CN113467036B - Zoom lens, camera module, electronic equipment and focusing method thereof - Google Patents

Abstract

The present application provides a zoom lens. The zoom lens includes a housing, a first motor, a first lens and a self-locking assembly. The first motor is mounted on the inner side of the housing. The first lens is mounted on the first motor. The first motor is used for driving the first lens to move along the optical axis direction of the zoom lens. The self-locking assembly includes a limiting member, a connecting member and a force applying member. The limiting member is located between the first motor and the housing. One end of the connecting piece is fixed on the casing, the other end is fixed on the limiting piece, and the force applying piece is connected with the limiting piece. When the force-applying member does not exert a force on the limiting member, the limiting member is in contact with the first motor, so that a static friction force is formed between the limiting member and the first motor. When the force applying member applies force to the limiting member, the limiting member is separated from the first motor. The zoom lens is not easily affected by external movement or shaking during the shooting process. When the zoom lens is applied to a camera module and an electronic device, the electronic device has better shooting performance.

Description

Zoom lens, camera module, electronic equipment and focusing method thereof

technical field

The present application relates to the technical field of photography, and in particular to a zoom lens, a camera module, electronic equipment and a focusing method thereof.

Background technique

With the development of electronic equipment technology, people hope that the shooting performance of mobile phones can be better and better. However, during the shooting process of a traditional mobile phone, the captured image is easily deformed or blurred due to external movement or shaking, which seriously affects the user experience of the mobile phone. Therefore, it is very important to set up a camera module with better stability and less likely to affect the shooting quality due to external motion or shaking.

Contents of the invention

The present application provides a zoom lens, a camera module and an electronic device that are not easily affected by external motion or shaking.

In a first aspect, the present application provides a zoom lens. The zoom lens includes a casing, a first motor, a first lens and a self-locking assembly. The first motor is installed inside the housing. The first lens is mounted on the first motor. The first motor is used to drive the first lens to move along the optical axis of the zoom lens. It can be understood that the optical axis of the zoom lens is an axis passing through the lens center in the zoom lens.

The self-locking assembly includes a limiting part, a connecting part and a force applying part. The limiting member is located between the first motor and the housing. One end of the connecting piece is fixed to the housing, and the other end is fixed to the limiting piece. The forcing member is connected to the limiting member.

When the force applying member does not apply force to the limiting member, the limiting member is in contact with the first motor, so that a static friction force is formed between the first motors. In one embodiment, when the force applying member does not receive a control signal, the force applying member does not generate an active force applied to the limiting member. In one embodiment, the force applying member receives a control signal, but the force applying member does not respond to the control signal, and at this time, the force applying member does not generate a force applied to the limiting member.

When the force applying member applies force to the limiting member, the limiting member is separated from the first motor. In one embodiment, the force applying member receives a control signal. The forcing member responds to the control signal and generates a force applied to the limiting member. In other embodiments, a force is applied to the limiting member through a mechanical button, so that the force applying member applies a force to the limiting member.

In this embodiment, by setting the zoom lens with a self-locking component, when the force applying member does not apply force to the limiting component, the limiting component of the self-locking component can The connecting member is in contact with the first motor under pressure, and forms static friction with the first motor. At this time, the first motor is locked by the self-locking assembly. In this way, the stability of the first mirror on the first motor is better. In other words, the first lens on the first motor is not easy to move due to external shaking or vibration. When a user is taking a photo, the captured image is less likely to be distorted or blurred. In particular, when the user takes pictures during exercise, the image captured by the camera module will have a better effect.

In addition, compared with the solution of locking the first motor by providing a current signal to the first motor, in this embodiment, the self-locking assembly can be locked when the force applying member responds to the control signal the first motor. At this time, the zoom lens may disconnect the current signal transmitted to the first motor. In this way, the zoom lens can greatly reduce energy consumption and heat generation during use.

In addition, when the force applying member responds to the control signal, the self-locking assembly can lock the first motor, thereby ensuring that the first motor is not likely to collide with other components in the zoom lens, that is, The risk of impact of the first motor is reduced.

In addition, when the force applying member responds to the control signal, the self-locking assembly can lock the first motor, so that the first motor is less likely to be forced to vibrate, thereby reducing the pressure of the first motor. risk of damage. It can be understood that the forced vibration refers to the vibration that occurs under the action of a periodic external force.

In addition, in this embodiment, when the force applying member applies a force to the limiting member in response to a control signal, the limiting member or the connecting member is deformed, so that the limiting member and the limiting member The first motor is separated. In this way, when the first motor needs to drive the first lens to move along the optical axis of the zoom lens, the self-locking assembly will not affect the movement of the first motor.

In one embodiment, when the force applying member does not apply force to the limiting member, the limiting member is in contact with the first motor under the pressure of the connecting member, and is in contact with the first motor. Static friction is formed between the motors.

It can be understood that the connecting member in this embodiment can not only connect the limiting member to the housing, but also be used to apply force to the limiting member. The connecting piece has the effect of "one thing with multiple functions". In this case, the structure of the zoom lens is relatively simple.

In addition, when the connecting piece exerts a force on the limiting piece, the limiting piece will also exert a reaction force on the connecting piece. At this time, because the connecting member is connected between the limiting member and the housing, the reaction force can be transmitted to the housing. The overall strength of the shell is relatively high, which can effectively resist the reaction force.

In one embodiment, when the force applying member applies a force to the limiting member in response to a control signal, the limiting member or the connecting member is deformed, so that the limiting member is in contact with the limiting member. The first motor is separated.

It can be understood that, compared with the solution of separating the limiting member from the first motor by additionally setting a driving device in the zoom lens, this embodiment uses the limiting element of the self-locking assembly The part or the connecting part is deformed so that the limiting part is separated from the first motor, which has a simple structure and does not increase the complexity of the structure of the zoom lens.

In one embodiment, the connecting part is connected to the middle part of the limiting part. Two ends of the force applying member are respectively connected to two ends of the limiting member. It can be understood that, when the force applying member does not apply force to the limiting member, both ends of the limiting member are in contact with the first motor and form static friction with the first motor force. When the force-applying member applies a pulling force to the limiting member, both ends of the limiting member approach each other to separate from the first motor.

In this embodiment, the limiting member is separated from the first motor by applying a pulling force to the limiting member through the force applying member. The force application method is simple, and the self-locking component has a simple structure and is easy to assemble.

In one embodiment, the force applying member is a shape memory alloy. It is understood that the shape memory alloy is capable of generating a contraction force when the shape memory alloy responds to a control signal. At this time, a pulling force can be applied to the limiting member by the contraction force. When the shape memory alloy is not responding to a control signal, the shape memory alloy is in a natural state. At this time, the shape memory alloy does not exert force on the limiting member.

It can be understood that the shape memory alloy in this embodiment can use its own deformation to produce a force on the limiting member by additionally providing a driving device to make the force applying member apply a force to the limiting member. force. The force application method is simple, the structure is simple, and it does not occupy too much space inside the camera module.

In one embodiment, the limiting member includes a first conductive segment, a first insulating segment, and a second conductive segment connected in sequence. One end of the forcing member is fixed to the first conductive segment, and the other end is fixed to the second conductive segment. The first conductive segment, the forcing member and the second conductive segment form a current path. It can be understood that a current path refers to a loop that enables current transmission.

In this embodiment, the limiting member can not only be used to lock the first motor, but also can be used to form a part of the current path. The limiting member has the effect of "one thing with multiple functions".

In an implementation manner, the current path further includes a first circuit board. The first circuit board is fixed on the casing. Both the first conductive segment and the second conductive segment are electrically connected to the first circuit board.

It can be understood that by arranging the first circuit board, the first circuit board is used to transmit control signals to the first conductive segment, the force applying member and the second conductive segment. The way of transmitting the control signal is simple.

In other implementation manners, the current path may further include a first wire and a second wire. The first wire is electrically connected to the first conductive segment. The second wire is electrically connected to the second conductive segment.

In one embodiment, the connecting piece is a rigid piece. The connecting piece is connected to the middle of the limiting piece. The number of the force applying members is two. One of the urging members is connected between one end of the limiting member and the housing, and the other urging member is connected between the other end of the limiting member and the housing.

It can be understood that when the two force-applying members do not apply force to the limiting member, both ends of the limiting member contact the first motor under the pressure of the connecting member, and are in contact with the first motor. Static friction is formed between the first motors. When the two force applying members respond to the control signal, they respectively apply pulling force to the two ends of the limiting member, and the two ends of the limiting member are close to each other so as to separate from the first motor.

In one embodiment, the force applying member is a shape memory alloy. It is understood that the shape memory alloy is capable of generating a contraction force when the shape memory alloy responds to a control signal. At this time, the contraction force can exert a pulling force on both ends of the limiting member, so that the two ends of the limiting member are close to each other. When the shape memory alloy is not responding to a control signal, the shape memory alloy is in a natural state. At this time, the shape memory alloy does not exert force on the limiting member.

It can be understood that, compared with the solution that the force applying member applies a force to the limiting member by additionally setting a driving device, the shape memory alloy in this embodiment can use its own deformation to produce a force on the limiting member. The force of the limiter. The force application method is simple, the structure is simple, and it does not occupy too much space inside the camera module.

In one embodiment, each of the forcing members includes a magnet and a coil. The two magnets are respectively fixed on the two ends of the limiting member. Both the coils are fixed on the casing. The two coils are arranged opposite to the two magnets in a one-to-one correspondence. It can be understood that, when the two coils respond to the control signal, the two coils will generate magnetic attraction force with the magnets respectively disposed opposite to each other. In this way, the magnet can exert a pulling force on the limiting member through the magnetic attraction force.

It can be understood that, compared with the solution in which the force-applying member applies a force to the limiting member through an additional drive device, the magnet and the coil in this embodiment can use the generated magnetic attraction force to generate a force on the limiting member. The force of the limiting member. The force application method is simple, the structure is simple, and it does not occupy too much space inside the camera module.

In one embodiment, the connecting element is an elastic element. The elastic member may be, but not limited to, a shrapnel or a spring. The connecting piece is connected to the middle of the limiting piece. The number of the force applying members is two. One of the forcing members is connected between one end of the limiting member and the shell. The other force applying member is connected between the other end of the limiting member and the shell.

It can be understood that when the two force-applying members do not apply force to the limiting member, both ends of the limiting member contact the first motor under the pressure of the connecting member, and are in contact with the first motor. Static friction is formed between the first motors. When the two force applying members respond to the control signal, they respectively apply pulling force to both ends of the limiting member, and the limiting member compresses the connecting member to separate from the first motor.

In one embodiment, the zoom lens further includes a Hall sensor and a detection magnet. The Hall sensor is fixed inside the housing. The detection magnet is fixed on the first motor. The Hall sensor is used to detect the magnetic field strength of the detection magnet.

It can be understood that, when the user needs to focus the camera module (eg, 10 times focus), the first motor drives the first lens to move along the optical axis of the zoom lens. At this time, the first motor is likely to fail to move to the target position. In this embodiment, the hall sensor is used to detect the magnetic field strength of the detection magnet, and the magnitude of the magnetic field strength and the preset magnetic field strength at the 10 times focus point is judged. When the magnetic field strength is not equal to the preset magnetic field strength at 10x focus, the Hall sensor can feed back to the external device. At this time, the external device can provide a compensating current signal to the first motor, so that the first motor moves to the target position, that is, the position of 10 times focusing. In this way, the focusing accuracy of the camera module can be improved through the Hall sensor and the detection magnet, so that the effect of the image captured by the camera module is better.

In one embodiment, the zoom lens further includes guide rails. The guide rail is fixed on the inner side of the casing. The first motor is slidingly connected to the guide rail.

In this embodiment, the first motor is slidably connected to the slide rail, so that the first motor drives the first lens to move along the optical axis of the zoom lens. In this way, on the one hand, the moving range of the first motor can be set larger, so that the focusing range of the zoom lens is larger. On the other hand, the guide rail can serve as a positioning function for the first motor, and at this time, the stability of the first motor is better.

In one embodiment, the zoom lens further includes a second motor and a fixed focus assembly. The second motor is located on one side of the first motor. The second motor is mounted with the first mirror. The second motor is movable along the optical axis direction of the zoom lens. The fixed focus assembly is equipped with the lens. The fixed focus assembly is located on a side of the first motor facing away from the second motor, and is fixed to the housing.

In this embodiment, by additionally providing a second motor, the second motor is used to drive the first lens located on the second motor to move along the optical axis direction of the zoom lens. At this time, the focus range of the zoom lens is larger.

In one embodiment, the zoom lens further includes a base, an upper reed and a lower reed. The base has a first stepped surface and a second stepped surface in the direction of the optical axis of the zoom lens. The peripheral edge of the upper spring is fixed on the first stepped surface. The peripheral edge of the lower spring is fixed on the second stepped surface. The first motor has a front surface and a rear surface in an optical axis direction of the zoom lens. The front surface of the first motor is fixed to the upper reed. The rear surface of the first motor is fixed to the lower reed. It can be understood that the first motor can overcome the elastic forces of the upper reed and the lower reed, so as to move in the direction of the optical axis of the zoom lens.

In a second aspect, the present application provides a camera module. The camera module includes a second circuit board, a photosensitive chip and the zoom lens described in the first aspect. Both the photosensitive chip and the zoom lens are fixed on the second circuit board. The zoom lens is used to project ambient light to the photosensitive chip.

It can be understood that when the zoom lens is applied to the camera module, the image captured by the camera module is not likely to be deformed or blurred. In particular, when the user takes pictures during exercise, the image captured by the camera module will have a better effect. In addition, the camera module can greatly reduce energy consumption and heat generation during use.

In a third aspect, the present application provides an electronic device. The electronic equipment includes a casing and the above-mentioned camera module. The camera module is installed inside the casing. The housing is provided with a first light-transmitting portion. The camera module is used to collect ambient light passing through the first light-transmitting part.

In this embodiment, when the camera module is applied to the electronic device, the image captured by the electronic device is unlikely to be deformed or blurred. Especially, when the user takes pictures during exercise, the effect of the images taken by the electronic device is also better. In addition, the electronic equipment can greatly reduce energy consumption and heat generation during use.

In addition, the first motor of the zoom lens is not likely to collide with other components in the zoom lens, that is, the risk of collision of the first motor is reduced. In this way, the stability of the electronic device is also high.

Furthermore, the first motor is not prone to forced vibrations, and the risk of damage to the first motor is low. In this way, the stability of the electronic device is also high. It can be understood that the forced vibration refers to the vibration that occurs under the action of a periodic external force.

In one embodiment, the electronic device includes a prism motor. The prism motor is installed inside the housing. The prism motor is used to reflect the ambient light passing through the first transparent part to the camera module.

It can be understood that, by arranging the prism motor, the optical axis of the camera module is not restricted to extend along the Z-axis direction. For example, the optical axis of the camera module can also be parallel to the X axis or the Y axis. In this way, because the electronic device has a wider space in the X-axis or Y-axis direction, the focusing range of the camera module can be significantly increased, thereby realizing high-magnification focusing of the camera module.

In one embodiment, the prism motor includes a prism motor housing and a prism. The prism is located inside the prism motor casing, and the prism can be movably connected to the prism motor casing.

In a fourth aspect, the present application provides a focusing method for an electronic device. The electronic device includes a zoom lens. The zoom lens includes a casing, a first motor, a first lens and a self-locking assembly. The first motor is installed inside the casing. The first lens is mounted on the first motor. The first motor is used to drive the first lens to move along the optical axis of the zoom lens. It can be understood that the optical axis of the zoom lens is an axis passing through the lens center in the zoom lens. The self-locking assembly includes a limiting part, a connecting part and a force applying part. The limiting member is located between the first motor and the housing. One end of the connecting piece is fixed to the housing, and the other end is fixed to the limiting piece. The forcing member is connected to the limiting member.

The methods include:

receiving a focusing signal, sending a control signal to the force applying member, the force applying member responding to the control signal, and applying a force to the limiting member, so that the limiting member and the first motor separate.

The first motor is controlled to drive the first lens to move along the optical axis of the zoom lens.

When the first motor moves to the target position, the sending of the control signal to the force applying member is stopped, and the limiting member is in contact with the first motor and generates static friction force with the first motor.

In this embodiment, when the force applying member does not apply force to the limiting member, the limiting member of the self-locking assembly is in contact with the first motor, and is in contact with the first motor. form static friction. At this time, the first motor is locked by the self-locking assembly. In this way, the stability of the first mirror on the first motor is better. In other words, the first lens on the first motor is not easy to move due to external shaking or vibration. When a user is taking a photo, the captured image is less likely to be distorted or blurred. In particular, when the user takes pictures during exercise, the image captured by the camera module will have a better effect.

In one embodiment, when the force applying member does not apply force to the limiting member, the limiting member is in contact with the first motor under the pressure of the connecting member, and is in contact with the first motor. Static friction is formed between the motors.

It can be understood that the connecting member in this embodiment can not only connect the limiting member to the housing, but also be used to apply force to the limiting member. The connecting piece has the effect of "one thing with multiple functions". In this case, the structure of the zoom lens is relatively simple.

In addition, when the connecting piece exerts a force on the limiting piece, the limiting piece will also exert a reaction force on the connecting piece. At this time, because the connecting member is connected between the limiting member and the housing, the reaction force can be transmitted to the housing. The overall strength of the shell is relatively high, which can effectively resist the reaction force.

In one embodiment, when the force applying member applies a force to the limiting member in response to a control signal, the limiting member or the connecting member is deformed, so that the limiting member is in contact with the limiting member. The first motor is separated.

It can be understood that, compared with the solution of separating the limiting member from the first motor by additionally setting a driving device in the zoom lens, this embodiment uses the limiting element of the self-locking assembly The part or the connecting part is deformed so that the limiting part is separated from the first motor, which has a simple structure and does not increase the complexity of the structure of the zoom lens.

In one embodiment, the zoom lens further includes a Hall sensor and a detection magnet. The Hall sensor is fixed inside the housing. The detection magnet is fixed on the first motor.

After "controlling the first motor to drive the first lens to move along the optical axis of the zoom lens", the method further includes:

The Hall sensor detects the magnetic field strength of the detection magnet;

When it is confirmed that the magnetic field strength is not equal to the preset magnetic field strength, the first motor is controlled to drive the first lens to move to the target position along the optical axis of the zoom lens.

It can be understood that, when the user needs to focus the camera module (eg, 10 times focus), the first motor drives the first lens to move along the optical axis of the zoom lens. At this time, the first motor is likely to fail to move to the target position. In this embodiment, the hall sensor is used to detect the magnetic field strength of the detection magnet, and the magnitude of the magnetic field strength and the preset magnetic field strength at the 10 times focus point is judged. When the magnetic field strength is not equal to the preset magnetic field strength at 10x focus, the Hall sensor can feed back to the external device. At this time, the external device can provide a compensating current signal to the first motor, so that the first motor moves to the target position, that is, the position of 10 times focusing. In this way, the focusing accuracy of the camera module can be improved through the Hall sensor and the detection magnet, so that the effect of the image captured by the camera module is better.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present application, the drawings that need to be used in the embodiments of the present application will be described below.

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

FIG. 2 is a partially exploded schematic diagram of the electronic device shown in FIG. 1;

Fig. 3 is a partial cross-sectional schematic view of the electronic device shown in Fig. 1 at the line A-A;

FIG. 4 is a schematic structural diagram of a camera module of the electronic device shown in FIG. 1;

Fig. 5 is a partially exploded schematic view of the camera module shown in Fig. 4;

Fig. 6 is an enlarged schematic diagram at B of the electronic device shown in Fig. 3;

Fig. 7 is a structural schematic diagram of a frame of the camera module shown in Fig. 4;

Fig. 8 is a partially exploded schematic view of the camera module shown in Fig. 4;

Fig. 9 is a partially exploded schematic view of the camera module shown in Fig. 4;

Fig. 10 is a partially exploded schematic diagram of another embodiment of the camera module shown in Fig. 4;

Fig. 11 is a partially exploded schematic diagram of the camera module shown in Fig. 4;

Fig. 12 is a structural schematic diagram of an implementation manner of the self-locking assembly of the camera module shown in Fig. 11 at an angle;

Fig. 13 is a structural schematic view of the self-locking assembly shown in Fig. 12 at another angle;

Fig. 14a is a schematic diagram of an embodiment of a partial structure of the camera module shown in Fig. 4 in a state;

Fig. 14b is a schematic diagram of the partial structure of the camera module shown in Fig. 14a in another state;

Fig. 15 is a schematic diagram of another embodiment of the partial structure of the camera module shown in Fig. 4;

Fig. 16a is a structural schematic diagram of another embodiment of the self-locking assembly of the camera module shown in Fig. 11;

Fig. 16b is a schematic diagram of another embodiment of the partial structure of the camera module shown in Fig. 4 in a state;

Fig. 16c is a schematic diagram of the partial structure of the camera module shown in Fig. 16b in another state;

Fig. 17a is a schematic diagram of yet another embodiment of the partial structure of the camera module shown in Fig. 4 in a state;

Fig. 17b is a schematic diagram of the partial structure of the camera module shown in Fig. 17a in another state;

Fig. 18a is a schematic diagram of yet another embodiment of the partial structure of the camera module shown in Fig. 4 in one state;

Fig. 18b is a schematic diagram of the partial structure of the camera module shown in Fig. 18a in another state;

Fig. 19a is a schematic diagram of yet another embodiment of the partial structure of the camera module shown in Fig. 4 in one state;

Fig. 19b is a schematic diagram of a partial structure of the camera module shown in Fig. 19a in another state;

FIG. 20 is a schematic flowchart of a focusing method for the electronic device shown in FIG. 1;

Fig. 21 is a schematic structural diagram of another implementation of the electronic device provided by the embodiment of the present application;

Fig. 22 is a partial cross-sectional schematic view of the electronic device shown in Fig. 21 at the line C-C;

FIG. 23 is a partially exploded schematic view of the camera module of the electronic device shown in FIG. 21;

Fig. 24 is an exploded schematic view of the zoom lens of the camera module shown in Fig. 23;

Fig. 25 is a partial structural schematic diagram of the zoom lens shown in Fig. 24;

Fig. 26 is a partial structural schematic diagram of the zoom lens shown in Fig. 24;

FIG. 27 is an exploded schematic diagram of a partial structure of the zoom lens shown in FIG. 24 at an angle;

FIG. 28 is an exploded schematic diagram of a partial structure of the zoom lens shown in FIG. 27 at another angle;

Fig. 29 is a schematic partial cross-sectional view of the zoom lens shown in Fig. 23 at the line D-D;

Fig. 30 is a partial structural schematic diagram of the zoom lens shown in Fig. 24;

FIG. 31 is a partial structural diagram of the zoom lens shown in FIG. 24 .

Detailed ways

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

Please refer to FIG. 1 . FIG. 1 is a schematic structural diagram of an implementation manner of an electronic device provided in an embodiment of the present application. The electronic device 1 may be a mobile phone, a tablet personal computer, a laptop computer, a personal digital assistant (PDA), a camera, a personal computer, a notebook computer, a vehicle-mounted device, a wearable device, an enhanced Reality (augmented reality, AR) glasses, AR helmet, virtual reality (virtual reality, VR) glasses or VR helmet. The electronic device 1 of the embodiment shown in FIG. 1 is described by taking a mobile phone as an example. As shown in FIGS. 1 and 2 , FIG. 2 is a partially exploded schematic diagram of the electronic device 1 shown in FIG. 1 . For ease of description, define the width direction of the electronic device 1 as the X axis. The length direction of the electronic device 1 is the Y axis. The thickness direction of the electronic device 1 is the Z axis.

In this application, the electronic device 1 is less likely to be affected by external motion or shaking during the shooting process, that is, the shooting effect of the electronic device 1 is better. The following will specifically introduce the two configurations of the electronic device 1 in conjunction with the relevant drawings.

The first embodiment: please refer to FIG. 2 , the electronic device 1 includes a casing 60 , a screen 70 , a host circuit board 80 , a prism motor 90 and a camera module 100 .

Wherein, the casing 60 can be used to support the screen 70 and related components in the electronic device 1 .

The casing 60 includes a rear cover 61 and a frame 62 . The rear cover 61 is opposite to the screen 70 . The back cover 61 and the screen 70 are mounted on opposite sides of the frame 62 . At this time, the back cover 61 , the frame 62 and the screen 70 jointly define a receiving space 63 . The receiving space 63 can be used to accommodate components of the electronic device 1 , such as batteries, speakers, microphones or earpieces. As shown in FIG. 1 , FIG. 1 illustrates a substantially cuboid structure surrounded by the rear cover 61 , the frame 62 and the screen 70 .

In one embodiment, the rear cover 61 can be fixedly connected to the frame 62 by glue. In another embodiment, the rear cover 61 and the frame 62 may also form an integral structure, that is, the rear cover 61 and the frame 62 are integrally formed.

In addition, the rear cover 61 is provided with a first light-transmitting portion 64 . The first light-transmitting portion 64 is used for allowing ambient light to enter the receiving space 63 .

In one embodiment, the rear cover 61 is provided with a light inlet hole. The rear cover 61 is fixed with a transparent protective cover. The transparent protective cover covers the light inlet. At this time, the first light-transmitting portion 64 is formed by the transparent protective cover and the light-incoming hole.

Among them, the screen 70 is used for displaying images, characters and the like. The screen 70 is mounted on the casing 60 .

In one embodiment, the screen 70 includes a protective cover 71 and a display screen 72 . The protective cover 71 is stacked on the display screen 72 . The protective cover 71 can be arranged close to the display screen 72 , and can be mainly used to protect the display screen 72 from dust. The material of the protective cover 71 may be, but not limited to, glass. The display screen 72 may be an organic light-emitting diode (OLED) display, an active matrix organic light-emitting diode or an active-matrix organic light-emitting diode (AMOLED) display, Mini organic light-emitting diode (mini organic light-emitting diode) display, micro organic light-emitting diode (micro organic light-emitting diode) display, micro organic light-emitting diode (micro organic light-emitting diode) display, quantum dot light-emitting diode (quantum dot light emitting diodes, QLED) display.

Please refer to FIG. 2 again, the host circuit board 80 is installed in the receiving space 63 . The host circuit board 80 can be used for mounting electronic components of the electronic device 1 . For example, electronic components include a processor (central processing unit, CPU), a battery management unit, and a baseband processing unit. The host circuit board 80 is located between the screen 70 and the rear cover 61 , that is, the host circuit board 80 is located in the receiving space 63 .

In addition, the host circuit board 80 can be a rigid circuit board, a flexible circuit board, or a rigid-flex circuit board. In addition, the host circuit board 80 may use an FR-4 dielectric board, or a Rogers (Rogers) dielectric board, or a mixed media board of Rogers and FR-4, and so on. Here, FR-4 is a code name of a flame-resistant material grade, and Rogers dielectric board is a high-frequency board.

Please refer to FIG. 2 again, the prism motor 90 is installed in the receiving space 63 . The prism motor 90 is used to reflect ambient light into the camera module 100 .

In this embodiment, the host circuit board 80 is provided with an escape space 81 . The prism motor 90 is located in the escape space 81 . At this time, in the direction of the Z axis, the host circuit board 80 and the prism motor 90 have overlapping areas, so that the thickness of the electronic device 100 in the direction of the Z axis can be set to be relatively thin. In other embodiments, the host circuit board 80 may not be provided with the escape space 81 .

Please refer to FIG. 3 , combined with FIG. 2 , FIG. 3 is a partial cross-sectional view of the electronic device shown in FIG. 1 at line A-A. The prism motor 90 includes a prism motor housing 91 and a prism 92 . The prism 92 is located inside the prism motor housing 91 . The prism motor case 91 has a second light-transmitting portion 93 and a third light-transmitting portion 94 . The second light-transmitting portion 93 is disposed opposite to the first light-transmitting portion 64 of the rear cover 61 . The third light transmitting portion 94 is located on the peripheral side of the prism motor housing 91 . Furthermore, the prism 92 includes a reflective surface 95 . The reflective surface 95 is used to reflect ambient light into the camera module 100 . Specifically, ambient light passes through the first light-transmitting portion 64 and the second light-transmitting portion 93 in sequence, and is projected onto the reflective surface 95 of the prism 92 . At this time, the ambient light is reflected by the reflective surface 95 of the prism 92 to the third light-transmitting portion 94 , and enters into the camera module 100 through the third light-transmitting portion 94 .

In one embodiment, the prism 92 can be flexibly connected to the prism motor casing 91 . It can be understood that the movable connection includes sliding connection, rotating connection, sliding connection combined with rotating connection and the like. Specifically, the prism 92 can be slidably connected inside the prism motor housing 91 through a sliding device. In this way, when the prism 92 slides relative to the prism motor casing 91 , the distance between the reflective surface 95 of the prism 92 and the camera module 100 can change. In addition, the prism 92 can also be rotatably connected to the prism motor casing 91 through a rotating device. In this way, when the prism 92 rotates relative to the prism motor housing 91 , the incident angle between ambient light and the reflective surface 95 of the prism 92 can change. In other implementations, the prism 92 can also be fixedly connected to the prism motor casing 91 .

It can be understood that, by disposing the prism motor 90 , the optical axis of the camera module 100 is not limited to extend along the Z-axis direction. The optical axis of the camera module 100 refers to the light passing through the center of the lens in the camera module 100 . For example, the optical axis of the camera module 100 can also be parallel to the X axis or the Y axis. In this way, because the electronic device 100 has a wider space in the X-axis or Y-axis direction, the focusing range of the camera module 100 can be significantly increased, thereby achieving high-magnification focusing of the camera module 100 .

Please refer to FIG. 3 again, and in combination with FIG. 2 , the camera module 100 is fixed in the receiving space 63 . In this embodiment, the camera module 100 is located in the escape space 81 . At this time, in the Z-axis direction, the host circuit board 80 and the camera module 100 have overlapping areas, so that the thickness of the electronic device 100 in the Z-axis direction can be set to be thinner.

In addition, the camera module 100 is provided with a first light entrance hole 323 . The first light entrance hole 323 is opposite to the third light transmission portion 94 . At this time, the first light entrance hole 323 is used to allow the ambient light reflected by the prism motor 90 to enter the camera module 100 so that the camera module 100 collects the ambient light.

In addition, the number of camera modules 100 is not limited to the one shown in FIGS. 1 to 3 . The number of camera modules 100 can also be two, or more than two. When there are multiple camera modules 100, the multiple camera modules 100 are arranged arbitrarily in the X-Y plane. For example, a plurality of camera modules 100 are arranged along the X-axis direction, or arranged along the Y-axis direction. In addition, when the number of camera modules 100 is two or more, the two or more camera modules 100 can be integrated into one camera module.

In addition, the camera module 100 is electrically connected to the host circuit board 80 . At this time, the host circuit board 80 can control the camera module 100 to take images or record videos.

Specifically, camera application software may be set on the screen 70 . When the user needs to capture an image, the user touches the camera application software on the screen 70 . At this time, the screen 70 generates a touch signal and transmits the touch signal to the host circuit board 80 . The host circuit board 80 receives the touch signal, and controls the camera module 100 to photograph the subject according to the touch signal. The photographic object may be a person, an object, or the like.

As shown in FIGS. 4 and 5 , FIG. 4 is a schematic structural diagram of the camera module of the electronic device shown in FIG. 1 . FIG. 5 is a partially exploded schematic view of the camera module shown in FIG. 4 . The camera module 100 includes a second circuit board 10 , a photosensitive chip 20 , a filter 39 and a zoom lens 30 .

Wherein, the second circuit board 10 is electrically connected to the host circuit board 80 (please refer to FIG. 3 ). In this way, the signal can be transmitted to the second circuit board 10 via the host circuit board 80 . Signals can also be transmitted to the host circuit board 80 via the second circuit board 10 .

The second circuit board 10 can be a rigid circuit board, a flexible circuit board, or a rigid-flex circuit board. In addition, the second circuit board 10 may use an FR-4 dielectric board, or a Rogers (Rogers) dielectric board, or a mixed media board of Rogers and FR-4, and so on.

Please refer to FIG. 6 , combined with FIG. 5 , FIG. 6 is an enlarged schematic diagram of the electronic device shown in FIG. 3 at point B. Referring to FIG. The photosensitive chip 20 is fixed on the second circuit board 10 and electrically connected with the second circuit board 10 . In this way, when the photosensitive chip 20 receives ambient light, the signal generated by the photosensitive chip 20 can be transmitted to the host circuit board 80 through the second circuit board 10 .

In one implementation manner, the photosensitive chip 20 may be mounted on the second circuit board 10 by a chip on board (COB) technology. In other embodiments, the photosensitive chip 20 may also be packaged on the second circuit board 10 by using ball grid array (BGA) technology or land grid array (LGA) technology.

In other embodiments, electronic components or other chips (such as driver chips) are also installed on the second circuit board 10 . Electronic components or other chips are arranged around the photosensitive chip 20 . Electronic components or other chips are used to assist the photosensitive chip 20 in collecting ambient light, and the auxiliary photosensitive chip 20 performs signal processing on the collected ambient light.

In other embodiments, a reinforcing plate is provided on the surface of the second circuit board 10 facing away from the photosensitive chip 20 . In other words, the reinforcing plate and the photosensitive chip 20 are located on different sides of the second circuit board 10 . The reinforcing plate can be, but not limited to, a steel plate. The reinforcing plate can improve the strength of the second circuit board 10 .

In other implementation manners, the second circuit board 10 may also be partially provided with sinking grooves, and at this time, the photosensitive chip 20 may be installed in the sinking grooves. In this way, the photosensitive chip 20 and the second circuit board 10 have overlapping areas in the X-axis direction, and at this time, the camera module 100 can be set thinner in the X-axis direction.

Please refer to FIG. 5 and FIG. 6 again, the filter 39 is fixed on the second circuit board 10 . A ring bracket 391 is disposed on the surface of the second circuit board 10 . The filter 391 is fixed on the surface of the ring support 391 away from the second circuit board 10 . The photosensitive chip 20 can be located in the space enclosed by the ring support 391 .

In other embodiments, the surface of the second circuit board 10 is provided with stand-up blocks. The filter 39 is fixed on the surface of the stand-up block away from the second circuit board 10 .

In addition, the filter 39 is disposed opposite to the photosensitive chip 20 . The filter 39 is used to filter the stray light passing through the ambient light, and project the filtered ambient light to the photosensitive chip 20 , so as to ensure better clarity of the image captured by the electronic device 1 . The filter 39 may be, but not limited to, a blue glass filter. For example, the filter 39 can also be a reflective infrared filter, or a double-pass filter (the double-pass filter can make visible light and infrared light in the ambient light pass through simultaneously, or make visible light in the ambient light and other specific wavelengths of light (such as ultraviolet light) at the same time, or infrared light and other specific wavelengths of light (such as ultraviolet light) at the same time.).

Please refer to FIG. 5 and FIG. 6 again, the zoom lens 30 includes a substrate 31, a housing 32, a third circuit board 33, a guide rail 34, a fixed focus assembly 35, a first motor 36, a second motor 37, a lens group 38 and a self-locking assembly 40.

Wherein, the substrate 31 is fixed on the second circuit board 10 and is on the same side as the photosensitive chip 20 . The substrate 31 defines a through hole 311 . The photosensitive chip 20 is disposed opposite to the through hole 311 to collect ambient light passing through the through hole 311 . The shape of the through hole 311 is not limited to the rectangle shown in FIG. 5 .

In one embodiment, by partially extending the photosensitive chip 20 into the through hole 311, it is possible to prevent the substrate 31 from pressing the photosensitive chip 20, and to make the photosensitive chip 20 and the substrate 31 overlap in the X-axis direction. The camera module 100 can be set thinner in the X-axis direction.

In one embodiment, the optical filter 39 can be arranged on the surface of the substrate 31 facing the second circuit board 10, or on the surface of the substrate 31 facing away from the second circuit board 10, or can be arranged in the through hole 311 (for example , the side of the filter 39 is bonded to the hole wall of the through hole 311).

In other embodiments, the zoom lens 30 may not be provided with the substrate 31 .

Please refer to FIG. 5 and FIG. 6 again, the housing 32 is fixed on the side of the substrate 31 away from the second circuit board 10 . The housing 32 and the base plate 31 enclose an accommodating space 312 . The base plate 31 and the housing 32 roughly form a box. The shape enclosed by the substrate 31 and the housing 32 is not limited to the cuboid shown in FIG. 4 . In other embodiments, the housing 32 can also be directly fixed on the second circuit board 10 .

Wherein, the housing 32 includes an upper cover 321 and a frame body 322 . The upper cover 321 is mounted on the frame body 322 . The first light entrance hole 323 is disposed on the frame body 322 . The first light entrance hole 323 is used to allow the ambient light reflected by the prism motor 90 (refer to FIG. 3 ) to enter the inner side of the housing 32 , that is, the accommodating space 312 .

Please refer to FIG. 7 , combined with FIG. 5 , FIG. 7 is a schematic structural diagram of the frame body of the camera module shown in FIG. 4 . The frame body 322 includes a left plate 3221 , a rear plate 3222 , and a lower plate 3223 and an upper plate 3224 oppositely disposed. The left plate 3221 is connected between the lower plate 3223 and the upper plate 3224 . The rear panel 3222 is connected between the lower panel 3223 and the upper panel 3224 , and is connected to the left panel 3221 . The rear panel 3222 is opposite to the upper cover 321 . The left plate 3221 is opposite to the base plate 31 . In addition, the first light inlet 323 is disposed on the left plate 3221 .

It can be understood that when the rear cover 61 of the electronic device 1 faces the user, the left plate 3221 is the plate of the frame body 322 close to the left side of the user, that is, the plate facing the negative direction of the X-axis. The rear panel 3222 is a panel where the frame body 322 is away from the user, that is, a panel facing the negative direction of the Z-axis. The lower plate 3223 is a plate near the bottom of the electronic device 1 of the frame body 322 , that is, a plate facing the negative direction of the Y-axis. The upper board 3224 is a board near the top of the electronic device 1 of the frame body 322 , that is, a board facing the positive direction of the Y-axis.

Please refer to FIG. 6 again, the third circuit board 33 is fixed on the rear panel 3222 . The third circuit board 33 is partly located inside the housing 32 , and partly protrudes from the inside of the housing 32 , that is, partly located outside the housing 32 . The third circuit board 33 is not limited to the "convex" shape illustrated in FIG. 5 .

Wherein, the third circuit board 33 is electrically connected to the second circuit board 10 . Specifically, it is electrically connected to the second circuit board 10 through the third circuit board 33 extending out of the housing 32 . At this time, because the second circuit board 10 is electrically connected to the host circuit board 80 , the signal sent by the host circuit board 80 can be transmitted to the third circuit board 33 through the second circuit board 10 .

It can be understood that the third circuit board 33 can be a rigid circuit board, a flexible circuit board, or a rigid-flex circuit board. In addition, the third circuit board 33 may be an FR-4 dielectric board, a Rogers (Rogers) dielectric board, or a mixed media board of Rogers and FR-4, and so on.

Please refer to FIG. 8 and FIG. 9 . FIG. 8 is a partially exploded view of the camera module shown in FIG. 4 . FIG. 9 is a partially exploded schematic view of the camera module shown in FIG. 4 . The fixed focus assembly 35 is fixed on the left plate 3221 . The fixed focus assembly 35 defines a first installation hole 351 . The first installation hole 351 is opposite to the first light inlet hole 323 (refer to FIG. 7 ) on the left plate 3221 . Lens set 38 includes a second lens 382 . The second lens 382 is installed in the first installation hole 351 . In this embodiment, a second lens 382 is installed in the first installation hole 351 . At this moment, ambient light can be transmitted to the lens 38 in the first installation hole 351 through the first light entrance hole 323 .

In addition, one end of the guide rail 34 is fixed to the base plate 31 , and the other end is fixed to the fixed focus assembly 35 . In addition, the number of guide rails 34 is not limited to four as shown in FIGS. 8 and 9 . In other embodiments, one end of the guide rail 34 can also be fixed to the second circuit board 10 . The other end of the guide rail 34 can also be fixed to the left plate 3221 .

Please refer to FIG. 8 and FIG. 9 again, the first motor 36 includes a first moving frame 361 , a first magnet 362 , and a first coil 363 . The first moving bracket 361 is movably connected to the guide rail 34 . The first moving bracket 361 has a first sliding hole 364 . The guide rail 34 passes through the first sliding hole 364 . In this way, the first moving bracket 361 can slide relative to the guide rail 34 through the first sliding hole 364 . It can be understood that the number of the first sliding holes 364 in this embodiment is not limited to four as shown in FIG. 9 .

In addition, the first moving bracket 361 includes a first portion 365 and a second portion 366 connected to the first portion 365 . The first part 365 is provided with a second mounting hole 367 . The second installation hole 367 is opposite to the first installation hole 351 . The lens set 38 includes a first lens 381 . At least one first lens 381 is installed in the second installation hole 367 . In this embodiment, two first lenses 381 are installed in the second mounting hole 367 . At this time, the ambient light is transmitted to the first lens 381 on the first motor 36 through the second lens 382 on the fixed focus assembly 35 . In addition, the second portion 366 defines a first installation groove 368 . The first installation groove 368 is installed with the first magnet 362 .

In this embodiment, the second portion 366 is connected to the first portion 365 by bending. The first motor 36 is roughly "" type.

In other embodiments, the second part 366 and the first part 365 may also be connected in a straight line, that is, the first motor 36 is roughly in the shape of "one".

In addition, the first coil 363 is fixed on the surface of the lower plate 3223 facing the second portion 366 . The first coil 363 is opposite to the first magnet 362 . The first coil 363 is electrically connected to the third circuit board 33 (please refer to FIG. 6 ). In this embodiment, when the third circuit board 33 transmits a current signal to the first coil 363 , the first coil 363 is energized, and the first magnet 362 can generate an ampere force along the negative direction of the X axis or the positive direction of the X axis. At this time, the first magnet 362 pushes the first moving bracket 361 to move along the negative direction of the X axis or the positive direction of the X axis under the ampere force.

In other embodiments, by changing the direction of the current signal on the first coil 363, or setting the position of the S pole or the N pole of the first magnet 362, when the first coil 363 is energized, the first magnet 362 can generate an X The ampere force in the negative direction of the axis or the positive direction of the X axis. At this time, the first magnet 362 can push the first moving bracket 361 to move along the negative direction of the X axis or the positive direction of the X axis under the ampere force.

Please refer to FIG. 8 and FIG. 9 again, the second motor 37 includes a second moving frame 371 , a second magnet 372 , and a second coil 373 . The second moving bracket 371 is movably connected to the guide rail 34 . The second moving bracket 371 is provided with a second sliding hole 374 . The guide rail 34 passes through the second sliding hole 374 . In this way, the second moving bracket 371 can slide relative to the guide rail 34 through the second sliding hole 374 . It can be understood that the number of the second sliding holes 374 in this embodiment is not limited to four as shown in FIG. 9 .

In addition, the second moving bracket 371 includes a third portion 375 and a fourth portion 376 connected to the third portion 375 . The third part 375 is provided with a third mounting hole 377 . The third installation hole 377 is opposite to the second installation hole 367 . At least one first lens 381 is installed in the third installation hole 377 . In this embodiment, two first lenses 381 are installed in the third mounting hole 377 . At this time, the ambient light is transmitted to the first lens 381 on the second motor 37 through the second lens 382 on the fixed focus assembly 35 and the first lens 381 on the first motor 36 . In addition, the fourth portion 376 defines a second installation slot 378 . The second installation slot 378 is installed with the second magnet 372 .

In this embodiment, the fourth portion 376 is connected to the third portion 375 by bending. The second motor 37 is roughly in the shape of a ““”.

In other embodiments, the fourth part 376 and the third part 375 may also be connected in a straight line, that is, the second motor 37 is roughly in the shape of "one".

In addition, the second coil 373 is fixed on the surface of the upper plate 3224 facing the fourth portion 376 . The second coil 373 is opposite to the second magnet 372 . The second coil 373 is electrically connected to the third circuit board 33 . In this embodiment, when the third circuit board 33 transmits a current signal to the second coil 373, the second coil 373 is energized, and the second magnet 372 can generate an ampere force along the positive direction of the X axis or the negative direction of the X axis. At this time, the second magnet 372 pushes the second moving bracket 371 to move along the positive direction of the X axis or the negative direction of the X axis under the ampere force.

In other embodiments, by changing the direction of the current signal on the second coil 373, or setting the position of the S pole or the N pole of the second magnet 372, when the second coil 373 is energized, the second magnet 372 can generate an X pole. The ampere force in the positive direction of the axis or the negative direction of the X axis. At this time, the second magnet 372 can push the second moving bracket 371 to move along the positive direction of the X axis or the negative direction of the X axis under the ampere force.

It can be understood that when the user needs to adjust the focus of the camera module 100 , the current signal is transmitted to the first coil 363 and the second coil 373 . At this time, the first magnet 362 pushes the first moving bracket 361 to move along the positive direction of the X axis or the negative direction of the X axis under the ampere force, so that the lens 38 installed on the first moving bracket 361 also moves along the positive direction of the X axis or the negative direction of the X axis. Move in negative direction. In addition, the second magnet 372 can push the second moving bracket 371 to move along the positive direction of the X axis or the negative direction of the X axis under the ampere force, so that the lens 38 installed on the second moving bracket 371 can also move along the positive direction of the X axis or the negative direction of the X axis. Move in negative direction.

In other embodiments, the first moving bracket 361 can also move independently along the positive direction of the X-axis or the negative direction of the X-axis. The second moving bracket 371 can also move independently along the positive direction of the X axis or along the negative direction of the X axis. Specifically, it can be set according to the user's focusing requirements.

Please refer to FIG. 10 . FIG. 10 is a partially exploded schematic diagram of another embodiment of the camera module shown in FIG. 4 . The zoom lens 30 may further include a Hall sensor 51 and a detection magnet 52 .

Wherein, the detection magnet 52 is fixed on a side of the first moving bracket 361 facing the third circuit board 33 . Specifically, the detection magnet 52 can be fixed to the first part 365 of the first moving bracket 361 , or can be fixed to the second part 366 .

In one embodiment, the first mobile bracket 361 is provided with a sunken groove. The opening of the sinker faces the third circuit board 33 . The detection magnet 52 is arranged in the sinker. In this way, the detection magnet 52 will not increase the thickness of the camera module 100 in the direction of the Z axis.

Wherein, the Hall sensor 51 is located in the accommodation space 312 . Specifically, the Hall sensor 51 is fixed on the third circuit board 33 and electrically connected to the third circuit board 33 . The Hall sensor 51 is used to detect the magnetic field strength of the detection magnet 52 .

It can be understood that, when the user needs to adjust the camera module 100 (for example, to adjust the focus by 10 times), the third circuit board 33 transmits a current signal to the first coil 363 . The first magnet 362 pushes the first moving bracket 361 to move along the positive direction of the X axis or the negative direction of the X axis under the ampere force. At this time, the first mobile support 361 is prone to fail to move to the target position. In this embodiment, the hall sensor 51 is used to detect the magnetic field strength of the detecting magnet 52, and the magnitude of the magnetic field strength and the preset magnetic field strength at the 10 times focus point is judged. When the magnetic field strength is not equal to the preset magnetic field strength at the 10x focus point, the Hall sensor 51 feeds back to the host circuit board 80 through the third circuit board 33 . At this time, the host circuit board 80 can provide a compensating current signal to the first coil 363 , so that the first moving bracket 361 moves to the target position, that is, the 10-fold focusing position. In this way, the focus accuracy of the camera module 100 can be improved through the Hall sensor 51 and the detection magnet 52 , so that the effect of the image captured by the camera module 100 is better.

In other embodiments, the detection magnet 52 may also be fixed on the side of the second moving bracket 371 facing the third circuit board 33 . The detection magnet 52 can be fixed on the third part 375 or the fourth part 376 of the second moving bracket 371 . In this way, the Hall sensor 51 is used to detect the magnetic field strength of the detection magnet 52 fixed on the second mobile bracket 371, thereby further improving the accuracy of focusing of the camera module 100, and then making the image captured by the camera module 100 The effect is better.

In other embodiments, the number of Hall sensors 51 is not limited to two as shown in FIG. 10 . The number of detection magnets 52 is not limited to two as illustrated in FIG. 10 .

Please refer to FIG. 11 , combined with FIG. 5 , FIG. 11 is a partially exploded view of the camera module 100 shown in FIG. 4 . The self-locking assembly 40 is used for locking the first motor 36 and/or the second motor 37 when the first motor 36 and/or the second motor 37 move to a target position. It can be understood that when the first motor 36 is provided with the self-locking assembly 40 , the self-locking assembly 40 is used to lock the first motor 36 when the first motor 36 moves to the target position. When the second motor 37 is provided with a self-locking assembly 40, the self-locking assembly 40 is used to lock the second motor 37 when the second motor 37 moves to the target position. When the first motor 36 and the second motor 37 are both provided with a self-locking assembly 40, the self-locking assembly 40 is used to lock the first motor 36 and the second motor 37 when the first motor 36 and the second motor 37 move to the target position. 37 is locked. This embodiment is described by taking the first motor 36 provided with the self-locking assembly 40 as an example.

In this embodiment, by setting the self-locking assembly 40, when the first motor 36 and/or the second motor 37 move to the target position, the self-locking assembly 40 can move the first motor 36 and/or the second motor 37 lock tight. In this way, the stability of the first mirror 381 on the first motor 36 and/or the first mirror 381 on the second motor 37 is better, that is, the first mirror 381 on the first motor 36 and/or the first mirror 381 on the second motor 37 The first lens 381 is not easy to move due to external shaking or vibration, so when the user is taking a picture, the captured image is not easy to be deformed or blurred. Especially, when the user is taking pictures during exercise, the effect of the images captured by the camera module 100 is also better.

In addition, when the first motor 36 and/or the second motor 37 move to the target position, because the first motor 36 and/or the second motor 37 can be locked by the self-locking assembly 40, the camera module 100 does not need to pass to the target position. The first coil 363 and the second coil 373 transmit current signals to lock the first moving frame 361 and the second moving frame 371 . In this way, when the first motor 36 and/or the second motor 37 in this embodiment are locked by the self-locking assembly 40 , the transmission of the current signal to the first motor 36 and/or the second motor 37 can be stopped. In this way, the camera module 100 can greatly reduce energy consumption and heat generation during use.

In addition, when the first motor 36 and/or the second motor 37 move to the target position, the first motor 36 and/or the second motor 37 are locked to ensure that the first motor 36 and/or the second motor 37 It is not easy to collide with other components in the camera module 100 , that is, the risk of collision of the first motor 36 and/or the second motor 37 is reduced.

In addition, when the first motor 36 and/or the second motor 37 moves to the target position, the first motor 36 and/or the second motor 37 are locked, so that the first motor 36 and/or the second motor 37 Relatively stable, that is, the first motor 36 and/or the second motor 37 are not prone to forced vibration. It can be understood that the forced vibration refers to the vibration that occurs under the action of a periodic external force.

In this embodiment, the self-locking assembly 40 has multiple configurations. Several configurations of the self-locking assembly 40 will be described in detail below in conjunction with related drawings.

First embodiment: please refer to FIG. 11 again, the self-locking assembly 40 includes a limiting member 41 , a force applying member 42 , a connecting member 44 and a first circuit board 43 .

Wherein, one end of the connecting member 44 is fixed to the middle of the limiting member 41 , and the other end is fixed to the upper cover 321 . In this embodiment, the connecting piece 44 is a rigid piece. The connecting piece 44 and the upper cover 321 are integrally formed. In other words, the connecting member 44 is made of the same material as the upper cover 321 . In other embodiments, the connecting member 44 may also be connected to the upper cover 321 by welding or bonding. In other embodiments, the connecting member 44 may also be an elastic member. Such as shrapnel or springs. At this time, the connecting piece 44 is squeezed between the limiting piece 41 and the upper cover. In other words, the connector 44 is in compression.

Please refer to FIG. 12 , combined with FIG. 11 , FIG. 12 is a structural diagram of an implementation manner of the self-locking assembly of the camera module shown in FIG. 11 at an angle. The limiting member 41 includes a first conductive segment 411 , a first insulating segment 412 and a second conductive segment 413 connected in sequence. In other words, the first insulating segment 412 is connected between the first conductive segment 411 and the second conductive segment 413 . The material of the first conductive segment 411 and the second conductive segment 413 can be copper, aluminum, silver, gold or aluminum alloy. The first conductive segment 411 , the first insulating segment 412 and the second conductive segment 413 can be bent.

In addition, the material of the first insulating segment 412 may be a polymer material. For example, thermoplastic polyurethane elastomer rubber (thermoplastic polyurethanes, TPU), thermoplastic elastomer (thermoplastic elastomer, TPE), thermoplastic rubber material (thermoplastic rubber material, TPR).

In addition, the limiting member 41 further includes a limiting block 414 . The number of limiting blocks 414 is not limited to two as shown in Fig. 11 and Fig. 12 . For example, there may be one, three or more than three limiting blocks 414 . In this embodiment, the first limiting block 414 is fixedly connected to the surface of the first conductive segment 411 facing the first motor 36 . The second limiting block 414 is fixedly connected to the surface of the second conductive segment 413 facing the first motor 36 .

In addition, the material of the limiting block 414 can be polymer material. Such as TPU, TPE or TPR, etc. In other embodiments, the material of the limiting block 414 may also be the same as that of the first conductive segment 411 . The limiting block 414 is integrally formed with the first conductive segment 411 or the second conductive segment 413 .

Please refer to FIG. 12 again, and as shown in FIG. 11 , the force application member 42 is a shape memory alloy (shape memory alloy, SMA). One end of the force applying member 42 is connected to the first conductive segment 411 , and the other end is connected to the second conductive segment 413 . In one embodiment, both ends of the force application member 42 can be fixedly connected to the first conductive segment 411 and the second conductive segment 413 by welding.

In addition, the first circuit board 43 includes a first segment 431 and a second segment 432 connected to the first segment 431 . The first section 431 is fixedly connected to the protrusion 324 . The second section 432 is fixedly connected to the upper cover 321 , and partly extends to the outside of the casing 32 through the base plate 31 . The second segment 432 can be electrically connected to the second circuit board 10 and electrically connected to the host circuit board 80 through the second circuit board 10 . In other embodiments, the second segment 432 may also be electrically connected to the host circuit board 80 through wires.

Please refer to FIG. 13 , combined with FIG. 11 , FIG. 13 is a structural schematic view of the self-locking assembly shown in FIG. 12 at another angle. The first segment 431 has a first pin 4311 and a second pin 4312 . The first pin 4311 is electrically connected to the first conductive segment 411 . The second pin 4312 is electrically connected to the second conductive segment 413 . In this way, the first circuit board 43 , the first conductive segment 411 , the force applying member 42 and the second conductive segment 413 form a current path. It can be understood that the current path refers to a loop through which current can be transmitted among the first circuit board 43 , the first conductive segment 411 , the force applying member 42 and the second conductive segment 413 .

In addition, the second segment 432 can be used to electrically connect the second circuit board 10 . Specifically, the second segment 432 includes a third pin 4321 and a fourth pin 4322 . The third pin 4321 and the fourth pin 4322 are electrically connected to the second circuit board 10 . In this way, when the second circuit board 10 transmits a current signal to the first circuit board 43, at this moment, the first circuit board 43 can transmit the current signal to the first conductive section 411 and the second conductive section 411 through the second pin 4312 and the first pin 4311. Section 413 transmits the current signal. The current signal acts on the force applying member 42 through the first conductive segment 411 and the second conductive segment 413 . At this time, the force application member 42 receives the current signal, and the two ends of the force application member 42 shrink toward the middle, that is, the force application member 42 generates a contraction force. In this way, the force applying member 42 in the contracted state can exert a pulling force on the limiting member 41 through the contraction force, thereby driving the first conductive segment 411 and the second conductive segment 413 to bend.

In other embodiments, the first circuit board 43 may not include the first segment 431 . At this time, the first conductive segment 411 may be electrically connected to the first circuit board 43 through wires, and the second conductive segment 413 may be electrically connected to the first circuit board 43 through wires.

In other embodiments, the self-locking assembly 40 may not include the first circuit board 43 . At this time, the first conductive segment 411 may be electrically connected to the second circuit board 10 or the host circuit board 80 through wires. The second conductive segment 413 can be electrically connected to the second circuit board 10 or the host circuit board 80 through wires.

In other embodiments, the forcing member 42 can also be a coil and a magnet. The coil is fixed on the first conductive segment 411 . The magnet is fixed on the second conductive section 413 . The coil is arranged opposite to the magnet. At this time, by energizing the coil, a magnetic attraction force is generated between the coil and the magnet, thereby using the magnetic attraction force between the coil and the magnet to drive the first conductive segment 411 and the second conductive segment 413 close to each other, that is, the stopper 41 generates deformation.

In this embodiment, the self-locking component 40 has two states. One is the locked state. One is the unlocked state. These two states will be described in detail below in conjunction with related drawings.

Locked state: Please refer to FIG. 14a, which is a schematic diagram of an implementation manner of a partial structure of the camera module shown in FIG. 4 in a state. When the first circuit board 43 does not transmit a current signal to the force applying member 42, that is, when the force applying member 42 does not receive a current signal, the force applying member 42 does not shrink, and the force applying member 42 does not act on the limiting member 41 At this time, the force applying member 42 does not drive the deformation of the first conductive segment 411 and the second conductive segment 413 . At this time, the two limiting blocks 414 contact the first motor 36 under the pressure of the connecting member 44 , and generate static friction force with the first motor 36 , so as to lock the first motor 36 by using the static friction force. In this way, the first motor 36 is not easy to slide along the X-axis direction under the action of the limiting block 414 .

Unlocked state: Please refer to FIG. 14b, which is a schematic diagram of a partial structure of the camera module shown in FIG. 14a in another state. Unlocked state: when the first circuit board 43 transmits current signals to the first conductive segment 411 and the second conductive segment 413 . The current signal is transmitted to the force applying member 42 through the first conductive segment 411 and the second conductive segment 413 . At this time, the force application member 42 receives the current signal, and the two ends of the force application member 42 shrink toward the middle, that is, the force application member 42 generates a contraction force. In this way, the force applying member 42 in the contracted state exerts a pulling force on the limiting member 41 through the contraction force, thereby driving the first conductive segment 411 and the second conductive segment 413 to approach each other, that is, the limiting member 41 is deformed. At this time, the two limit blocks 414 are separated from the first motor 36 .

In one embodiment, when the user needs to adjust the focus of the camera module 100, the host circuit board 80 receives a focus signal. The host circuit board 80 transmits control signals to the first circuit board 43 through the second circuit board 10 . The control signal can be a current signal or a voltage signal.

In this embodiment, by setting the zoom lens 30 with a self-locking component 40, when the force applying member 42 does not apply force to the limiting member 41, the self-locking component 40 will The limiting member 41 can contact the first motor 36 under the pressure of the connecting member 44 and form a static friction force with the first motor 36 . At this time, the first motor 36 is locked by the self-locking assembly 40 . In this way, the stability of the first lens 381 on the first motor 36 is better. In other words, the first lens 381 on the first motor 36 is not easy to move due to external shaking or vibration. When a user is taking a photo, the captured image is less likely to be distorted or blurred. Especially, when the user is taking pictures during exercise, the effect of the images captured by the camera module 100 is also better.

In addition, compared with the solution of locking the first motor 36 by providing a current signal to the first motor 36, in this embodiment, when the force applying member 42 responds to the control signal, the self-locking assembly 40 can lock the first motor 36 . At this time, the zoom lens 30 may disconnect the current signal transmitted to the first motor 36 . In this way, the zoom lens 30 can greatly reduce energy consumption and heat generation during use.

In the second embodiment, the same technical content as the first embodiment will not be repeated: please refer to FIG. 15 , which is a structural schematic diagram of another embodiment of the partial structure of the camera module shown in FIG. 4 . The limiting member 41 includes a first conductive segment 411 and a second conductive segment 413 . The first conductive segment 411 and the second conductive segment 413 extend along the X-axis direction and are arranged at intervals. The first conductive segment 411 and the second conductive segment 413 can be bent.

In addition, the end of the first conductive section 411 close to the second conductive section 413 is connected to the upper cover 321 through the connecting piece 44 . An end of the second conductive section 413 close to the first conductive section 411 is connected to the upper cover 321 through the connecting piece 44 . The locking principle of the self-locking assembly 40 in this embodiment is the same as that of the self-locking assembly 40 in the first embodiment. I won't go into details here.

In the third embodiment, the same technical content as the first embodiment will not be repeated: please refer to Figure 16a and Figure 16b, Figure 16a is another embodiment of the self-locking component of the camera module shown in Figure 11 Schematic diagram of the structure. Fig. 16b is a schematic diagram of another embodiment of the partial structure of the camera module shown in Fig. 4 in one state. The self-locking assembly 40 includes a limiting member 41 , a first force applying member 421 , a second force applying member 422 , a connecting member 44 and a first circuit board 43 . In this embodiment, there are two force applying members. Both the first force applying member 421 and the second force applying member 422 are shape memory alloys.

Wherein, the limiting member 41 includes a deformation piece 411 and a limiting block 414 .

Wherein, the material of the deformation piece 411 is a conductive material, such as copper, aluminum, silver, gold or aluminum alloy. The deformation piece 411 can be bent. In addition, the middle part of the deformation piece 411 is fixedly connected to the upper cover 321 through the connecting piece 44 . For the arrangement of the connecting member 44, refer to the arrangement of the connecting member 44 in the first embodiment, which will not be repeated here.

In addition, the deformation piece 411 includes a first end portion 412 and a second end portion 413 disposed away from the first end portion 412 .

In addition, the setting manner of the limiting block 414 may refer to the setting manner of the limiting block 414 in the first embodiment. I won't go into details here.

In addition, the first circuit board 43 of this embodiment no longer includes the first section 431 of the first embodiment. For the arrangement of the first circuit board 43 in this embodiment, refer to the arrangement of the second section 432 in the first embodiment. I won't go into details here.

Please refer to FIG. 16 a , one end of the first force applying member 421 is connected to the first end portion 412 , and the other end is connected to the first circuit board 43 . One end of the second force applying member 422 is connected to the second end portion 413 , and the other end is connected to the first circuit board 43 . In this way, the first circuit board 43 , the first force applying member 421 , the second force applying member 422 and the deformation sheet 411 form a current path. When the first circuit board 43 transmits a current signal to the first force application member 421 and the second force application member 422, the first force application member 421 and the second force application member 422 generate heat, and shrink toward their respective middle parts respectively, and also That is, both the first force application member 421 and the second force application member 422 generate contraction force. In this way, the first force application member 421 and the second force application member 422 in the contracted state utilize their respective contraction forces to drive the deformation sheet 411 to deform. At this time, the first end portion 412 and the second end portion 413 of the deformation piece 411 are close to each other.

In other embodiments, the self-locking assembly 40 may not include the first circuit board 43 . At this time, one end of the first force application member 421 is connected to the first end portion 412 , and the other end is connected to the upper cover 321 . At this time, the first forcing member 421 is electrically connected to the second circuit board 10 through wires. In addition, the second force applying member 422 can also be fixed on the upper cover 321 and electrically connected to the second circuit board 10 through wires.

The self-locking assembly 40 of this embodiment also has two states: a locked state and an unlocked state.

Locking state: please refer to FIG. 16b. Locking state: when the first circuit board 43 does not transmit current signals to the first force applying member 421 and the second force applying member 422, that is, the first force applying member 421 and the second force applying member 421 When the force member 422 does not receive the current signal, the first force applying member 421 and the second force applying member 422 do not generate contraction force. At this time, the first force application member 421 and the second force application member 422 do not apply force to the force application member 41 . The two limiting blocks 414 are in contact with the first motor 36 under the pressure of the connecting piece 44 , and generate static friction force with the first motor 36 , so as to lock the first motor 36 by using the static friction force. In this way, the first motor 36 is not easy to slide along the X-axis direction under the action of the limiting block 414 .

Unlocked state: Please refer to FIG. 16c, which is a schematic diagram of another state of the partial structure of the camera module shown in FIG. 16b. When the first circuit board 43 transmits a current signal to the first force application member 421 and the second force application member 422, at this moment, the first force application member 421 and the second force application member 422 respond to the current signal, and respectively send The middle shrinks. In this way, the first force-applying member 421 and the second force-applying member 422 in the contracted state apply a pulling force to the limiting member 41 through the contraction force, thereby driving the first conductive segment 411 and the second conductive segment 413 to approach each other, that is, the limiting member 41 is deformed. At this time, the two limiting blocks 414 are close to each other and separated from the first motor 36 .

In the fourth embodiment, the same technical content as the first embodiment will not be repeated: please refer to Figure 17a, Figure 17a is another implementation of the partial structure of the camera module shown in Figure 4 in a state schematic diagram of the way. The self-locking assembly 40 includes a limiting member 41 , a first force applying member 421 , a second force applying member 422 , a connecting member 44 and a first circuit board 43 .

Wherein, the limiting member 41 includes a rigid piece 411 and a limiting block 414 . The rigid sheet 411 is made of conductive material. Such as copper, aluminum, silver, gold or aluminum alloy, etc. In addition, the rigid piece 411 includes a first end portion 412 and a second end portion 413 disposed away from the first end portion 412 .

In addition, for the arrangement of the first force applying member 421 and the second force applying member 422 , please refer to the arrangement of the first force applying member 421 and the second force applying member 422 in the third embodiment. I won't go into details here. For the setting method of the limiting block 414, please refer to the setting method of the limiting block 414 in the third embodiment. For the arrangement of the first circuit board 43 , please refer to the arrangement of the first circuit board 43 in the third embodiment. I won't go into details here.

In addition, the connecting member 44 is an elastic member. Such as springs or shrapnel. One end of the connecting member 44 is connected between the first end portion 412 and the second end portion 413 , and the other end is connected to the upper cover 321 . In other embodiments, the other end of the connecting member 44 can also be connected to the first circuit board 43 .

The self-locking assembly 40 of this embodiment also has two states: a locked state and an unlocked state.

Locking state: please refer to FIG. 17a, when the first circuit board 43 does not transmit current signals to the first force applying member 421 and the second force applying member 422, that is, the first force applying member 421 and the second force applying member 422 are not When receiving the current signal, the first force application member 421 and the second force application member 422 do not generate contraction force. At this time, the first force applying member 421 and the second force applying member 422 do not exert force on the limiting member 41 . In this way, the two limiting blocks 414 are in contact with the first motor 36 under the pressure of the connecting piece 44 , and generate static friction force with the first motor 36 , thereby using the static friction force to lock the first motor 36 . Under the action of the limiting block 414 , the first motor 36 is not easy to slide along the X-axis direction.

Unlocked state: Please refer to FIG. 17b, which is a schematic diagram of a partial structure of the camera module shown in FIG. 17a in another state. When the first circuit board 43 transmits a current signal to the first force applying member 421 and the second force applying member 422, at this moment, the first force applying member 421 and the second force applying member 422 generate heat, and heat is transmitted to the respective middle parts respectively. shrink. In this way, the first force applying member 421 and the second force applying member 422 in the contracted state apply a pulling force to the limiting member 41 through the contraction force, thereby driving the rigid member 411 to press the connecting member 44 , and the connecting member 44 is compressed and deformed. In this way, the rigid piece 411 can drive the two limiting blocks 414 to move away from the first motor 36 , that is, the two limiting blocks 414 are separated from the first motor 36 .

In the fifth embodiment, the same technical content as the first embodiment will not be repeated: please refer to Figure 18a, Figure 18a is another implementation of the partial structure of the camera module shown in Figure 4 in a state schematic diagram of the way. The self-locking assembly 40 includes a limiting member 41 , a third magnet 421 , a fourth magnet 422 , a third coil 423 , a fourth coil 424 , a connecting member 44 and a first circuit board 43 . In this embodiment, the third magnet 421 and the third coil 423 form a force applying member. The fourth magnet 422 and the fourth coil 424 form a force applying member.

Wherein, for the arrangement of the limiting member 41 and the connecting member 44 , please refer to the arrangement of the limiting member 41 and the connecting member 44 in the first embodiment. In addition, for the limiting member 41, reference may also be made to the arrangement manner of the limiting member 41 in the second embodiment, or to the setting manner of the limiting member 41 in the third embodiment. In this embodiment, the setting manner of the limiting member 41 is taken as an example of the setting manner of the limiting member 41 in the third embodiment. In addition, the arrangement manner of the first circuit board 43 is exemplified by the arrangement manner of the first circuit board 43 in the third embodiment.

The third magnet 421 is fixedly connected to the first end 412 of the deformation piece 411 and faces away from the first motor 36 . The fourth magnet 422 is fixedly connected to the second end 413 of the deformation piece 411 and faces away from the first motor 36 . In one embodiment, the third magnet 421 can be fixedly connected to the first end 412 of the limiting member 41 by glue. The fourth magnet 422 can be fixedly connected to the second end 413 of the limiting member 41 by glue.

In this embodiment, both the third coil 423 and the fourth coil 424 are fixedly connected to the first circuit board 43 and electrically connected to the first circuit board 43 . In addition, the third coil 423 is disposed opposite to the third magnet 421 . The fourth coil 424 is opposite to the fourth magnet 422 . In other implementations, the third coil 423 and the fourth coil 424 may also be fixedly connected to the upper cover 321 directly.

The self-locking assembly 40 of this embodiment also has two states: a locked state and an unlocked state.

Locking state: Please refer to FIG. 18a again, when the first circuit board 43 does not transmit current signals to the third coil 423 and the fourth coil 424, that is, when the third coil 423 and the fourth coil 424 do not receive current signals, the third The coil 423 does not generate a magnetic attraction force to the third magnet 421 , and the fourth coil 424 does not generate a magnetic attraction force to the fourth magnet 422 . In this way, the third magnet 421 and the fourth magnet 422 do not exert force on the force applying member 41 , and the third magnet 421 and the fourth magnet 422 do not drive the deformation sheet 411 to bend. At this time, the two limiting blocks 414 are in contact with the first motor 36 under the pressure of the connecting piece 44 , and generate static friction force with the first motor 36 , so as to lock the first motor 36 by using the static friction force. In this way, the first motor 36 is not easy to slide along the X-axis direction under the action of the limiting block 414 .

Unlocked state: Please refer to FIG. 18b, which is a schematic diagram of a partial structure of the camera module shown in FIG. 18a in another state. When the first circuit board 43 transmits a current signal to the third coil 423 and the fourth coil 424, that is, when the third coil 423 and the fourth coil 424 respond to the current signal, the third coil 423 generates a magnetic attraction force on the third magnet 421, The fourth coil 424 generates magnetic attraction to the fourth magnet 422 . In this way, the third magnet 421 and the fourth magnet 422 exert a pulling force on the deformation piece 411 through the magnetic attraction force, thereby driving the first end portion 412 and the second end portion 413 of the deformation piece 411 to approach each other. At this time, the two limit blocks 414 are separated from the first motor 36 .

In the sixth embodiment, the same technical content as the fourth embodiment will not be repeated: please refer to Figure 19a, Figure 19a is another implementation of the partial structure of the camera module shown in Figure 4 in a state schematic diagram of the way. The self-locking assembly 40 includes a limiting member 41 , a third magnet 421 , a fourth magnet 422 , a third coil 423 , a fourth coil 424 , a connecting member 44 and a first circuit board 43 . In this embodiment, the third magnet 421 and the third coil 423 form a force applying member. The fourth magnet 422 and the fourth coil 424 form a force applying member.

Wherein, the setting manner of the limiting member 41 may refer to the setting manner of the limiting member 41 in the fourth embodiment. In addition, the arrangement manner of the first circuit board 43 may refer to the arrangement manner of the first circuit board 43 in the fourth embodiment. I won't go into details here.

In addition, for the setting manner of the connecting piece 44 , please refer to the setting way of the connecting piece 44 in the fourth embodiment. I won't go into details here.

In addition, the third magnet 421 is fixedly connected to the first end portion 412 of the rigid piece 411 and faces away from the first motor 36 . The fourth magnet 422 is fixedly connected to the second end 413 of the rigid piece 411 and faces away from the first motor 36 . In one embodiment, the third magnet 421 can be fixedly connected to the first end 412 of the limiting member 41 by glue. The fourth magnet 422 can be fixedly connected to the second end 413 of the limiting member 41 by glue.

Both the third coil 423 and the fourth coil 424 are fixedly connected to the first circuit board 43 and electrically connected to the first circuit board 43 . In addition, the third coil 423 is disposed opposite to the third magnet 421 . The fourth coil 424 is opposite to the fourth magnet 422 . In other implementations, the third coil 423 and the fourth coil 424 may also be fixedly connected to the upper cover 321 directly.

The self-locking assembly 40 of this embodiment also has two states: a locked state and an unlocked state.

Locking state: Please refer to FIG. 19a again, when the first circuit board 43 does not transmit current signals to the third coil 423 and the fourth coil 424, that is, when the third coil 423 and the fourth coil 424 do not receive current signals, the third The coil 423 does not generate a magnetic attraction force to the third magnet 421 , and the fourth coil 424 does not generate a magnetic attraction force to the fourth magnet 422 . In this way, the third magnet 421 and the fourth magnet 422 do not apply force to the force applying member 41 . At this time, the two limiting blocks 414 are in contact with the first motor 36 under the action of the connecting member 44 , and generate static friction force with the first motor 36 , so that the first motor 36 is locked by using the static friction force. In this way, the first motor 36 is not easy to slide along the X-axis direction under the action of the limiting block 414 .

Unlocked state: Please refer to FIG. 19b, which is a schematic diagram of another state of the partial structure of the camera module shown in FIG. 19a. When the first circuit board 43 transmits a current signal to the third coil 423 and the fourth coil 424, that is, when the third coil 423 and the fourth coil 424 respond to the current signal, the third coil 423 generates a magnetic attraction force on the third magnet 421, and the third coil 423 generates a magnetic attraction force on the third magnet 421. The four coils 424 generate magnetic attraction to the fourth magnet 422 . In this way, the third magnet 421 and the fourth magnet 422 apply a pulling force to the rigid piece 411 through the magnetic attraction force, so that the rigid piece 411 presses the connecting piece 44, and the connecting piece 44 is compressed to be deformed. At this time, the two limit blocks 414 are separated from the first motor 36 .

In this embodiment, this embodiment provides a focusing method for the electronic device 1 . The structure of the electronic device 1 is the electronic device 1 introduced in the first embodiment above. The details will not be repeated here.

Please refer to FIG. 20 . FIG. 20 is a schematic flowchart of the focusing method of the electronic device shown in FIG. 1 . The focusing method of the electronic device 1 includes;

S100 receives the focusing signal, sends a control signal to the force applying member 42 , the force applying member 42 responds to the control signal, and applies force to the limiting member 41 , and the limiting member 41 is separated from the first motor 36 . It can be understood that the control signal may be a current signal or a voltage signal.

In one embodiment, when the force applying member 42 applies a force to the limiting member 41 in response to a control signal, the limiting member 41 or the connecting member 44 is deformed so that the limiting member 41 The member 41 is separated from the first motor 36 .

It can be understood that, compared with the solution of separating the limiting member from the first motor by additionally setting a driving device in the zoom lens, this embodiment uses the limiting member of the self-locking assembly 40 The positioning member 41 or the connecting member 44 is deformed so that the limiting member 41 is separated from the first motor 36 , which has a simple structure and does not increase the complexity of the structure of the zoom lens 30 .

In one embodiment, when the structure of the self-locking component 40 is the structure of the self-locking component 40 of the above-mentioned first embodiment, by transmitting the current signal to the first conductive segment 411 and the second conductive segment 413, the current signal passes through the first conductive segment 411 and the second conductive segment 413. A conductive segment 411 and a second conductive segment 413 are transmitted to the force applying member 42 . At this time, the force applying member 42 responds to the current signal, and both ends of the force applying member 42 shrink toward the middle, that is, the force applying member 42 generates a contraction force. In this way, the force-applying member 42 in the contracted state exerts a pulling force on the limiting member 41 through the contraction force, thereby driving the first conductive segment 411 and the second conductive segment 413 to bend toward each other. At this time, the two limiting blocks 414 are separated from the first motor 36 .

In one embodiment, when the structure of the self-locking component 40 is the structure of the self-locking component 40 of the above-mentioned second embodiment, by transmitting the current signal to the first conductive segment 411 and the second conductive segment 413, the current signal passes through the second A conductive segment 411 and a second conductive segment 413 are transmitted to the force applying member 42 . At this time, the force application member 42 receives the current signal, and the two ends of the force application member 42 shrink toward the middle, that is, the force application member 42 generates a contraction force. In this way, the force-applying member 42 in the contracted state exerts a pulling force on the limiting member 41 through the contraction force, thereby driving the first conductive segment 411 and the second conductive segment 413 to bend toward each other. At this time, the two limit blocks 414 are separated from the first motor 36 .

In one embodiment, when the structure of the self-locking component 40 is the structure of the self-locking component 40 of the above-mentioned third embodiment, by transmitting the current signal to the first force applying member 421 and the second force applying member 422, at this time , the first force applying member 421 and the second force applying member 422 generate heat, and shrink toward their respective middle portions respectively. In this way, the first force-applying member 421 and the second force-applying member 422 in the contracted state exert a pulling force on the force-applying member 41 through the contraction force, thereby driving the two ends of the deformation piece 411 to bend toward each other. At this time, the two limit blocks 414 are separated from the first motor 36 .

In one embodiment, when the structure of the self-locking assembly 40 is the structure of the self-locking assembly 40 of the fourth embodiment above, by transmitting the current signal to the first force application member 421 and the second force application member 422, at this time , the first force applying member 421 and the second force applying member 422 generate heat, and shrink toward their respective middle portions respectively. In this way, the first force applying member 421 and the second force applying member 422 in the contracted state drive the rigid member 411 to press the connecting member 44 through the contraction force, the connecting member 44 is compressed, and the connecting member 44 is deformed. In this way, the rigid piece 411 can move along the positive direction of the Z axis. At this time, the two limit blocks 414 are separated from the first motor 36 .

In one embodiment, when the structure of the self-locking component 40 is the structure of the self-locking component 40 of the above-mentioned fifth embodiment, by transmitting current signals to the third coil 423 and the fourth coil 424, that is, the third coil 423 When receiving the current signal with the fourth coil 424 , the third coil 423 generates a magnetic attraction force to the third magnet 421 , and the fourth coil 424 generates a magnetic attraction force to the fourth magnet 422 . In this way, the third magnet 421 and the fourth magnet 422 exert a pulling force on the deformation piece 411 through the magnetic attraction force, thereby driving the two ends of the deformation piece 411 to bend toward each other. At this time, the two limit blocks 414 are separated from the first motor 36 .

In one embodiment, when the structure of the self-locking component 40 is the structure of the self-locking component 40 of the sixth embodiment, by transmitting current signals to the third coil 423 and the fourth coil 424, that is, the third coil 423 When receiving the current signal with the fourth coil 424 , the third coil 423 generates a magnetic attraction force to the third magnet 421 , and the fourth coil 424 generates a magnetic attraction force to the fourth magnet 422 . In this way, the third magnet 421 and the fourth magnet 422 exert a pulling force on the rigid piece 411 through the magnetic attraction force, so that the rigid piece 411 presses the connecting piece 44 , the connecting piece 44 is compressed, and the connecting piece 44 is deformed. At this time, the two limit blocks 414 are separated from the first motor 36 .

S200 controls the first motor 36 to drive the first lens 381 to move along the optical axis of the zoom lens 100 .

It can be understood that the direction of the optical axis of the zoom lens 100 is the direction of the X axis. At this time, the first motor 36 can drive the first lens 381 to move along the positive direction of the X axis or the negative direction of the X axis. It can be understood that the moving distance of the first lens 381 driven by the first motor 36 along the positive direction of the X-axis or the negative direction of the X-axis can be set according to the focus adjustment requirements of the user.

S300 : When the first motor 36 moves to the target position, stop sending the control signal to the force applying member 42 , the limiting member 41 contacts the first motor 36 and generates static friction with the first motor 36 .

It can be understood that the first motor 36 is locked by using the static friction force generated by the limiting member 41 and the first motor 36 . In this way, the first motor 36 is not easy to slide along the X-axis direction under the action of the limiting member 41 .

In one embodiment, when the force applying member 42 does not apply force to the limiting member 41, the limiting member 41 is in contact with the first motor 36 under the pressure of the connecting member 44, and forms a static friction force with the first motor 36 .

It can be understood that the connecting member 44 in this embodiment can not only connect the limiting member 41 to the housing 32 , but also be used to apply force to the limiting member 41 . The connector has the effect of "one thing with multiple uses". In this case, the structure of the zoom lens 30 is relatively simple.

In addition, when the connecting piece 44 exerts a force on the limiting piece 41 , the limiting piece 41 will also exert a reaction force on the connecting piece 44 . At this time, because the connecting member 44 is connected between the limiting member 41 and the housing, the reaction force can be transmitted to the housing 32 . The overall strength of the shell 32 is relatively high, which can effectively resist the reaction force.

In this embodiment, the first motor 36 is locked by the self-locking assembly 40, so that the stability of the first lens 381 on the first motor 36 is better, that is, the first lens 381 on the first motor 36 does not It is easy to move due to external shaking or vibration, so that when the user takes a photo, the captured image is not easy to be deformed or blurred. Especially, when the user is taking pictures during exercise, the effect of the images captured by the camera module 100 is also better.

In other embodiments, the second motor 37 may also be provided with a self-locking assembly 40 . At this time, the self-locking assembly 40 can also perform the above steps on the second motor 37 . The details will not be repeated here.

In one embodiment, the zoom lens 100 further includes a Hall sensor 51 and a detection magnet 52 .

After "controlling the first motor 36 to drive the first lens 381 to move along the optical axis of the zoom lens 100", the method further includes:

The Hall sensor 51 detects the magnetic field strength of the detection magnet 52 .

When it is confirmed that the magnetic field strength is not equal to the preset magnetic field strength, the first motor 36 is controlled to drive the first lens 381 to move to the target position along the optical axis of the zoom lens 100 .

It can be understood that, when the user needs to adjust the camera module 100 (for example, to adjust the focus by 10 times), the current signal is transmitted to the first coil 363 . The first magnet 362 pushes the first moving bracket 361 to move along the positive direction of the X axis or the negative direction of the X axis under the ampere force. At this time, the first mobile support 361 is prone to fail to move to the target position. In this embodiment, the hall sensor 51 is used to detect the magnetic field strength of the detecting magnet 52, and the magnitude of the magnetic field strength and the preset magnetic field strength at the 10 times focus point is judged. When the magnetic field strength is not equal to the preset magnetic field strength at the 10x focus point, the Hall sensor 51 feeds back to the host circuit board 80 through the third circuit board 33 . At this time, the host circuit board 80 can provide a compensating current signal to the first coil 363 , so that the first moving bracket 361 moves to the target position, that is, the 10-fold focusing position. In this way, the focus accuracy of the camera module 100 can be improved through the Hall sensor 51 and the detection magnet 52 , so that the effect of the image captured by the camera module 100 is better.

The above specifically introduces an electronic device 1 and a focusing method thereof with reference to related drawings. Another electronic device 1 and a focusing method thereof will be specifically introduced below in conjunction with related drawings.

The second embodiment, most of the same content as the first embodiment will not be repeated: as shown in Figure 21 and Figure 22, Figure 21 is a schematic structural diagram of another implementation of the electronic device provided by the embodiment of this application . FIG. 22 is a partial cross-sectional schematic view of the electronic device shown in FIG. 21 at line C-C. The electronic device 1 includes a casing 60 , a screen 70 , a host circuit board 80 and a camera module 100 . For the arrangement of the casing 60 , the screen 70 , and the host circuit board 80 , refer to the arrangement of the casing 60 , the screen 70 , and the host circuit board 80 of the electronic device 100 in the first embodiment. I won't go into details here.

In this embodiment, the camera module 100 is disposed opposite to the first light-transmitting portion 64 of the rear cover 61 . In this way, the camera module 100 of the electronic device 1 directly receives the ambient light passing through the first light-transmitting portion 64 . In other words, the electronic device 1 no longer receives ambient light passing through the first light-transmitting portion 64 through the prism motor 90 of the first embodiment. The shape of the first light-transmitting portion 64 is not limited to the circle shown in FIG. 21 .

In addition, please refer to FIG. 23 , which is a partially exploded view of the camera module of the electronic device shown in FIG. 21 . The camera module 100 includes a second circuit board 10 , a photosensitive chip 20 , a filter 39 and a zoom lens 30 . In this embodiment, the arrangement of the second circuit board 10, the photosensitive chip 20 and the optical filter 39 can refer to the arrangement of the second circuit board 10, the photosensitive chip 20 and the optical filter 39 of the first embodiment, here No longer.

Please refer to FIG. 24 . FIG. 24 is an exploded view of the zoom lens of the camera module shown in FIG. 23 . The zoom lens 30 includes a base 31 , a housing 32 , an upper reed 34 , a lower reed 35 , a first motor 36 , a first lens 381 and a self-locking assembly 40 .

In addition, the base 31 includes a base plate 311 and a positioning post 312 fixedly connected to one side of the base plate 311 . In this embodiment, the number of positioning posts 312 is four. The positioning posts 312 are respectively located at four corners of the base plate 311 . In other embodiments, the number and fixing positions of the positioning posts 312 are not specifically limited.

Please refer to FIG. 24 and FIG. 22 again, the substrate 311 is fixed on the second circuit board 10 and on the same side as the photosensitive chip 20 . The substrate 311 defines a through hole 313 . The photosensitive chip 20 is disposed opposite to the through hole 313 to collect ambient light passing through the through hole 313 . The shape of the through hole 313 is not limited to the circle shown in FIG. 24 .

In one embodiment, by partially extending the photosensitive chip 20 into the through hole 313, it is possible to prevent the substrate 311 from pressing the photosensitive chip 20, and to make the photosensitive chip 20 and the substrate 311 overlap in the X-axis direction, so that The camera module 100 can be set thinner in the X-axis direction.

In one embodiment, the optical filter 39 can be arranged on the surface of the substrate 31 facing the second circuit board 10, can also be arranged on the surface of the substrate 31 facing away from the second circuit board 10, or can be arranged in the through hole 313 (for example , the side of the filter 39 is bonded to the hole wall of the through hole 313). FIG. 22 illustrates that the filter 39 is fixed on the surface of the substrate 31 facing the second circuit board 10 .

Please refer to FIG. 25 , combined with FIG. 24 , FIG. 25 is a partial structural diagram of the zoom lens shown in FIG. 24 . In the Z-axis direction, each positioning column 312 has a first stepped surface 331 and a second stepped surface 332 . In other words, there is a height difference between the first stepped surface 331 and the second stepped surface 332 in the Z-axis direction.

In addition, the upper spring 34 includes a first connecting ring 341 and a plurality of first connecting legs 342 connected to the periphery of the first connecting ring 341 . The plurality of first connecting pins 342 are respectively fixed to the plurality of first step surfaces 331 in a one-to-one correspondence. In this embodiment, the number of the first connecting pins 342 is four. The four first connecting pins 342 are respectively fixed to the four first step surfaces 331 in a one-to-one correspondence.

Please refer to FIG. 26 , combined with FIG. 24 , FIG. 26 is a partial structural diagram of the zoom lens shown in FIG. 24 . The lower spring 35 includes a second connecting ring 351 and a plurality of second connecting feet 352 connected to the periphery of the second connecting ring 351 . The plurality of second connection pins 352 are respectively fixed to the plurality of second step surfaces 332 in a one-to-one correspondence. In this embodiment, the number of the second connection pins 352 is four. The four second connecting pins 352 are respectively fixed to the four second step surfaces 332 in a one-to-one correspondence.

Please refer to FIG. 27 and FIG. 28 . FIG. 27 is an exploded view of a partial structure of the zoom lens shown in FIG. 24 at an angle. FIG. 28 is an exploded schematic diagram of a partial structure of the zoom lens shown in FIG. 27 at another angle. The first motor 36 is mounted with a first mirror 381 . The first motor 36 is used to drive the first lens 381 to move along the optical axis of the zoom lens 100 .

In this embodiment, the first lens 381 can be installed in the lens barrel, and installed to the first motor 36 through the lens barrel. The first motor 36 includes a first moving frame 361 , a first magnet 362 , a first coil 363 , a second magnet 364 and a second coil 365 .

In addition, the first moving bracket 361 includes a front surface 3611 and a rear surface 3612 opposite to each other, a left surface 3613 and a right surface 3614 opposite to each other, and an upper surface 3615 and a lower surface 3616 opposite to each other. The left surface 3613 and the right surface 3614 are connected between the front surface 3611 and the rear surface 3612 . The upper surface 3615 and the lower surface 3616 are connected between the front surface 3611 and the rear surface 3612 , and are connected between the left surface 3613 and the right surface 3614 .

It can be understood that when the rear cover 61 of the electronic device 1 is facing the user, the front surface 3611 is the surface of the first mobile bracket 361 close to the user, that is, the surface facing the positive direction of the Z-axis. The rear surface 3612 is the surface of the first mobile bracket 361 away from the user, that is, the surface facing the negative direction of the Z axis. The left surface 3613 is the surface of the first mobile bracket 361 close to the left side of the user, that is, the surface facing the negative direction of the X-axis. The right surface 3614 is the surface of the first mobile support 361 close to the right side of the user, that is, the surface facing the positive direction of the X-axis. The upper surface 3615 is the surface of the first mobile bracket 361 close to the top of the electronic device 1 , that is, the surface facing the positive direction of the Y-axis. The lower surface 3616 is the surface of the first mobile bracket 361 close to the bottom of the electronic device 1 , that is, the surface facing the negative direction of the Y-axis.

Please refer to FIG. 27 and FIG. 26 , the front surface 3611 of the first moving bracket 361 is connected to the first connecting ring 341 of the upper spring 34 . Referring to FIG. 28 and FIG. 25 , the rear surface 3612 of the first moving bracket 361 is connected to the second connecting ring 351 of the lower spring 35 . In this way, because the upper spring 34 and the lower spring 35 have elasticity, when a force is applied to the first moving bracket 361 , the first moving bracket 361 can move against the elastic force of the upper spring 34 and the lower spring 35 .

Please refer to FIG. 27 and FIG. 28 again, the right surface 3614 of the first moving bracket 361 has a first protrusion 3617 . The left surface 3613 has a second bump 3618 .

Please refer to FIG. 29 . FIG. 29 is a partial cross-sectional view of the zoom lens shown in FIG. 23 at the line D-D. The first coil 363 is sleeved on the first protrusion 3617 . The second coil 365 is sleeved on the second protrusion 3618 . In addition, the shell 32 is fixedly connected to the base plate 311 . The housing 32 and the base plate 311 enclose a receiving space 312 .

Please refer to FIG. 27 and FIG. 28 again, the housing 32 includes a front plate 322 , an upper plate 323 and a lower plate 324 opposite to each other, and a left plate 325 and a right plate 326 opposite to each other. The left plate 325 and the right plate 326 are connected between the upper plate 323 and the lower plate 324 . The front panel 322 is connected between the left panel 325 and the right panel 326 , and is connected between the upper panel 323 and the lower panel 324 . The front panel 322 is opposite to the base plate 311 . The front panel 322 defines a through hole 327 . The base plate 311 , the front plate 322 , the upper plate 323 , the lower plate 324 , the left plate 325 , and the right plate 326 roughly form a box body.

It can be understood that when the rear cover 61 of the electronic device 1 is facing the user, the front panel 322 is the panel where the housing 32 is close to the user, that is, the panel facing the positive direction of the Z-axis. The upper board 323 is a board near the top of the electronic device 1 of the casing 32 , that is, a board facing the positive direction of the Y-axis. The lower plate 324 is the plate near the bottom of the electronic device 1 of the housing 32 , that is, the plate facing the negative direction of the Y-axis. The left plate 325 is the plate of the housing 32 close to the left side of the user, that is, the plate facing the negative direction of the X-axis. The right plate 326 is the plate on the right side of the housing 32 close to the user, that is, the plate facing the positive direction of the X-axis.

Please refer to FIG. 29 again, the first magnet 362 is fixed on the right plate 326 of the housing 32 . The first magnet 362 is opposite to the first coil 363 . The second magnet 364 is fixed on the left plate 325 of the casing 32 . The second magnet 364 is opposite to the second coil 365 .

In this embodiment, when the first coil 363 receives the current signal, the first coil 363 is energized, and the current signal of the first coil 363 generates an ampere force along the Z-axis direction under the magnetic field generated by the first magnet 362 . At this time, under the ampere force, the first coil 363 overcomes the spring force of the upper reed 34 and the lower reed 35 to push the first moving bracket 361 to move along the Z-axis direction.

In addition, when the current signal is transmitted to the second coil 365 , the second coil 365 is energized, and the current signal of the second coil 365 generates an ampere force along the Z-axis direction under the magnetic field generated by the second magnet 364 . At this time, under the ampere force, the second coil 365 overcomes the spring force of the upper reed 34 and the lower reed 35 to push the first moving bracket 361 to move along the Z-axis direction.

It can be understood that by changing the direction of the current signal on the first coil 363, or setting the position of the S pole or the N pole of the first magnet 362, when the first coil 363 is energized, the first magnet 362 can generate The ampere force in the positive or negative direction of the Z axis. In addition, by changing the direction of the current signal on the second coil 365, or setting the position of the S pole or the N pole of the second magnet 364, when the second coil 365 is energized, the second coil 365 can generate The ampere force in the negative direction of the Z axis.

Please refer to FIG. 27 and FIG. 28 again, the zoom lens 30 further includes a Hall sensor 51 and a detection magnet 52 .

Wherein, the detection magnet 52 is fixed on the first moving bracket 361 . In this embodiment, the detection magnet 52 is fixed on the lower surface 3616 of the first moving bracket 361 .

In other implementations, the detection magnet 52 can also be fixed on the upper surface 3615 of the first moving bracket 361 .

In other implementation manners, the first mobile support 361 may also be provided with a sunken groove. The opening of the sinker is located on the lower surface 3616 or the upper surface 3615 . The detection magnet 52 is arranged in the sinker.

In addition, the Hall sensor 51 is used to detect the magnetic field strength of the detection magnet 52 . The hall sensor 51 is fixed on the housing 32 and faces the detection magnet 52 . In this embodiment, the Hall sensor 51 is fixed on the lower plate 324 of the housing 32 .

In other embodiments, the Hall sensor 51 can also be fixed on the upper plate 323 of the casing 32 .

It can be understood that, when the user needs to adjust the camera module 100 (for example, to adjust the focus by 10 times), the current signal is transmitted to the first coil 363 . The first coil 363 pushes the first moving support 361 to move along the positive direction of the Z axis or the negative direction of the Z axis under the ampere force. At this time, the first mobile support 361 is prone to fail to move to the target position. In this embodiment, the hall sensor 51 is used to detect the magnetic field strength of the detecting magnet 52, and the magnitude of the magnetic field strength and the preset magnetic field strength at the 10 times focus point is judged. When the magnetic field strength is not equal to the preset magnetic field strength at the 10x focus point, the Hall sensor 51 feeds back to the host circuit board 80 through the second circuit board 10 . At this time, the host circuit board 80 can provide a compensating current signal to the first coil 363 , so that the first moving bracket 361 moves to the target position, that is, the 10-fold focusing position. In this way, the focus accuracy of the camera module 100 can be improved through the Hall sensor 51 and the detection magnet 52 , so that the effect of the image captured by the camera module 100 is better.

Please refer to FIG. 30 and FIG. 31 . FIG. 30 is a partial structural diagram of the zoom lens shown in FIG. 24 . FIG. 31 is a partial structural diagram of the zoom lens shown in FIG. 24 . The self-locking assembly 40 includes a limiting member 41 , a force applying member 42 and a connecting member 44 . The connecting piece 44 is fixedly connected to the shell 32 . Specifically, for the setting method of the self-locking component 40, please refer to the setting method of the self-locking structure 40 in the first embodiment. I won't go into details here. In addition, the locking principle and unlocking principle of the limiting part 41 , the force applying part 42 and the connecting part 44 of the self-locking assembly 40 can refer to the first embodiment. I won't go into details here.

It can be understood that the self-locking assembly 40 is used to lock the first motor 36 when the first motor 36 moves to the target position. In this way, the stability of the first lens 381 on the first motor 36 is better, that is, the first lens 381 on the first motor 36 is not easy to move due to external shaking or vibration, so that when the user is taking pictures, The image is less likely to be distorted or blurred. Especially, when the user is taking pictures during exercise, the effect of the images captured by the camera module 100 is also better.

In addition, the housing 32 also includes an upper cover 321 . 27 and 28 , the upper cover 321 is detachably connected to the upper plate 323 , the lower plate 324 , the left plate 325 or the right plate 326 of the housing 32 .

In one embodiment, the lower plate 324 of the housing 32 is provided with a fixing hole 3241 . The upper cover 321 can partially pass through the fixing hole 3241 and be connected to the lower plate 324 .

In addition, the connecting piece 44 of the self-locking component 40 is fixedly connected to the upper cover 321 . In other words, the self-locking component 40 is integrated with the upper cover 321 . In this way, the installation method of the self-locking component 40 on the housing 32 is relatively simple.

In other embodiments, the self-locking component 40 can also be directly fixed to the housing 32 .

In this embodiment, this embodiment provides a focusing method for the electronic device 1 . The structure of the electronic device 1 is the electronic device 1 introduced in the second embodiment.

The focusing method of the electronic device 1 includes;

After receiving the focusing signal, a control signal is sent to the force applying member 42 , and the force applying member 42 responds to the control signal and applies force to the limiting member 41 , and the limiting member 41 is separated from the first motor 36 . It can be understood that the control signal may be a current signal or a voltage signal. In this step, the self-locking assembly 40 is in an unlocked state. For the principle that the self-locking component 40 is in the unlocked state, please refer to S100 of the focusing method of the electronic device 1 in the first embodiment. I won't go into details here.

The first motor 36 is controlled to drive the first lens 381 to move along the optical axis of the zoom lens 100 .

It can be understood that the direction of the optical axis of the zoom lens 100 is the direction of the Z axis. At this time, the first motor 36 can drive the first lens 381 to move along the positive direction of the Z axis or the negative direction of the Z axis. It can be understood that the moving distance of the first lens 381 driven by the first motor 36 along the positive direction of the Z-axis or the negative direction of the Z-axis can be set according to the user's focusing requirements.

In one embodiment, when the force applying member 42 applies a force to the limiting member 41 in response to a control signal, the limiting member 41 or the connecting member 44 is deformed so that the limiting member 41 The member 41 is separated from the first motor 36 .

It can be understood that, compared with the solution of separating the limiting member from the first motor by additionally setting a driving device in the zoom lens, this embodiment uses the limiting member of the self-locking assembly 40 The positioning member 41 or the connecting member 44 is deformed so that the limiting member 41 is separated from the first motor 36 , which has a simple structure and does not increase the complexity of the structure of the zoom lens 30 .

When the first motor 36 moves to the target position, the control signal to the force applying member 42 is stopped, and the limiting member 41 is in contact with the first motor 36 and generates static friction with the first motor 36 .

It can be understood that the first motor 36 is locked by using the static friction force generated by the limiting member 41 and the first motor 36 . In this way, the first motor 36 is not easy to slide along the Z-axis direction under the action of the limiting member 41 .

In one embodiment, when the force applying member 42 does not apply force to the limiting member 41, the limiting member 41 is in contact with the first motor 36 under the pressure of the connecting member 44, and forms a static friction force with the first motor 36 .

It can be understood that the connecting member 44 in this embodiment can not only connect the limiting member 41 to the housing 32 , but also be used to apply force to the limiting member 41 . The connector has the effect of "one thing with multiple uses". In this case, the structure of the zoom lens 30 is relatively simple.

In addition, when the connecting piece 44 exerts a force on the limiting piece 41 , the limiting piece 41 will also exert a reaction force on the connecting piece 44 . At this time, because the connecting member 44 is connected between the limiting member 41 and the housing, the reaction force can be transmitted to the housing 32 . The overall strength of the shell 32 is relatively high, which can effectively resist the reaction force.

In this embodiment, the first motor 36 is locked by the self-locking assembly 40, so that the stability of the first lens 381 on the first motor 36 is better, that is, the first lens 381 on the first motor 36 does not It is easy to move due to external shaking or vibration, so that when the user takes a photo, the captured image is not easy to be deformed or blurred. Especially, when the user is taking pictures during exercise, the effect of the images captured by the camera module 100 is also better.

In one embodiment, the zoom lens 100 further includes a Hall sensor 51 and a detection magnet 52 .

After "controlling the first motor 36 to drive the first lens 381 to move along the optical axis of the zoom lens 100", the method further includes:

The Hall sensor 51 detects the magnetic field strength of the detection magnet 52 .

When it is confirmed that the magnetic field strength is not equal to the preset magnetic field strength, the first motor 36 is controlled to drive the first lens 381 to move to the target position along the optical axis of the zoom lens 100 .

It can be understood that, when the user needs to adjust the camera module 100 (for example, to adjust the focus by 10 times), the current signal is transmitted to the first coil 363 . The first coil 363 pushes the first moving support 361 to move along the positive direction of the Z axis or the negative direction of the Z axis under the ampere force. At this time, the first mobile support 361 is prone to fail to move to the target position. In this embodiment, the hall sensor 51 is used to detect the magnetic field strength of the detecting magnet 52, and the magnitude of the magnetic field strength and the preset magnetic field strength at the 10 times focus point is judged. When the magnetic field strength is not equal to the preset magnetic field strength at the 10x focus point, the Hall sensor 51 feeds back to the host circuit board 80 through the second circuit board 10 . At this time, the host circuit board 80 can provide a compensating current signal to the first coil 363 , so that the first moving bracket 361 moves to the target position, that is, the 10-fold focusing position. In this way, the focus accuracy of the camera module 100 can be improved through the Hall sensor 51 and the detection magnet 52 , so that the effect of the image captured by the camera module 100 is better.

The above is only a specific implementation of the application, but the scope of protection of the application is not limited thereto. Anyone familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed in the application. Should be covered within the protection scope of this application. Therefore, the protection scope of the present application should be determined by the protection scope of the claims.

Claims (16)

1. A zoom lens is characterized by comprising a shell, a first motor, a first lens and a self-locking assembly;

the first motor is arranged on the inner side of the shell, the first lens is arranged on the first motor, and the first motor is used for driving the first lens to move along the optical axis direction of the zoom lens;

the self-locking assembly comprises a limiting piece, a connecting piece and a force application piece, the limiting piece is positioned between the first motor and the shell, one end of the connecting piece is fixed on the shell, the other end of the connecting piece is fixed on the limiting piece, and the force application piece is connected to the limiting piece;

when the force applying element does not apply acting force to the limiting element, the limiting element is in contact with the first motor, so that static friction force is formed between the limiting element and the first motor;

when the force applying member applies an acting force to the limiting member, the limiting member is separated from the first motor.

2. The zoom lens of claim 1, wherein the connecting member is connected to a middle portion of the limiting member, and two ends of the force applying member are respectively connected to two ends of the limiting member.

3. The zoom lens of claim 2, wherein the force applying member is a shape memory alloy.

4. The zoom lens according to claim 3, wherein the position-limiting element comprises a first conductive segment, a first insulating segment and a second conductive segment connected in sequence, one end of the force-applying element is fixed to the first conductive segment, and the other end is fixed to the second conductive segment, and the first conductive segment, the force-applying element and the second conductive segment form a current path.

5. The zoom lens of claim 4, wherein the current path further comprises a first circuit board fixed to the housing, the first and second conductive segments being electrically connected to the first circuit board.

6. The zoom lens according to claim 1, wherein the connecting member is a rigid member, the connecting member is connected to a middle portion of the limiting member, and the number of the force applying members is two, one of the force applying members is connected between one end of the limiting member and the housing, and the other of the force applying members is connected between the other end of the limiting member and the housing.

7. The zoom lens of claim 6, wherein both of the force application members are a shape memory alloy.

8. The zoom lens of claim 6, wherein each of the force applying members includes a magnet and a coil, the two magnets are respectively fixed to two ends of the limiting member, the two coils are respectively fixed to the housing, and the two coils and the two magnets are respectively disposed in one-to-one correspondence.

9. The zoom lens according to claim 1, wherein the connecting member is an elastic member, the connecting member is connected to a middle portion of the limiting member, the number of the force applying members is two, one of the force applying members is connected between one end of the limiting member and the housing, and the other of the force applying members is connected between the other end of the limiting member and the housing.

10. The zoom lens according to any one of claims 1 to 9, further comprising a hall sensor fixed to an inner side of the housing, and a detection magnet fixed to the first motor, the hall sensor being configured to detect a magnetic field strength of the detection magnet.

11. The zoom lens according to any one of claims 1 to 9, further comprising a rail fixed to an inner side of the housing, the first motor being slidably connected to the rail.

12. The zoom lens according to any one of claims 1 to 9, further comprising a base having a first step surface and a second step surface in an optical axis direction of the zoom lens, an upper reed having a peripheral edge fixed to the first step surface, and a lower reed having a peripheral edge fixed to the second step surface, the first motor having a front surface and a rear surface in the optical axis direction of the zoom lens, the front surface of the first motor being fixed to the upper reed, and the rear surface of the first motor being fixed to the lower reed.

13. A camera module, comprising a second circuit board, a photo sensor chip and the zoom lens according to any one of claims 1 to 12, wherein the photo sensor chip and the zoom lens are both fixed on the second circuit board, and the zoom lens is configured to project ambient light to the photo sensor chip.

14. An electronic device comprising a housing and the camera module of claim 13, wherein the camera module is mounted inside the housing, the housing has a first transparent portion, and the camera module is configured to collect ambient light passing through the first transparent portion.

15. A focusing method of an electronic device is characterized in that the electronic device comprises a zoom lens, and the zoom lens comprises a shell, a first motor, a first lens and a self-locking component; the first motor is mounted inside the housing, and the first lens is mounted on the first motor; the self-locking assembly comprises a limiting piece, a connecting piece and a force application piece, the limiting piece is positioned between the first motor and the shell, one end of the connecting piece is fixed on the shell, the other end of the connecting piece is fixed on the limiting piece, and the force application piece is connected to the limiting piece;

the method comprises the following steps:

receiving a focusing signal, sending a control signal to the force application member, responding to the control signal by the force application member, and applying an acting force to the limiting member, wherein the limiting member is separated from the first motor;

controlling the first motor to drive the first lens to move along the optical axis direction of the zoom lens;

when the first motor moves to the target position, the control signal is stopped being sent to the force application part, and the limiting part is in contact with the first motor and generates static friction force with the first motor.

16. The focusing method of an electronic device according to claim 15, wherein the zoom lens further comprises a hall sensor fixed to an inner side of the housing and a detection magnet fixed to the first motor;

after "controlling the first motor to move the first lens along the optical axis direction of the zoom lens", the method further includes:

the Hall sensor detects the magnetic field intensity of the detection magnet;

and when the magnetic field intensity is not equal to the preset magnetic field intensity, controlling the first motor to drive the first lens to move to the target position along the optical axis direction of the zoom lens.

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