed 425 of FIG. 9. The reed 425 has a ring shape. Reed 425 includes a body portion 4251, a first spring arm 4252, and a second spring arm 4253. The first and

second spring arms

4252, 4253 may each be L-shaped. The reed 425 is made of a conductive material.

The main body 4251 includes a first side 4254 and a second side 4255, which are oppositely disposed, and a third side 4256 and a fourth side 4257, which are oppositely disposed. The third and

fourth sides

4256, 4257 are connected between the first and

second sides

4254, 4255.

The main body portion 4251 includes a first movable dog 4281, a second movable dog 4282, a third movable dog 4283, and a fourth movable dog 4284, which are spaced apart from each other. The first movable jaw 4281 and the second movable jaw 4282 are located at a connection of the second side portion 4255 and the third side portion 4256. The third movable jaw 4283 and the fourth movable jaw 4284 are located at a connection of the first side portion 4254 and the fourth side portion 4257. The shapes of the first movable jaw 4281, the second movable jaw 4282, the third movable jaw 4283 and the fourth movable jaw 4284 are not limited to the block shape illustrated in fig. 19. The specific design can be flexibly set according to the requirement.

The first spring arm 4252 includes a first fixing end 4285 and a second fixing 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 the side of the third side portion 4256. The first spring arm 4252 is disposed obliquely with respect 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 4257. The second spring arm 4253 is obliquely arranged with respect to the main body portion 4251.

Referring to fig. 20 in conjunction with fig. 16 and 19, fig. 20 is a schematic partial structural diagram of the camera module 40 shown in fig. 3. A reed 425 is disposed on the side of electrode assembly 424 distal from bridge layer 423. The second fixed end 4286 of the first spring arm 4252 of spring 425 is secured to the extended section 4912 of the third conductive sheet 491 of the second type electrode 4242. The second spring arm 4253 of the reed 425 is fixed to the fourth conductive strip 492 of the second type electrode 4242 (see fig. 16 for the main part). A height difference 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 can be understood that, since a height difference 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, and 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 first spring arm 4252 is elastically connected to the third conductive sheet 491 of the second-type electrode 4242. The second spring arm 4253 is elastically connected to the fourth conductive sheet 492. Body portion 4251 of reed 425 is spaced apart from electrode assembly 424, i.e., body portion 4251 of reed 425 does not contact the electrode tabs of 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 arrangement of the reed 425 structure can refer to the arrangement of the lower reed 4312 (see fig. 6) of the lens motor 431. For example, the body 4251 of the reed 425 is provided with a plurality of first connecting pins arranged at intervals. In addition, the holder 45 may be configured in a manner similar to that of the base 4311 (see fig. 6) of the lens motor 431. For example, the support 45 is provided with a plurality of positioning posts. The first connecting pin of the reed 425 is fixed on the positioning column of the bracket 45, so that the connection stability of the reed 425 is improved.

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

Referring to fig. 20 again in conjunction with fig. 14 and 17, 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 pillar 4239, the conductive portion 4233 of the bridge layer 423, the first conductive pillar 4238, and the first conductive sheet 451 of the W0 electrode 45 constitute a first current loop. It is to be understood that the manner of coupling the first SMA wire 4264 with the first fixing jaw 453 and the fourth movable jaw 4284 of the reed 425 is not particularly limited in the present 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 form a second current loop. It is to be understood that the manner of connection of the second SMA wire 4262 with the third fixed jaw 473 and the second movable jaw 4282 of the reed 425 is not particularly limited in the present application.

In addition, one end of the third SMA wire 4263 is fixed to the fourth fixing claw 483 of the W3 electrode 48, and is electrically connected to the fourth fixing claw 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 form a third current loop. It is to be understood that the connection manner of the third SMA wire 4263 with the fourth fixed jaw 483 and the third movable jaw 4283 of the reed 425 is not specifically 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. In this way, 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 is to be understood 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 the present application.

It is appreciated that the first, second, third and

fourth SMA wires

4264, 4262, 4263 and 4261 may be scaled by transmitting Pulse Width Modulation (PWM) signals in the first, second, third and fourth current loops. Thus, first SMA wire 4264, second SMA wire 4262, third SMA wire 4263, and fourth SMA wire 4261 may cause reed 425 to move relative to base plate 421.

Referring to fig. 21 again, in combination with fig. 20, fig. 21 is a schematic partial structural diagram of the camera module 40 shown in fig. 5. The base 4311 of the lens motor 431 is fixed to the body 4251 of the reed 425. At this time, the lens 432 is fixed to the body 4251 of the reed 425 via the mount 4311. It will be appreciated that when the first, second, third and

fourth SMA wires

4264, 4262, 4263 and 4261 move the reed 425, the lens 432 may also move relative to each other. Thus, 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, so as to counteract or reduce the displacement of the lens 432 caused by shaking, 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 first magnet 4316 and the second magnet 4318 are fixed to the motor holder 4319, the lens motor 431 is not fixed to the body 4251 of the reed 425. The body 4251 of the reed 425 is less likely to cause material fatigue.

In the present embodiment, a structure of the anti-shake motor 42 is specifically described by referring to the related drawings. The anti-shake motor 42 has a bridge layer 423. The first conductive sheet 451 of the W0 electrode 45 and the second conductive sheet 452 of the W0 electrode 45 are connected by the first conductive column 4238 of the bridge layer 423, the second conductive column 4239 of the bridge layer 423, and the conductive portion 4233 of the bridge layer 423, on one hand, in an environment of a compact structure of the electrode assembly 424, the problem that the first conductive sheet 451 and the second conductive sheet 452 arranged at intervals are not easily connected can be solved, that is, the position constraint of the first conductive sheet 451 and the second conductive sheet 452 can be released; on the other hand, the peripheral region of the electrode assembly 424 may not need to arrange many leads to meet the electrical connection requirement, so that the electrode pads on the electrode assembly 424 are more regularly arranged, 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, although the bridging layer 423 is added to the thickness of the anti-shake motor 42, the thickness of the bridging layer 423 can be made small to a greater extent, and at this time, the volume of the bridging layer 423 can be ignored compared with the overall volume of the anti-shake motor 42. Therefore, the volume of the anti-shake motor 42 of the present embodiment 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 is illustrated with only one bridging layer 423. In other embodiments, the number of layers of the bridging layer 423 may be greater than one. Each bridging layer 423 may be used to make electrical connection of two conductive strips.

In the present embodiment, when the first current loop, the second current loop, the third current loop and the fourth current loop transmit the PWM signal, the first current loop, the second current loop, the third current loop and the fourth current loop generate the electromagnetic radiation. In the radiation space of the first current loop, the second current loop, the third current loop and the fourth current loop, the independent metal pieces generate electromagnetic coupling. The voltage generated by the free-standing metallic piece is released everywhere. At this time, the magnetic field generated by the independent conductive member may interfere with the I2C signal on the third type electrode 4243 (see fig. 14), so that the I2C signal on the third type electrode 4243 has an interference pulse, which may cause abnormal I2C bus communication. Referring to fig. 12, while the flat portion 4235 of the bridge layer 423 of the present embodiment makes the first sub-layer 4231 of the bridge layer 423 have a better flatness, 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 component. Thus, when the flat portion 4235 of the bridge layer 423 is electromagnetically coupled, the flat portion 4235 of the bridge layer 423 interferes with the I2C signal on the third type electrode 4243 (see fig. 14), which causes an I2C bus communication abnormality. Several embodiments will be described in detail below with reference to the related drawings, each of which 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 the electromagnetic coupling.

Referring to fig. 22, fig. 22 is a partial schematic structural view 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 is fixedly connected to the flat portion 4235 of the bridging 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 bridge layer 423 may be fixedly connected with the substrate 421 by welding. At this time, the conductive member 51 is a solder point. It should be noted that 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, a voltage generated by the flat portion 4235 of the bridge layer 423 due to electromagnetic coupling may flow out through the conductive member 51 and the substrate 421. In this way, the flat portion 4235 of the bridge layer 423 is not likely to interfere with the I2C signals on the first electrode piece 493 and the second electrode piece 494 of the third-type electrode 4243, so as to ensure that the I2C bus communication is normal.

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

Referring to fig. 24, fig. 24 is a waveform diagram of an interference signal measured by the anti-shake motor 42 shown in fig. 22 on the first electrode pad 493 of the third type electrode 4243. Fig. 24 is a waveform diagram illustrating an interference signal tested on the third type electrode 4243 when the conductive member 51 is fixedly connected to the flat portion 4235 of the bridge 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 substantially disappears, which indicates that the interference signal substantially eliminates the interference on the first electrode pad 493 of the third type electrode 4243, thereby ensuring that the I2C bus communication is normal.

It can be understood from fig. 23 and 24 that, 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 normal I2C bus communication.

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

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

Referring to fig. 25, fig. 25 is a partial cross-sectional view of another embodiment of the camera module 40 shown in fig. 3 at a 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 bridge layer 423 and the housing 47. At this time, the flat portion 4235 of the bridge layer 423 may be grounded to the case 47 through the conductive member 51. Illustratively, the flat portion 4235 of the bridge layer 423 may be fixedly connected to the housing 47 by welding (e.g., laser welding, brazing). At this time, the conductive member 51 is a solder point. It should be noted that 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, a voltage generated by the flat portion 4235 of the bridge layer 423 due to electromagnetic coupling may flow out through the conductive member 51 and the housing 47. Thus, the flat portion 4235 of the bridge layer 423 is not easy to interfere with the I2C signal on the third type electrode 4243, thereby ensuring that the I2C bus communication is normal.

The above description specifically describes two grounding manners of the flat portion 4235 of the bridge layer 423 in conjunction with the related drawings, so as to solve the problem that the normal operation of the I2C bus communication is affected by the electromagnetic coupling generated by the flat portion 4235 of the bridge layer 423. It is understood that in other embodiments, the grounding manner of the flat portion 4235 of the bridge layer 423 is not particularly 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 two embodiments above. The position of the grounding point may be any grounding position in the camera module 40, and even the position of the grounding point may be any grounding position in the electronic device 100.

Referring to fig. 26, fig. 26 is a partial schematic structural view of another embodiment of the anti-shake motor 42 shown in fig. 4. The first connection portion 4234 and the second connection portion 4236 of the bridge layer 423 are both 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 via the first connection portion 4234 and the second connection portion 4236. At this point, the flat portion 4235 of the bridge layer 423 is no longer a separate piece of metal. The first sublayer 4231 of the bridging layer 423 is a unitary conductive layer. Thus, 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 work normally.

In a fourth embodiment, referring to fig. 26 again, the flat portion 4235 of the bridge layer 423 is made of an insulating material (e.g., plastic). At this time, the flat portion 4235 of the bridge layer 423 is not electromagnetically coupled. 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 work normally.

Several embodiments are described above, and each embodiment can solve the problem that the flat portion 4235 of the bridge layer 423 affects the normal operation of I2C bus communication due to electromagnetic coupling. In other embodiments, the above-described problems may be solved in other ways. For example, referring to fig. 27, fig. 27 is a partial schematic structural diagram 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 sublayer 4232 of the bridge layer 423, the distance between the first electrode piece 493 and the second electrode piece 494 of the third electrode 4243 and the flat portion 4235 is increased, so that interference of the flat portion 4235 of the bridge layer 423 with I2C signals on the first electrode piece 493 and the second electrode piece 494 is reduced or avoided, and normal operation of I2C bus communication is guaranteed.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall 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) comprising a bridge layer (423), an electrode assembly (424), a reed (425), and a plurality of SMA wires (426), wherein the electrode assembly (424) is stacked on one side of the bridge layer (423), the reed (425) is located on one side of the electrode assembly (424) away from the bridge layer (423), the plurality of SMA wires (426) are arranged around the reed (425), and one end of each SMA wire (426) is connected to the reed (425) and the other end is connected to 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 conducting strip (451) and a second conducting strip (452) which are arranged at intervals;

the bridge layer (423) comprising 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), the first SMA wire (4264) being connected at one end to the reed (425) and at the other end to the second conductive sheet (452);

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

2. The anti-shake motor (42) according to claim 1, wherein the bridge layer (423) comprises a first sub-layer (4231) and a second sub-layer (4232) arranged in a stack, the electrode assembly (424) being stacked on the second sub-layer (4232);

the first sublayer (4231) comprises a conductive portion (4233);

the second sub-layer (4232) comprises an adhesive part (4237) and first and second conductive columns (4238, 4239) arranged at intervals, the adhesive part (4237) is made of an insulating material, the adhesive part (4237) is laminated on the conductive part (4233), the electrode assembly (424) is stacked on the adhesive part (4237), the first and second conductive columns (4238, 4239) are embedded in the adhesive part (4237), and the first and second conductive columns (4238, 4239) are further connected with the conductive part (4233);

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

3. The anti-shake motor (42) according to claim 2, wherein the first sublayer (4231) further comprises a flat portion (4235), a first connection portion (4234) and a second connection portion (4236), the flat portion (4235) being disposed opposite to the conductive portion (4233), the first connection portion (4234) being connected between the conductive portion (4233) and the flat portion (4235), the second connection portion (4236) being 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) enclosing 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) through an insulating glue layer, and the substrate (421) is grounded;

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

6. Anti-shake motor (42) according to claim 5, characterised in that the conductive elements (51) are solder joints.

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) according to 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) according to any one of claims 1-8, wherein the electrode assembly (424) further comprises a first electrode sheet (493) and a second electrode sheet (494) that are spaced apart, the first electrode sheet (493) and the second electrode sheet (494) further being spaced apart from the drive electrode (4241) and the common electrode (4242);

the first electrode plate (493) is used for transmitting an SDA signal of an I2C signal to the lens motor (431), and the second electrode plate (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 one of claims 1 to 9, wherein the common electrode (4242) comprises a third conductive sheet (491) and a fourth conductive sheet (492) which are oppositely and spaced apart, the third conductive sheet (491) and the fourth conductive sheet (492) being located between the first conductive sheet (451) and the second conductive sheet (452), the first conductive sheet (451), the second conductive sheet (452), the third conductive sheet (491) and the fourth conductive sheet (492) enclosing a light-transmitting region (490);

the reed (425) comprises a main body part (4251), a first spring arm (4252) and a second spring arm (4253), 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) according to claim 10, wherein the drive electrode (4241) further comprises a W1 electrode (46), the W1 electrode (46) is spaced apart from both the first conductive sheet (451) and the second conductive sheet (452), and the W1 electrode (46) is 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 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 or 11, wherein the drive electrode (4241) further comprises a W2 electrode (47), the W2 electrode (47) is disposed at a distance from both the first conductive sheet (451) and the second conductive sheet (452), the W2 electrode (47) is located on 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) being connected to the reed (425) and the other end being 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) according to any one of claims 10 to 12, wherein the drive electrodes (4241) further comprise a W3 electrode (48), the W3 electrode (48) being spaced apart from the first conductive sheet (451) and 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) being connected to the reed (425) and the other end being 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) according to any one of claims 10-13, wherein the electrode assembly (424) further comprises a third electrode pad (495) and a fourth electrode pad (496) which are arranged at intervals, the third electrode pad (495) and the fourth electrode pad (496) are also arranged at intervals with the drive electrode (4241) and the common electrode (4242), and the third electrode pad (495) and the fourth electrode pad (496) are located on one side of the third conductive sheet (491) away from the light transmission region (490);

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

15. A camera module (40) comprising a lens (432) and an anti-shake motor (42) according to any one of claims 1 to 14, the lens (432) being fixed to a reed (425) of the anti-shake motor (42).

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

the photosensitive 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 photosensitive chip (44);

the anti-shake motor (42) is fixed on the support (45), and the first conducting strip (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 camera module (40) according to claim 15 or 16, wherein the camera 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 used for driving the lens (432) to move along the optical axis direction of the camera module (40).

18. The camera module (40) according to claim 17, wherein the lens motor (431) comprises 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 first connecting pins (4352) are respectively fixed on the 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) 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 moving support (4314) is connected between the first ring body (4351) and the second ring body (4361), the first coil (4315) is fixed to the moving support (4314), and the lens (432) is fixed to the moving support (4314);

the lens support (433) is fixed on a bridging layer (423) of the anti-shake motor (42);

the first magnet (4316) is fixed on the inner side of the lens holder (433) and is arranged opposite to the first coil (4315).

19. A camera 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 bridge layer (423), an electrode assembly (424), a reed (425) and a plurality of SMA wires (426), wherein the electrode assembly (424) is stacked on one side of the bridge layer (423), the reed (425) is positioned on one side of the electrode assembly (424) far away from the bridge layer (423), the plurality of SMA wires (426) are arranged around the reed (425), one end of each SMA wire (426) is connected with the reed (425), and the other end of each SMA wire 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), the driving electrode (4241) comprises a first conducting strip (451) and a second conducting strip (452) which are arranged at intervals, and the common electrode (4242) and the first conducting strip (451) are connected with the module circuit board (41);

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

the first sublayer (4231) comprises a conductive part (4233), a flat part (4235), a first connecting part (4234) and a second connecting part (4236), wherein the flat part (4235) is arranged opposite to the conductive part (4233), the first connecting part (4234) is connected between the conductive part (4233) and the flat part (4235), the second connecting part (4236) is connected between the conductive part (4233) and the flat part (4235), the first connecting part (4234), the second connecting part (4236) and the conductive part (4233) are encircled to form a ring shape, the first connecting part (4234) and the second connecting part (4236) are made of insulating materials, and the flat part (4235) is made of conductive materials;

the second sub-layer (4232) comprises an adhesive part (4237) and first and second conductive columns (4238, 4239) arranged at intervals, the adhesive part (4237) is made of an insulating material, the adhesive part (4237) is laminated on the conductive part (4233), the electrode assembly (424) is stacked on the adhesive part (4237), the first conductive column (4238) and the second conductive column (4239) are embedded in the adhesive part (4237), and the first conductive column (4238) connects 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 pillar (4238), the conductive portion (4233), and the second conductive pillar (4239) form a partial current loop;

the anti-shake motor (42) further comprises a conductive member (51), and the conductive member (51) connects 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) according to claim 19 or 20, wherein the electrode assembly (424) further comprises a first electrode sheet (493) and a second electrode sheet (494) which are arranged at intervals, and the first electrode sheet (493) and the second electrode sheet (494) are further arranged at intervals from the drive electrode (4241) and the common electrode (4242);

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