WO2022052829A1

WO2022052829A1 - Optical lens, photographing module, electronic device, and photographing method of photographing module

Info

Publication number: WO2022052829A1
Application number: PCT/CN2021/115344
Authority: WO
Inventors: 夏太红; 李斯坤; 秦诗鑫; 郭利德; 王昕�; 卢磊; 曾义闵
Original assignee: 华为技术有限公司
Priority date: 2020-09-10
Filing date: 2021-08-30
Publication date: 2022-03-17
Also published as: CN114167570A; CN114167570B

Abstract

An optical lens (10), a photographing module (100), an electronic device (1), and a photographing method of the photographing module (100). The optical lens (10) comprises a motor (14), a first lens (151), and a self-locking assembly (50). The motor (14) comprises a driving member and a moving support. The first lens (151) is mounted on the moving support. The driving member is used for driving the moving support to move along the optical axis direction of the optical lens (10). The self-locking assembly (50) comprises a base (531), a rotating member (533), a force application member (54), an elastic member (534), and a limiting block (535). When the force application member (54) is not energized, the limiting block (535) is in contact with the moving support under the elastic force of the elastic member (534), and static friction can be generated between the limiting block (535) and the moving support. When the force application member (54) is energized, the rotating member (533) is driven to overcome the elastic force of the elastic member (534) and drive the limiting block (535) to rotate so as to separate the limiting block (535) from the moving support. The optical lens (10) is not easily affected due to external movement or shaking during photographing. When the optical lens (10) is applied to the photographing module (100) and the electronic device (1), the photographing performances of the photographing module (100) and the electronic device (1) are better.

Description

Optical lens, camera module, electronic equipment and shooting method of camera module

This application claims the priority of the Chinese patent application filed with the China Patent Office on September 10, 2020, the application number is 202010949115.0, and the application name is "photography method of optical lens, camera module, electronic equipment and camera module", which The entire contents of this application are incorporated by reference.

technical field

The present application relates to the field of lens technology, and in particular, to an optical lens, a camera module, an electronic device, and a shooting method for the camera module.

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, thus seriously affecting the user experience of the mobile phone. Therefore, it is very important how to set up a camera module with better stability and less likely to affect the shooting quality due to external movement or shaking.

SUMMARY OF THE INVENTION

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

In a first aspect, an embodiment of the present application provides an optical lens. The optical lens includes a motor, a first lens and a self-locking assembly. The motor includes a drive member and a moving bracket. The first lens is mounted on the moving bracket. The driving member is used for driving the moving bracket to move along the optical axis direction of the optical lens. In the present application, the moving support includes a first moving support and a second moving support. The optical axis direction of the optical lens is the X axis direction. In addition, the optical axis refers to an axis passing through the center of each lens.

The self-locking assembly includes a base, a rotating part, a force applying part, an elastic part and a limiting block. The base and the moving bracket are arranged at intervals. The rotating member is rotatably connected to the base. One end of the elastic member is connected to the rotating member, and the other end is connected to the base.

Wherein, the limiting block is located between the rotating member and the moving bracket. The limiting block is fixed to the rotating member. In one embodiment, the limiting block is fixed to the rotating member by tape or glue. In one embodiment, the limiting block and the rotating member are integrally formed.

Wherein, the force-applying member is used to exert a force on the rotating member when electrified. The energization condition of the force-applying member can be determined according to whether the moving bracket moves relatively. For example, when the moving bracket is not relatively moved, the force applying member is not energized. When the moving bracket moves relatively, the force applying member is energized. In addition, when the moving support is not relatively moved, the moving support is in the target position. The target position may be the focus position of the moving bracket, or may be a fixed position of the moving bracket when the optical lens does not start shooting.

When the force-applying member is not energized, the limiting block contacts the moving bracket under the elastic force of the elastic member, and a static friction force can be generated between the limiting block and the moving bracket. It can be understood that when the limiting block contacts the moving bracket under the elastic force of the elastic member, the limiting block exerts pressure on the moving bracket. At this time, when the movable bracket has a tendency to move relatively, the movable bracket generates a static friction force. Therefore, the limiting block can press the moving bracket under the elastic force of the elastic member.

When the force applying member is energized, the rotating member is driven to overcome the elastic force of the elastic member, and drives the limiting block to rotate, so as to separate the limiting block from the moving bracket.

It can be understood that whether the limit block is pressed against the moving bracket or separated from the moving bracket is controlled by controlling the energization of the force-applying member, so as to control whether the moving bracket is in a locked state , still unlocked. At this time, when the movable bracket is in a locked state, the stability of the first lens mounted on the movable bracket is better. In this way, when the optical lens is in the shooting process, the first lens is not easily moved due to external shaking or vibration, the image captured by the optical lens is not easily deformed or blurred, and the quality of the image captured by the optical lens is better. In particular, when the user takes a picture during the movement, the effect of the image captured by the optical lens is better.

In addition, when the movable bracket is in a locked state, the movable bracket can avoid collision with other components in the optical lens, thereby reducing the collision risk of the movable bracket. In addition, when the movable bracket includes the first movable bracket and the second movable bracket, by locking the first movable bracket and the second movable bracket, the collision between the first movable bracket and the second movable bracket can be avoided, thereby reducing the first movable bracket and the second movable bracket. Risk of collision between a mobile bracket and a second mobile bracket.

In addition, when the movable bracket is in the locked state, the movable bracket can avoid forced vibration. Forced vibration refers to the vibration that occurs under the action of periodic external forces.

In one embodiment, the connecting position of the limiting block and the rotating member is the first position. The force applying position of the force applying member to the rotating member is the second position. The rotational position of the rotating member is located between the first position and the second position. At this time, the limiting block, the rotating member and the force applying member form a lever structure. The limit block and the force applying member are located on both sides of the rotating position of the rotating member, and the limit block and the force applying member are not easy to interfere with each other during movement, thereby ensuring the self-locking assembly. reliability.

In one embodiment, the distance between the first position and the rotational position of the rotating member is the first distance. The distance between the second position and the rotation position of the rotating member is the second distance. The first distance is greater than the second distance. At this time, when the force-applying member is energized, the angle at which the force-applying member pulls the rotating member to rotate is relatively large, and the distance between the limiting block and the moving bracket is relatively large. In this way, when the moving bracket moves along the X-axis direction, it is not easy to interfere with the limiting block.

In one embodiment, the force applying member is a shape memory alloy. The direction of the acting force is the same as the pressure exerted by the limiting block on the moving bracket.

It can be understood that by setting the direction of the acting force to be the same as the pressure exerted by the limiting block on the moving bracket, the force applying member and the moving bracket are located on the same side of the rotating member. At this time, the extending direction of the force applying member can have an overlapping area with the extending direction of the moving bracket in the Y-axis. In this way, when the length of the force applying member is greatly increased, the force applying member will not increase the length of the optical lens in the Y-axis direction. In addition, when the length of the force-applying member increases to a large extent, the contraction length of the force-applying member under power-on is also relatively large, and at this time, the angle at which the force-applying member pulls the rotating member to rotate is also relatively large. , the distance between the limit block and the moving bracket is also relatively large. In this way, when the moving bracket moves along the X-axis direction, it is not easy to interfere with the limiting block.

In one embodiment, the material of the rotating member is a conductive material. The self-locking assembly further includes a first circuit board, a connector and a rotating shaft. The first circuit board is spaced apart from the moving bracket. The first circuit board includes first pins and second pins arranged at intervals. The connector is fixed on the first circuit board, and the connector is electrically connected to the first pin. One end of the force applying member is fixed to the connector, and the other end is fixed to the rotating member. One end of the rotating shaft is fixed to the base, and the other end is rotatably connected to the rotating member. The rotating shaft is electrically connected to the second pin. At this time, the first circuit board, the connector, the force applying member, the rotating shaft and the rotating member form a current path. It can be understood that the rotating shaft can not only be used to rotate the rotating member relative to the base, but also can be used as a part of the current path. The reel has the effect of "multi-purpose for one thing". In addition, the rotating member can not only be used to drive the limit block to rotate, but also can be used as a part of the current path. Rotating parts also have the effect of "multi-purpose".

In one embodiment, the elastic member is located on a side of the rotating member away from the limiting block, and the elastic member is disposed opposite to the limiting block.

It can be understood that, by arranging the elastic member on the side of the rotating member away from the limit block, when the moving bracket moves along the X-axis direction, the elastic member is not easily connected with the movement. The bracket interferes, thereby ensuring the reliability of the self-locking assembly.

In addition, by arranging the elastic member to be opposite to the limiting block, when the force-applying member exerts a pulling force on the rotating member, the elastic member is not likely to interfere with the force-applying member, thereby ensuring that the self Reliability of lock components.

In one embodiment, the connecting position of the limiting block and the rotating member is the first position. The force applying position of the force applying member to the rotating member is the second position. The first position and the second position are located on the same side of the rotational position of the rotating member. At this time, the force-applying distance of the force-applying member to the limiting block is shorter, and the limiting block is more easily separated from the moving bracket.

In one embodiment, the material of the rotating member is a magnetic material. The force-applying member includes a magnetic member and a coil wound on the surface of the magnetic member. One end of the magnetic member is fixed on the base, and the other end faces the rotating member. The direction of the acting force is opposite to the pressure exerted by the limiting block on the moving bracket. At this time, the force applying member and the moving bracket are located on different sides of the rotating member. When the moving bracket moves along the X-axis direction, the moving bracket is not easy to interfere with the force applying member. In addition, the magnetic field generated by the force-applying member does not easily affect the movement of the movable bracket along the X-axis direction.

In one embodiment, the elastic member and the force applying member are located on the same side of the rotating member, and the elastic member and the force applying member are located on both sides of the rotating position of the rotating member.

It can be understood that, by arranging the elastic member and the force-applying member to be located on the same side of the rotating member, when the moving bracket is moving, the elastic member is not easy to collide with the moving bracket. or interfere with each other.

In addition, by arranging the elastic member and the force-applying member on both sides of the rotating position of the rotating member, when the force-applying member exerts force on the rotating member, the elastic member is not easily connected to the rotating member. The force-applying members interfere with each other.

In one embodiment, the motor further includes a base plate, a fixing bracket and a guide rail. The fixing bracket is arranged opposite to the base plate. One end of the guide rail is fixed to the base plate, and the other end is fixed to the fixing bracket. The moving bracket is located between the base plate and the fixed bracket, and is movably connected to the guide rail. The optical lens further includes a second lens. The second lens is mounted on the fixing bracket. The second lens is located on the object side of the first lens.

It can be understood that, taking the lens as the boundary, the side where the subject is located is the object side. The surface of the lens near the object side is called the object side. The side where the image of the subject is located is the image side. The surface of the lens near the image side is called the image side.

It can be understood that by arranging the second lens on the object side of the first lens, the second lens can receive light with a large angle of view to a greater extent. At this time, the viewing angle of the optical lens can be greatly improved.

In one embodiment, the optical lens further includes a housing. The base plate and the fixing bracket are located inside the casing and are fixed to the casing. The movable bracket includes a first movable bracket and a second movable bracket arranged at intervals. Wherein, the first lens is fixed on both the first movable bracket and the second movable bracket. The driving member includes a first magnet, a first coil, a second magnet and a second coil. The first magnet is fixed to the first moving bracket. The first coil is fixed on the inner side of the casing and faces the first magnet. The second magnet is fixed on the second moving bracket. The second coil is fixed on the inner side of the casing and faces the second magnet.

It can be understood that, when the movable brackets are arranged as the first movable bracket and the second movable bracket arranged at intervals, the first lens mounted on the first movable bracket and the second movable bracket can move along the X-axis direction alone. . At this time, the optical design freedom of the optical lens is better.

In one embodiment, the optical lens further includes a lens circuit board. The lens circuit board is electrically connected to the first coil and the second coil. At this time, the lens circuit board can transmit signals to the first coil and the second coil.

In one embodiment, the optical lens further includes a Hall sensor and a detection magnet. The detection magnet is fixed on the moving bracket. The Hall sensor is used to detect the magnetic field strength when the detection magnet is at different positions.

It can be understood that when the moving bracket moves toward the target position along the X-axis direction, the moving bracket is prone to not move to the target position. In this embodiment, the Hall sensor is used to measure the magnetic field strength at the position where the detection magnet is located, and it is determined whether the magnetic field strength is equal to the preset magnetic field strength at the target position. When the magnetic field strength is not equal to the preset magnetic field strength at the target position, the driving member can continue to push the movable bracket to move along the X-axis direction, so that the movable bracket can accurately move to the target position. Therefore, by providing the Hall sensor and the detection magnet, the accuracy of the movement of the movable bracket in the X-axis direction can be significantly improved.

In one embodiment, the optical lens further includes a prism motor and a reflector. The reflector is rotatably connected to the prism motor. The reflector is used for reflecting ambient light, so that the ambient light is transmitted to the first lens. The reflector of this embodiment is described by taking a triangular prism as an example.

It can be understood that the optical lens is prone to shake during the process of collecting ambient light, and at this time, the transmission path of the ambient light is prone to deflection, resulting in poor images captured by the optical lens. In this embodiment, when the transmission path of the ambient light is deflected, the prism motor can drive the triangular prism to rotate, so that the triangular prism can be used to adjust the transmission path of the ambient light and reduce or avoid the occurrence of the transmission path of the ambient light. deflection, thereby ensuring that the optical lens has a better shooting effect. Therefore, the reflector can play an optical anti-shake effect.

In a second aspect, the embodiments of the present application provide another optical lens. The optical lens includes a motor, a first lens and a self-locking assembly. The motor includes a drive member and a moving bracket. The first lens is mounted on the moving bracket. The driving member is used for driving the moving bracket to move along the optical axis direction of the optical lens. In the present application, the moving support includes a first moving support and a second moving support. The optical axis direction of the optical lens is the X axis direction. In addition, the optical axis refers to an axis passing through the center of each lens.

The self-locking assembly includes a first clip and a second clip. Wherein, the first fastener is fixed on the moving bracket. A first through hole is formed on the first fastener. In one embodiment, the first fastener is fixed to the moving bracket by tape or glue. In one embodiment, the first clip and the moving bracket are integrally formed.

Wherein, the second fastener includes an elastic member, a limiting block and a force applying member. The elastic member is located on a side of the first latching member away from the moving bracket. The elastic member may be an elastic piece or a spring.

Wherein, the limiting block is located between the elastic member and the moving bracket. The limiting block is fixed on one end of the elastic piece. In one embodiment, the limiting block is fixed to the elastic member by tape or glue. In one embodiment, the limiting block and the elastic member are integrally formed.

The force applying member is used for applying force to the limit block when the power is turned on. The energization condition of the force-applying member can be determined according to whether the moving bracket moves relatively. For example, when the moving bracket is not relatively moved, the force applying member is not energized. When the moving bracket moves relatively, the force applying member is energized. In addition, when the movable bracket is not relatively moved, the movable bracket is in a fixed position. The fixed position is a position of the moving bracket when the optical lens does not start shooting.

When the force applying member is not energized, part of the limiting block is located in the first through hole. At this time, the hole wall of the first through hole can limit the movement of the limiting block.

When the force applying member is energized, the limiting block is driven to overcome the elastic force of the elastic member and move out of the first through hole.

It can be understood that whether the limit block is located in the first through hole or moved out of the first through hole is controlled by controlling the power-on condition of the force applying member, so as to control whether the moving bracket is in the locked state. tight, or unlocked. At this time, when the movable bracket is in a locked state, the stability of the first lens mounted on the movable bracket is better.

In addition, when the movable bracket is in a locked state, the movable bracket can avoid collision with other components in the optical lens, thereby reducing the collision risk of the movable bracket. In addition, when the movable bracket includes the first movable bracket and the second movable bracket, by locking the first movable bracket and the second movable bracket, the collision between the first movable bracket and the second movable bracket can be avoided, thereby reducing the first movable bracket and the second movable bracket. Risk of collision between a mobile bracket and a second mobile bracket. The reliability of the moving bracket is better.

In one embodiment, the second fastener further includes a base and a sliding block. One end of the elastic member away from the limiting block is fixed on the base. The sliding block is connected between the elastic member and the limiting block. The sliding block is slidably connected to the base.

Wherein, the material of the sliding block is a magnetic material. For example, the sliding block may be a magnet or a magnetic steel.

Wherein, the force-applying member includes a magnetic member and a coil wound on the surface of the magnetic member. One end of the magnetic piece is fixed on the base, and the other end faces the sliding block.

In one embodiment, the elastic member is sleeved with the force applying member. At this time, the force applying member is located inside the elastic member. The force applying member can effectively utilize the inner space of the elastic member. The assembly of the elastic member and the force-applying member is relatively compact, and the space utilization rate of the optical lens is high.

In one embodiment, when the force applying member is not energized, the elastic member applies elastic force to the sliding block. It can be understood that, by pressing the limit block into the first through hole of the first fastener by the elastic force of the elastic member, the stability of the limit block can be better, that is, The limiting block is not easy to move out of the first through hole of the first clip.

In one embodiment, the elastic member includes a first fixing portion, a connecting portion and a second fixing portion. The connecting portion is connected between the first fixing portion and the second fixing portion. The second fixing portion is disposed opposite to the first fixing portion. At this time, the shape of the elastic member is roughly "C" shape.

Wherein, the limiting block is fixed on a side of the second fixing portion away from the first fixing portion.

The force applying member is a shape memory alloy, one end of the force applying member is connected to the first fixing portion, and the other end is connected to the second fixing portion.

In one embodiment, the material of the second fixing portion and the connecting portion is a conductive material. The self-locking assembly further includes a first circuit board. The first circuit board includes first pins and second pins arranged at intervals.

The first fixing portion includes a first conductive segment, an insulating segment and a second conductive segment. One end of the insulating segment is connected to the first conductive segment, and the other end is connected to the second conductive segment. The first conductive segment is connected to one end of the force applying member. The second conductive segment is connected to the connecting portion. The first conductive segment is electrically connected to the first pin. The second conductive segment is electrically connected to the second pin. In this way, the first circuit board, the first conductive segment, the force applying member, the second fixing portion, the connecting portion and the second conductive segment form a current path.

It can be understood that, the elastic member can not only be used to drive the limiting block to extend into the first through hole or extend out of the first through hole, but also can be used as a part of the current path. The elastic member has the effect of "multi-purpose".

It can be understood that, when the movable brackets are arranged as the first movable bracket and the second movable bracket arranged at intervals, the first lens mounted on the first movable bracket and the second movable bracket can move along the X-axis direction alone. . In this case, the optical lens has a better degree of freedom in optical design, and the cooperative movement among the plurality of first lenses is more flexible.

It can be understood that, when the moving bracket moves toward the target position along the X-axis direction, the moving bracket is likely to fail to move to the target position. In this embodiment, the Hall sensor is used to measure the magnetic field strength at the position where the detection magnet is located, and it is determined whether the magnetic field strength is equal to the preset magnetic field strength at the target position. When the magnetic field strength is not equal to the preset magnetic field strength at the target position, the driving member can continue to push the movable bracket to move along the X-axis direction, so that the movable bracket can accurately move to the target position. Therefore, by providing the Hall sensor and the detection magnet, the accuracy of the movement of the movable bracket in the X-axis direction can be significantly improved.

In a third aspect, an embodiment of the present application provides a camera module. The camera module includes a module circuit board, a photosensitive chip, an optical filter, and the above-mentioned optical lens. The optical lens includes the optical lens of the first aspect and the optical lens of the second aspect.

Wherein, the module circuit board is located on the image side of the optical lens. The photosensitive chip is fixed on the side of the module circuit board facing the optical lens. The photosensitive chip is used for collecting ambient light passing through the optical lens.

Wherein, the filter is fixed on the side of the photosensitive chip facing the optical lens. The filter can be used to filter stray light in ambient light, and make the filtered ambient light propagate to the photosensitive chip, so as to ensure that the image captured by the camera module has better clarity.

It can be understood that when the above-mentioned optical lens is applied to the camera module, the internal structure of the camera module is not likely to collide or interfere with each other due to external vibration or shaking, and the reliability of the camera module better. In addition, the stability of the camera module is good, and the optical lens is not prone to forced vibration.

In a fourth aspect, an embodiment of the present application provides an electronic device. The electronic device may be a mobile phone, a tablet computer, or the like. The electronic device includes a casing and the above-mentioned camera module, and the camera module is mounted on the casing.

It can be understood that when the above-mentioned camera module is applied to the electronic device, the reliability of the electronic device is better. In addition, the stability of the electronic device is good, and the electronic device is not prone to forced vibration.

In a fifth aspect, an embodiment of the present application provides a shooting method for a camera module. The camera module includes an optical lens and a photosensitive chip. The photosensitive chip is located on the image side of the optical lens. The optical lens includes a motor, a first lens and a self-locking assembly. The motor includes a drive member and a moving bracket. The first lens is mounted on the moving bracket. The driving member is used for driving the moving bracket to move along the optical axis direction of the optical lens. In the present application, the moving support includes a first moving support and a second moving support. The optical axis direction of the optical lens is the X axis direction. In addition, the optical axis refers to an axis passing through the center of each lens. The self-locking assembly includes a base, a rotating part, a force applying part, an elastic part and a limiting block. The base and the moving bracket are arranged at intervals. The rotating member is rotatably connected to the base. One end of the elastic member is connected to the rotating member, and the other end is connected to the base. Wherein, the limiting block is located between the rotating member and the moving bracket. The limiting block is fixed to the rotating member.

The shooting method includes:

receive shooting signals;

Control the power-on of the force-applying member, so that the force-applying member exerts a force on the rotating member, so as to drive the rotating member to overcome the elastic force of the elastic member, and drive the limiting block to rotate and leave the movement bracket;

controlling the moving bracket to drive the first lens to move along the optical axis of the optical lens;

When the moving bracket moves to the target position, the force application member is controlled to be powered off, and the rotating member drives the limit block to rotate under the elastic force of the elastic member, so that the limit block is pressed against the desired position. contact with the moving bracket;

The photosensitive chip is controlled to convert optical signals into electrical signals and output them.

In one embodiment, the optical lens further includes a Hall sensor and a detection magnet, and the detection magnet is fixed to the moving bracket;

In "controlling the moving bracket to drive the first lens to move along the optical axis of the optical 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 moving bracket is controlled to drive the first lens to move the target position along the optical axis direction of the optical lens.

In a sixth aspect, the embodiments of the present application provide another shooting method for a camera module. The camera module includes an optical lens and a photosensitive chip. The photosensitive chip is located on the image side of the optical lens. The optical lens includes a motor, a first lens and a self-locking assembly. The motor includes a drive member and a moving bracket. The first lens is mounted on the moving bracket. The driving member is used for driving the moving bracket to move along the optical axis direction of the optical lens. In the present application, the moving support includes a first moving support and a second moving support. The optical axis direction of the optical lens is the X axis direction. In addition, the optical axis refers to an axis passing through the center of each lens. The self-locking assembly includes a first clip and a second clip. Wherein, the first fastener is fixed on the moving bracket. A first through hole is formed on the first fastener. In one embodiment, the first fastener is fixed to the moving bracket by tape or glue. In one embodiment, the first clip and the moving bracket are integrally formed. Wherein, the second snap member includes an elastic member, a limiting block and a force applying member. The elastic member is located on a side of the first latching member away from the moving bracket. The elastic member may be an elastic piece or a spring. Wherein, the limiting block is located between the elastic member and the moving bracket. The limiting block is fixed on one end of the elastic piece.

The shooting method includes:

receive shooting signals;

Controlling the energization of the force-applying member, so that the force-applying member applies a force to the limit block, so as to drive the limit block to overcome the elastic force of the elastic member and move out of the first through hole;

controlling the moving bracket to drive the first lens to move from a fixed position to a target position along the optical axis of the optical lens;

controlling the photosensitive chip to convert optical signals into electrical signals and output them;

controlling the moving bracket to drive the first lens to move from the target position to the fixed position along the optical axis direction of the optical lens;

Controlling the power of the force applying member to power off, part of the limiting block protrudes into the first through hole under the elastic force of the elastic member.

In "controlling the moving bracket to drive the first lens to move from a fixed position to a target position along the optical axis of the optical 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 moving bracket is controlled to drive the first lens to move the target position along the optical axis direction of the optical lens from the fixed position.

Description of drawings

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

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

Fig. 2 is a partial exploded schematic view of the electronic device shown in Fig. 1;

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

Fig. 4 is the structural representation of the camera module of the electronic device shown in Fig. 1;

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

6 is a partially exploded schematic view of the optical lens shown in FIG. 5;

FIG. 7 is a partially exploded schematic view of an embodiment of the lens assembly shown in FIG. 6;

FIG. 8 is a partially exploded schematic view of the motor shown in FIG. 7;

FIG. 9 is a partially exploded schematic view of the motor shown in FIG. 7;

Figure 10 is a partially exploded schematic view of the motor shown in Figure 7;

11 is a partial structural schematic diagram of the camera module shown in FIG. 4 under the first embodiment;

12 is a partial structural schematic diagram of the camera module shown in FIG. 4 under the first embodiment;

13 is a partial structural schematic diagram of the camera module shown in FIG. 4 under the first embodiment;

Figure 14 is a partially exploded schematic view of the self-locking assembly shown in Figure 13;

Fig. 15 is a partial structural schematic diagram of the camera module shown in Fig. 13;

Figure 16 is an exploded schematic view of the self-locking member shown in Figure 14;

17 is a schematic diagram of a state of the structure of the camera module shown in FIG. 4 under the first embodiment;

Figure 18 is an enlarged schematic view of part of the camera module shown in Figure 17 at B;

19 is a schematic diagram of the camera module shown in FIG. 4 in another state of the structure of the first embodiment;

20 is a schematic flowchart of a shooting method of the camera module shown in FIG. 1 under the first embodiment;

FIG. 21 is a partially exploded schematic view of another embodiment of the lens assembly shown in FIG. 6;

22 is a partial structural schematic diagram of the camera module shown in FIG. 4 under the second embodiment;

Figure 23 is a partial exploded schematic view of the self-locking assembly shown in Figure 22;

Figure 24 is an exploded schematic view of the self-locking member shown in Figure 23;

Figure 25 is a partially exploded schematic view of the self-locking assembly shown in Figure 22;

26 is a schematic diagram of a state of the structure of the camera module shown in FIG. 4 under the second embodiment;

Figure 27 is an enlarged schematic view of the part of the camera module shown in Figure 26 at C;

28 is a schematic diagram of another state of the structure of the camera module shown in FIG. 4 under the second embodiment;

FIG. 29 is a partially exploded schematic view of still another embodiment of the lens assembly shown in FIG. 6;

30 is a schematic diagram of a state of the structure of the camera module shown in FIG. 4 under the third embodiment;

Figure 31 is a partially exploded schematic view of the self-locking assembly shown in Figure 30;

Fig. 32 is a partial exploded schematic view of the second clip shown in Fig. 30;

Fig. 33 is a partial structural schematic diagram of the second clip shown in Fig. 31;

Fig. 34 is a partial structural schematic diagram of the second clip shown in Fig. 31;

Figure 35 is an enlarged schematic view of the part of the camera module shown in Figure 30 at D;

36 is a schematic diagram of another state of the structure of the camera module shown in FIG. 4 under the third embodiment;

37 is a schematic flowchart of a shooting method of the camera module shown in FIG. 1 under a third embodiment;

38 is a partially exploded schematic view of still another embodiment of the lens assembly shown in FIG. 6;

39 is a schematic diagram of a state of the structure of the camera module shown in FIG. 4 under the fourth embodiment;

Figure 40 is a partially exploded schematic view of the self-locking assembly shown in Figure 39;

Figure 41 is a partially exploded schematic view of the second clip shown in Figure 40;

Figure 42 is a partial structural schematic view of the self-locking assembly shown in Figure 39;

Figure 43 is an enlarged schematic view of the part of the camera module shown in Figure 39 at E;

FIG. 44 is a schematic diagram of another state of the structure of the camera module shown in FIG. 4 under the fourth embodiment.

detailed description

The embodiments of the present application will be described below with reference to the accompanying drawings in the embodiments of the present application.

Please refer to FIG. 1 , which is a schematic structural diagram of an electronic device 1 provided by 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, Augmented reality (AR) glasses, AR helmets, virtual reality (VR) glasses or VR helmets, or other forms of equipment with photography and videography functions. The electronic device 1 of the embodiment shown in FIG. 1 is described by taking a mobile phone as an example.

Please refer to FIG. 2 in combination with FIG. 1 . FIG. 2 is a partial exploded schematic view of the electronic device 1 shown in FIG. 1 . The electronic device 1 includes a casing 70 , a screen 80 , a host circuit board 90 and a camera module 100 . It should be noted that FIGS. 1, 2 and the following related drawings only schematically show some components included in the electronic device 1, and the actual shapes, actual sizes, actual positions and actual structures of these components are not affected by those shown in FIGS. 1 and 1. 2 and the accompanying drawings below. In addition, when the electronic device 1 is some other device, the electronic device 1 may also not include the screen 80 and the host circuit board 90 .

For the convenience of description, the width direction of the electronic device 1 is defined as the X axis. The longitudinal direction of the electronic device 1 is the Y axis. The thickness direction of the electronic device 1 is the Z axis. It can be understood that, the coordinate system setting of the electronic device 1 can be flexibly set according to specific actual needs.

The housing 70 includes a frame 71 and a back cover 72 . The rear cover 72 is fixed to one side of the frame 71 . In one embodiment, the back cover 72 is fixedly connected to the frame 71 by adhesive. In another embodiment, the rear cover 72 and the frame 71 form an integral molding structure, that is, the rear cover 72 and the frame 71 are an integral structure.

In other embodiments, the housing 70 may also include a midplane (not shown). The middle plate is connected to the inner surface of the frame 71 . The middle plate is opposite to and spaced apart from the rear cover 72 .

Please refer to FIG. 2 again, the screen 80 is fixed on the other side of the frame 71 . At this time, the screen 80 is disposed opposite to the rear cover 72 . The screen 80 , the frame 71 and the back cover 72 together enclose the interior of the electronic device 1 . The interior of the electronic device 1 can be used to place components of the electronic device 1 , such as a battery, a receiver, and a microphone.

In this embodiment, the screen 80 may be used to display images, text, and the like. The screen 80 may be a flat screen or a curved screen. The screen 80 includes a first cover 81 and a display screen 82 . The first cover plate 81 is stacked on the display screen 82 . The first cover plate 81 can be disposed close to the display screen 82 , and can be mainly used for protecting and dustproofing the display screen 82 . The material of the first cover plate 81 may be, but not limited to, glass. The display screen 82 can adopt an organic light-emitting diode (organic light-emitting diode, OLED) display screen, an active matrix organic light emitting diode or an active matrix organic light emitting diode (active-matrix organic light-emitting diode, AMOLED) display screen , quantum dot light emitting diode (quantum dot light emitting diodes, QLED) display, etc.

Please refer to FIG. 3 in conjunction with FIG. 2 . FIG. 3 is a partial cross-sectional schematic diagram of the electronic device 1 shown in FIG. 1 at the line A-A. The host circuit board 90 is fixed inside the electronic device 1 . Specifically, the host circuit board 90 may be fixed to the side of the screen 80 facing the back cover 72 . In other embodiments, when the housing 70 includes a midplane, the host circuit board 90 may be fixed to the surface of the midplane facing the rear cover 72 .

It can be understood that the host circuit board 90 may be a rigid circuit board, a flexible circuit board, or a flexible-rigid circuit board. The host circuit board 90 may use an FR-4 dielectric board, a Rogers (Rogers) dielectric board, or a mixed FR-4 and Rogers dielectric board, and so on. Here, FR-4 is the code name for a flame-resistant material grade, and the Rogers dielectric board is a high-frequency board. Additionally, the host circuit board 90 may be used to house the chips. For example, the chip may be a central processing unit (central processing unit, CPU), a graphics processing unit (graphics processing unit, GPU), and a universal flash storage (universal flash storage, UFS) and the like.

Please refer to FIG. 3 again, and with reference to FIG. 2 , the camera module 100 is fixed inside the electronic device 1 . Specifically, the camera module 100 is fixed on the side of the screen 80 facing the back cover 72 . In other embodiments, when the housing 70 includes a middle plate, the camera module 100 can be fixed on the surface of the middle plate facing the rear cover 72 .

In addition, the host circuit board 90 is provided with an escape space 91 . The shape of the avoidance space 91 is not limited to the rectangular shape illustrated in FIGS. 1 and 2 . At this time, the shape of the host circuit board 90 is not limited to the "┘" shape shown in FIGS. 1 and 2 . The camera module 100 is located in the avoidance space 91 . In this way, in the Z-axis direction, the camera module 100 and the host circuit board 90 have an overlapping area, so as to avoid an increase in the thickness of the electronic device 1 due to the camera module 100 being stacked on the host circuit board 90 . In other embodiments, the host circuit board 90 may not be provided with the avoidance space 91 . At this time, the camera module 100 may be stacked on the host circuit board 90 , or disposed at intervals from the host circuit board 90 .

In this embodiment, the camera module 100 is electrically connected to the host circuit board 90 . Specifically, the camera module 100 is electrically connected to the CPU through the host circuit board 90 . When the CPU receives the user's instruction, the CPU can send a signal to the camera module 100 through the host circuit board 90 to control the camera module 100 to capture images or record videos. In other embodiments, when the electronic device 1 is not provided with the host circuit board 90 , the camera module 100 can also directly receive the user's instruction, and take images or video according to the user's instruction.

Please refer to FIG. 3 again, the rear cover 72 defines a through hole 73 . The through hole 73 communicates the inside of the electronic device 1 to the outside of the electronic device 1 . The electronic device 1 further includes a camera decoration part 61 and a second cover plate 62 . Part of the camera decorations 61 may be fixed on the inner surface of the back cover 72 , and some of the camera decorations 61 are in contact with the hole walls of the through holes 73 . The second cover plate 62 is fixedly connected to the inner surface of the camera decorative piece 61 . The camera decoration 61 and the second cover 62 separate the inside of the electronic device 1 from the outside of the electronic device 1 , so as to prevent water or dust from entering the inside of the electronic device 1 through the through hole 73 . The material of the second cover plate 62 is a transparent material. For example, glass or plastic. At this time, ambient light outside the electronic device 1 can enter the interior of the electronic device 1 through the second cover plate 62 . The camera module 100 collects ambient light entering the interior of the electronic device 1 .

It can be understood that the shape of the through hole 73 is not limited to the circle shown in FIG. 1 and FIG. 2 . For example, the shape of the through hole 73 may also be an ellipse or other irregular shapes.

In other embodiments, the camera module 100 can also collect ambient light passing through the back cover 72 . Specifically, the material of the back cover 72 is a transparent material. For example, glass or plastic. The surface of the rear cover 72 facing the inside of the electronic device 1 is partially coated with ink and partially uncoated with ink. At this time, the area where the ink is not applied forms the light-transmitting area. When ambient light enters the interior of the electronic device 1 through the light-transmitting area, the camera module 100 collects ambient light. It can be understood that, the electronic device 1 of this embodiment may not need to open the through hole 73 , nor may the camera decorative member 61 and the second cover plate 62 be provided. The electronic device 1 has better integrity and lower cost.

As shown in FIG. 4 and FIG. 5 , FIG. 4 is a schematic structural diagram of the camera module 100 of the electronic device 1 shown in FIG. 1 . FIG. 5 is a partially exploded schematic view of the camera module 100 shown in FIG. 4 . The camera module 100 includes an optical lens 10 , a module circuit board 20 , a photosensitive chip 30 and a filter 40 . It should be noted that the optical axis direction of the optical lens 10 is the same as the optical axis direction of the camera module 100 .

The module circuit board 20 is fixed on the light-emitting side of the optical lens 10 , that is, the module circuit board 20 is located on the image side of the optical lens 10 . FIG. 4 illustrates that the module circuit board 20 and the optical lens 10 roughly enclose the shape of a cuboid. As shown in FIG. 3 , the module circuit board 20 can be electrically connected to the host circuit board 90 . In this way, signals can be transmitted between the host circuit board 90 and the module circuit board 20 .

The modular circuit board 20 may be a rigid circuit board, a flexible circuit board, or a flexible-rigid circuit board. In addition, the modular circuit board 20 may use 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. 3 again, the photosensitive chip 30 is fixed on the side of the module circuit board 20 facing the optical lens 10 . The photosensitive chip 30 is electrically connected to the module circuit board 20 . In this way, after the photosensitive chip 30 collects the ambient light, the photosensitive chip 30 generates a signal according to the ambient light, and transmits the signal to the host circuit board 90 via the module circuit board 20 .

In one embodiment, the photosensitive chip 30 may be mounted on the module circuit board 20 through a chip on board (COB) technology. In other embodiments, the photosensitive chip 30 may also be packaged on the module circuit board 20 by a ball grid array (BGA) technology or a land grid array (LGA) technology.

In other embodiments, electronic components or other chips (eg, driver chips) are also mounted on the modular circuit board 20 . Electronic components or other chips are arranged around the photosensitive chip 30 . The electronic components or other chips are used to assist the photosensitive chip 30 to collect ambient light, and to assist the photosensitive chip 30 to perform signal processing on the collected ambient light.

In other embodiments, a reinforcing plate is provided on a side of the module circuit board 20 away from the photosensitive chip 30 . For example, the reinforcing plate is a steel plate. The reinforcing plate can improve the strength of the module circuit board 20 .

In other embodiments, the module circuit board 20 may also be partially provided with a sink, and in this case, the photosensitive chip 30 may be installed in the sink. In this way, the photosensitive chip 30 and the module circuit board 20 have an overlapping area 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. 3 again, the filter 40 is located on the side of the photosensitive chip 30 facing the optical lens 10 . The filter 40 can be used to filter the stray light of ambient light passing through the optical lens 10 , and make the filtered ambient light propagate to the photosensitive chip 30 , so as to ensure that the image captured by the electronic device 1 has better clarity. The filter 40 may be, but is not limited to, a blue glass filter. For example, the filter 40 can also be a reflective infrared filter, or a double-pass filter (the double-pass filter can transmit visible light and infrared light in ambient light at the same time, or allow visible light in ambient light to pass through at the same time. It transmits light of other specific wavelengths (such as ultraviolet light) at the same time, or transmits infrared light and light of other specific wavelengths (such as ultraviolet light) at the same time.).

Please refer to FIG. 6 , which is a partially exploded schematic view of the optical lens 10 shown in FIG. 5 . The optical lens 10 includes a lens assembly 101 and a reflection assembly 11 . The optical axis direction of the lens assembly 101 is the same as the optical axis direction of the optical lens 10 . The reflection assembly 11 is fixed on the light incident side of the lens assembly 101 . FIG. 5 illustrates the shape of the reflection assembly 11 and the lens assembly 101 roughly enclosing a rectangular parallelepiped. Wherein, the reflection component 11 is used for reflecting the ambient light, so that the ambient light is transmitted to the lens component 101 . In this embodiment, the reflection component 11 may be used to reflect the ambient light propagating along the Z-axis direction to the ambient light propagating along the X-axis direction. In other embodiments, the reflection component 11 may be used to reflect ambient light propagating along the Z-axis direction to ambient light propagating in other directions.

The reflecting assembly 11 includes a prism motor 111 and a reflecting member 112 . The prism motor 111 is fixed to the light incident side of the lens assembly 101 . The reflector 112 is located inside the prism motor 111 . The reflector 112 may be a triangular prism or a reflector. The reflecting member 112 in this embodiment is described by taking a triangular prism as an example. It should be noted that the reference numerals of the triangular prisms below are the same as those of the reflector 112 .

Please refer to FIG. 6 again, the prism motor 111 is provided with a first light-transmitting hole 1111 . The first light-transmitting hole 1111 communicates the inside of the prism motor 111 to the outside of the prism motor 111 . The shape of the first light-transmitting hole 1111 is not limited to the rectangle shown in FIG. 6 . As shown in FIG. 3 , the first light-transmitting hole 1111 is disposed opposite to the second cover plate 62 . At this time, ambient light outside the electronic device 1 can enter the interior of the prism motor 111 through the second cover plate 62 and the first light-transmitting hole 1111 .

Please refer to FIG. 3 again, the prism motor 111 is provided with a second light-transmitting hole 1112 . The second light-transmitting hole 1112 communicates the inside of the prism motor 111 to the outside of the prism motor 111 . The second light-transmitting hole 1112 faces the lens assembly 101 .

In addition, the triangular prism 112 includes a light incident surface 1121 , a reflection surface 1122 and a light exit surface 1123 . The reflective surface 1122 is connected between the light incident surface 1121 and the light exit surface 1123. The light incident surface 1121 is disposed opposite to the first light transmission hole 1111 . The light-emitting surface 1123 is disposed opposite to the second light-transmitting hole 1112 . At this time, when ambient light enters the prism motor 111 through the first light-transmitting hole 1111 , the ambient light enters the triangular prism 112 through the light incident surface 1121 and is reflected at the reflective surface 1122 of the triangular prism 112 . At this time, ambient light propagating in the Z-axis direction is reflected to propagate in the X-axis direction. Finally, the ambient light is transmitted out of the triangular prism 112 through the light emitting surface 1123 of the triangular prism 112 and out of the prism motor 111 through the second light-transmitting hole 1112 .

It can be understood that by arranging the triangular prism 112 inside the prism motor 111 , the triangular prism 112 is used to reflect the ambient light propagating in the Z-axis direction to propagating in the X-axis direction. In this way, the components of the camera module 100 that receive ambient light propagating along the X-axis direction can be arranged along the X-axis direction. Since the size of the electronic device 1 in the X-axis direction is relatively large, the arrangement of the components in the camera module 100 in the X-axis direction is more flexible and simpler. In this embodiment, the optical axis direction of the camera module 100 is the X axis direction. In other embodiments, the optical axis direction of the camera module 100 may also be the Y axis direction.

Please refer to FIG. 6 again, and in conjunction with FIG. 3 , the triangular prism 112 is rotatably connected to the prism motor 111 . In this embodiment, the triangular prism 112 can rotate on the XZ plane with the Y axis as the rotation axis. In addition, the triangular prism 112 can also be rotated in the XY plane with the Z axis as the rotation axis. It can be understood that the camera module 100 is prone to shake during the process of collecting ambient light, and at this time, the transmission path of the ambient light is prone to deflection, resulting in poor images captured by the camera module 100 . In this embodiment, when the transmission path of the ambient light is deflected, the prism motor 111 can drive the triangular prism 112 to rotate, so that the triangular prism 112 is used to adjust the transmission path of the ambient light and reduce or avoid the deflection of the transmission path of the ambient light. Thus, it is ensured that the camera module 100 has a better shooting effect. Therefore, the reflection component 11 can play an optical anti-shake effect.

In other embodiments, the triangular prism 112 can also be fixedly connected to the prism motor 111 or can be slidably connected to the prism motor 111 .

In this embodiment, the lens assembly 101 has various arrangement modes. Several ways of setting the lens assembly 101 will be described in detail below with reference to the related drawings.

The first embodiment: please refer to FIG. 7 , which is a partially exploded schematic view of an embodiment of the lens assembly 101 shown in FIG. 6 . The lens assembly 101 includes a housing 12 , a motor 14 , a lens 15 , a lens circuit board 16 , a hall sensor 171 , a detection magnet 172 and a self-locking assembly 50 .

The housing 12 includes an upper cover 121 and a bottom plate 122 . The upper cover 121 is mounted on the bottom plate 122 . The upper cover 121 and the bottom plate 122 form a substantially rectangular parallelepiped. It should be noted that, the symbols 122 at the top of FIG. 7 have clearly marked the corresponding structures at the bottom of FIG. 7 . The upper mark 122 in FIG. 7 mainly indicates that both the bottom plate 122 and the upper cover 121 belong to the casing 12 .

In addition, the upper cover 121 includes a right side panel 1212 , an upper side panel 1215 , and a front side panel 1213 and a rear side panel 1214 disposed opposite to each other. The right side plate 1212 is connected between the front side plate 1213 and the rear side plate 1214 . The upper side plate 1215 is connected between the front side plate 1213 and the rear side plate 1214 .

In addition, the right side plate 1212 is provided with a third light-transmitting hole 1211 . The third light-transmitting hole 1211 communicates the inside of the housing 12 to the outside of the housing 12 . The shape of the third light-transmitting hole 1211 is not limited to the rectangle shown in FIG. 6 and FIG. 7 . As shown in FIG. 3 , the third light-transmitting hole 1211 and the second light-transmitting hole 1112 are disposed opposite to each other. When the ambient light is transmitted to the outside of the reflection element 11 through the second light-transmitting hole 1112 , the ambient light is transmitted to the inside of the lens element 101 through the third light-transmitting hole 1211 .

Please refer to FIG. 8 , which is a partially exploded schematic view of the motor 14 shown in FIG. 7 . The motor 14 includes a base plate 13 , a guide rail 141 , a fixed bracket 142 , a first moving bracket 143 , a second moving bracket 144 , a first magnet 145 , a first coil 146 , a second magnet 147 and a second coil 148 . It can be understood that the first magnet 145 and the first coil 146 form a first driving member. The second magnet 147 and the second coil 148 form a second driving member. The first driving member is used to drive the first moving bracket 143 to move along the X-axis direction. The second driving member is used for driving the second moving bracket 144 to move along the X-axis direction. In other embodiments, the number of driving members is not limited to the two shown in this embodiment. The moving brackets are not limited to the two illustrated in this embodiment.

The substrate 13 has a plate-like structure. The substrate 13 is provided with a fourth light-transmitting hole 131 . The fourth light-transmitting holes 131 penetrate through two opposite surfaces of the substrate 13 . Referring to FIG. 6 , the substrate 13 is fixed to the side of the housing 12 away from the third light-transmitting hole 1211 . The substrate 13 and the housing 12 substantially enclose a rectangular parallelepiped. With reference to FIG. 3 , FIG. 3 also illustrates that the substrate 13 is fixed to the side of the housing 12 away from the third light-transmitting hole 1211 . The fourth light-transmitting hole 131 communicates the inside of the housing 12 to the outside of the housing 12 . In addition, the photosensitive chip 30 and the light filter 40 are both located in the fourth light transmission hole 131 , and the light filter 40 is fixed on the hole wall of the fourth light transmission hole 131 . In this way, when the ambient light propagates to the inside of the housing 12 through the third light-transmitting hole 1211 , the ambient light can propagate to the filter 40 and the photosensitive chip 30 in sequence through the fourth light-transmitting hole 131 .

Please refer to FIG. 8 again, the substrate 13 defines a plurality of first fixing holes 132 . The number of the first fixing holes 132 is not limited to the four shown in FIG. 8 . The plurality of first fixing holes 132 penetrate through two opposite surfaces of the substrate 13 . The plurality of first fixing holes 132 are located at the periphery of the fourth light-transmitting hole 131 .

In addition, the fixing bracket 142 defines a second fixing hole 1421 . The second fixing hole 1421 penetrates two opposite surfaces of the fixing bracket 142 . The number of the second fixing holes 1421 is the same as that of the first fixing holes 132 .

Please refer to FIG. 9 , which is a partially exploded schematic view of the motor 14 shown in FIG. 7 . The plurality of guide rails 141 are connected to the plurality of first fixing holes 132 in one-to-one correspondence. The plurality of guide rails 141 are connected to the plurality of second fixing holes 1421 in one-to-one correspondence. One end of the guide rail 141 is fixed in the first fixing hole 132 , and the other end is fixed in the second fixing hole 1421 . At this time, the base plate 13 and the fixing bracket 142 are disposed opposite to each other, and both the base plate 13 and the fixing bracket 142 are fixedly connected to the guide rail 141 .

In addition, the fixing bracket 142 also defines a first mounting hole 1422 . As shown in FIG. 7 , the lens 15 includes a second lens 152 . The second lens 152 is installed in the first installation hole 1422 . At this time, the second lens 152 is a fixed-focus lens.

Referring to FIG. 9 again, the first moving bracket 143 is located between the fixed bracket 142 and the base plate 13 . The first moving bracket 143 is movably connected to the guide rail 141 . Specifically, the first moving bracket 143 defines a plurality of first sliding holes 1433 . The number of the first sliding holes 1433 is the same as that of the guide rails 141 . The plurality of guide rails 141 pass through the plurality of first sliding holes 1433 in a one-to-one correspondence. The guide rail 141 can slide relative to the hole wall of the first sliding hole 1433 .

Referring to FIG. 8 , the first moving bracket 143 includes a first part 1431 and a second part 1432 connected to the first part 1431 . It should be noted that, the symbols 1432 at the top of FIG. 8 have clearly marked the corresponding structures at the bottom of FIG. 8 . The upper mark 1432 in FIG. 8 mainly indicates that both the second part 1432 and the first part 1431 belong to the first moving bracket 143 .

In addition, the first portion 1431 is provided with two first sliding holes 1433 . The first part 1431 and the second part 1432 together define two other first sliding holes 1433 . It can be understood that, by arranging the first moving bracket 143 into the first part 1431 and the second part 1432 , the assembly difficulty of the plurality of guide rails 141 and the first moving bracket 143 is reduced.

Referring to FIG. 8 again, the first portion 1431 is provided with a second mounting hole 1434 . The second mounting hole 1434 is disposed opposite to the first mounting hole 1422 . As described in conjunction with FIG. 7 , the lens 15 includes the first lens 151 . The number of the first lenses 151 is two. The first lens 151 is mounted in the second mounting hole 1434 . At this time, when the first moving bracket 143 slides relative to the guide rail 141 , the first lens 151 can also move relative to the guide rail 141 . In other embodiments, the number of the first lenses 151 mounted on the first moving bracket 143 may also be one, or more than two.

Please refer to FIG. 8 again, the first portion 1431 is provided with a first mounting groove 1435 . The first installation groove 1435 is used for fixing the first magnet 145 . Referring to FIG. 9 , the first magnet 145 substantially fills the first installation slot 1435 .

Referring again to FIG. 9 , the first coil 146 is located inside the housing 12 (please refer to FIG. 7 ). The first coil 146 is fixed to the surface of the front side plate 1213 (refer to FIG. 7 ) facing the first portion 1431 . The first coil 146 faces the first magnet 145 .

Please refer to FIG. 10 , which is a partially exploded schematic view of the motor 14 shown in FIG. 7 . The second moving bracket 144 is located between the base plate 13 and the fixed bracket 142 . The second moving bracket 144 is movably connected to the guide rail 141 . Specifically, the second moving bracket 144 defines a plurality of second sliding holes 1443 . The number of the second sliding holes 1443 is the same as that of the guide rails 141 . The plurality of guide rails 141 pass through the plurality of second sliding holes 1443 in a one-to-one correspondence. The guide rail 141 can slide relative to the hole wall of the second sliding hole 1443 . It can be understood that, the second moving bracket 144 may move simultaneously with the first moving bracket 143 , or may not move simultaneously with the first moving bracket 143 .

Referring to FIG. 8 , the second moving bracket 144 includes a third part 1441 and a fourth part 1442 connected to the third part 1441 . The third portion 1441 is provided with two second sliding holes 1443 . The third portion 1441 and the fourth portion 1442 together define two other second sliding holes 1443 . It can be understood that, by arranging the second moving bracket 144 into the third part 1441 and the fourth part 1442 , the assembly difficulty of the plurality of guide rails 141 and the second moving bracket 144 is reduced.

In addition, the third portion 1441 is provided with a third mounting hole 1444 . The third mounting hole 1444 is disposed opposite to the second mounting hole 1434 . With reference to FIG. 7 , two first lenses 151 are installed in the third installation holes 1444 . At this time, when the second moving bracket 144 slides relative to the guide rail 141 , the two first lenses 151 can also move relative to the guide rail 141 . In other embodiments, the number of the first lenses 151 fixed by the third mounting holes 1444 may also be one, or more than two.

Referring to FIG. 10 again, the third portion 1441 is provided with a second mounting groove 1445 . The second installation groove 1445 is used for fixing the second magnet 147 . Additionally, the second coil 148 is located inside the housing 12 (see FIG. 7). The second coil 148 is fixed to the surface of the rear side plate 1214 (refer to FIG. 7 ) facing the third portion 1441 . The second coil 148 faces the second magnet 147 .

Please refer to FIG. 11 . FIG. 11 is a partial structural diagram of the camera module 100 shown in FIG. 4 under the first embodiment. The lens circuit board 16 is located on one side of the motor 14 . In addition, the substrate 13 is provided with grooves 133 . A part of the lens circuit board 16 protrudes through the groove 133 and extends to be electrically connected with the module circuit board 20 . FIG. 3 illustrates that the lens circuit board 16 is fixed to the upper side plate 1215 of the housing 12 . The lens circuit board 16 is in contact with the module circuit board 20 .

The lens circuit board 16 may be a rigid circuit board, a flexible circuit board, or a flexible-rigid circuit board. In addition, the lens circuit board 16 may use an FR-4 dielectric board, a Rogers dielectric board, a mixed media board of Rogers and FR-4, or the like.

Please refer to FIG. 11 again, the first coil 146 is electrically connected to the lens circuit board 16 . At this time, the first coil 146 can be electrically connected to the module circuit board 20 through the lens circuit board 16 . In this way, when the module circuit board 20 transmits a current signal to the first coil 146 through the lens circuit board 16, the first coil 146 is energized, and the first magnet 145 can generate a negative direction along the X-axis or the X-axis under the action of the first coil 146. The ampere force in the positive direction of the axis. At this time, the first magnet 145 pushes the first moving bracket 143 to move along the negative X-axis direction or the positive X-axis direction under the ampere force. In this way, the first lens 151 fixed to the first moving bracket 143 can also move in the negative X-axis direction or the positive X-axis direction.

It can be understood that by changing the direction of the current signal on the first coil 146 or setting the position of the S pole or the N pole of the first magnet 145, when the first coil 146 is energized, the first magnet 145 can generate electricity along the X-axis. Ampere force in the negative or positive X-axis direction. At this time, the first magnet 145 can push the first moving bracket 143 to move along the negative X-axis direction or the positive X-axis direction under the ampere force.

Please refer to FIG. 11 again and in conjunction with FIG. 10 , the second coil 148 is electrically connected to the lens circuit board 16 . At this time, the second coil 148 can be electrically connected to the module circuit board 20 through the lens circuit board 16 . In this way, when the module circuit board 20 transmits a current signal to the second coil 148 through the lens circuit board 16, the second coil 148 is energized, and the second magnet 147 can generate ampere force along the negative direction of the X axis or the positive direction of the X axis. At this time, the second magnet 147 pushes the second moving bracket 144 to move along the negative X-axis direction or the positive X-axis direction under the ampere force. In this way, the first lens 151 fixed to the second moving bracket 144 can also move in the negative X-axis direction or the positive X-axis direction.

It can be understood that, by changing the direction of the current signal on the second coil 148, or setting the position of the S pole or the N pole of the second magnet 147, when the second coil 148 is energized, the second magnet 147 can generate electricity along the X axis. Ampere force in the negative or positive X-axis direction. At this time, the second magnet 147 can push the second moving bracket 144 to move along the negative X-axis direction or the positive X-axis direction under the ampere force.

In other embodiments, the lens assembly 101 may also not include the lens circuit board 16 . At this time, the first coil 146 and the second coil 148 may be electrically connected to the module circuit board 20 through wires, respectively.

Please refer to FIG. 12 . FIG. 12 is a partial structural schematic diagram of the camera module 100 shown in FIG. 4 under the first embodiment. The first portion 1431 of the first moving bracket 143 is provided with a sinker 1436 . The opening of the sink groove 1436 faces the lens circuit board 16 . The detection magnet 172 is disposed in the sink 1436 . In this way, in the Z-axis direction, the detection magnet 172 does not increase the thickness of the camera module 100 .

In addition, the Hall sensor 171 is fixed on the side of the lens circuit board 16 facing the first moving bracket 143 , and is electrically connected to the lens circuit board 16 . At this time, the Hall sensor 171 is electrically connected to the module circuit board 20 through the lens circuit board 16 . The Hall sensor 171 is used to detect the magnetic field strength when the detection magnet 172 is at different positions.

In addition, the second moving bracket 144 may also be provided with a sink. A detection magnet is arranged in the sink. The lens circuit board 16 is provided with a Hall sensor. The Hall sensor is used to detect the magnetic field strength of the detection magnet on the second moving bracket 144 .

It can be understood that when the user needs to focus the camera module 100 , the lens circuit board 16 transmits a current signal to the first coil 146 . The first magnet 145 pushes the first moving bracket 143 to move relative to the guide rail 141 along the positive X-axis direction or the negative X-axis direction under the ampere force. At this time, it is easy for the first moving bracket 143 not to move to the target position. In this embodiment, the Hall sensor 171 is used to measure the magnetic field strength at the position where the detection magnet 172 is located, and determine whether the magnetic field strength is equal to the preset magnetic field strength at the target position. When the magnetic field strength is not equal to the preset magnetic field strength at the target position, the Hall sensor 171 feeds back to the module circuit board 20 through the lens circuit board 16 . At this time, the module circuit board 20 can provide the compensation current signal to the first coil 146 , so that the first moving bracket 143 can be accurately moved to the target position. In this way, by arranging the Hall sensor 171 and the detection magnet 172, the moving accuracy of the first moving bracket 143 can be significantly improved, that is, the focusing accuracy of the camera module 100 can be significantly improved, thereby making the image captured by the camera module 100 more accurate. The effect is better.

It can be understood that the use principle of the Hall sensor and the detection magnet on the second moving bracket 144 is the same as that of the Hall sensor 171 and the detection magnet 172 on the first moving bracket 143 . I won't go into details here.

Please refer to FIG. 13 . FIG. 13 is a partial structural schematic diagram of the camera module 100 shown in FIG. 4 under the first embodiment. The self-locking component 50 is located inside the housing 12 (refer to FIG. 7 ), and the self-locking component 50 is disposed on the bottom plate 122 . In this embodiment, part of the self-locking assembly 50 is disposed close to the first moving bracket 143 . The self-locking assembly 50 is used to lock the first moving bracket 143 when the power is turned on. The power-on condition of the self-locking assembly 50 can be determined according to whether the first moving bracket 143 moves relatively. For example, when the first moving bracket 143 is not relatively moved, the self-locking assembly 50 is not powered on. When the first moving bracket 143 moves relatively, the self-locking assembly 50 is powered on. In addition, when the first moving bracket 143 is not relatively moved, the first moving bracket 143 is in the target position. The target position may be the focus position of the first moving bracket 143 , or may be a fixed position of the first moving bracket 143 when the camera module 100 does not start shooting.

In this embodiment, the self-locking assembly 50 locks the first movable bracket 143 by applying pressure along the Y-axis direction to the first movable bracket 143 . The structure and locking principle of the self-locking assembly 50 will be described in detail below with reference to the relevant drawings. I won't go into details here.

It can be understood that when the first moving bracket 143 moves to the target position relative to the guide rail 141 , the first moving bracket 143 is locked by the self-locking component 50 , so that the stability of the first lens 151 on the first moving bracket 143 is better. , that is, the first lens 151 on the first moving bracket 143 is not easily moved due to external shaking or vibration, so that when the user takes a photo, the captured image is not easily deformed or blurred. In particular, when the user takes a photo during exercise, the effect of the image captured by the camera module 100 is also better.

In addition, when the first moving bracket 143 moved to the target position is locked, the first moving bracket 143 can not only avoid collision with other components in the camera module 100 , thereby reducing the impact risk of the first moving bracket 143 , and can Avoid forced vibration. It can be understood that forced vibration refers to the vibration that occurs under the action of periodic external forces.

In other embodiments, part of the self-locking assembly 50 may also be disposed near the second moving bracket 144 . The self-locking assembly 50 can be used to lock the second moving bracket 144 when energized.

In other embodiments, there are two sets of self-locking assemblies 50 . One set is arranged near the first moving bracket 143 , and the other set is arranged near the second moving bracket 144 . At this time, the self-locking assembly 50 can be used not only to lock the first moving bracket 143 under the condition of electrification, but also to lock the second moving bracket 144 under the condition of electrification.

Please refer to FIG. 14 , which is a partially exploded schematic view of the self-locking assembly 50 shown in FIG. 13 . The self-locking assembly 50 includes a first circuit board 51 , a connector 52 , a self-locking member 53 and a force applying member 54 .

The first circuit board 51 may be a rigid circuit board, a flexible circuit board, or a flexible-rigid circuit board. In addition, the first circuit board 51 includes first pins 511 and second pins 512 arranged at intervals.

Please refer to FIG. 15 . FIG. 15 is a partial structural diagram of the camera module 100 shown in FIG. 13 . The first circuit board 51 is fixed to the bottom plate 122 . The first circuit board 51 is located on the periphery of the bottom plate 122 . Referring to FIG. 13 , a part of the first circuit board 51 is located between the substrate 13 and the second movable bracket 144 , that is, the first circuit board 51 and the second movable bracket 144 are arranged at intervals. At this time, the space between the substrate 13 and the second moving bracket 144 can be effectively utilized, thereby significantly improving the space utilization rate. In addition, the end of the base plate 13 close to the bottom plate 122 is provided with a communication hole 134 . The communication hole 134 communicates the side of the base plate 13 close to the second moving bracket 144 to the side of the base plate 13 far away from the second moving support 144 . Part of the first circuit board 51 passes through the substrate 13 through the communication hole 134 and is electrically connected to the module circuit board 20 . In this way, the signal can be transmitted to the first circuit board 51 via the module circuit board 20 .

Please refer to FIG. 14 again, the connector 52 includes a fixing base 521 , a connecting member 522 and a conductive sheet 523 .

The material of the fixing seat 521 may be an insulating material. For example, the material of the fixing base 521 is plastic. As shown in FIG. 15 , the fixing base 521 is fixed to the first circuit board 51 . In other embodiments, the fixing base 521 is partly fixed to the first circuit board 51 and partly fixed to the bottom plate 122 .

In addition, the material of the conductive sheet 523 is a conductive material. For example, the conductive sheet 523 is a steel sheet, an aluminum sheet or a copper sheet. The conductive sheet 523 is fixed to the fixing base 521 through the connecting member 522 .

Please refer to FIG. 14 again, the connecting member 522 is a conductive post. The fixing base 521 and the conductive sheet 523 are respectively provided with first through holes 524 . As shown in FIG. 15 , the connecting member 522 passes through the first through hole 524 on the fixing base 521 and the conductive sheet 523 in sequence, and is fixed in the first through hole 524 . In this way, the conductive sheet 523 is fixed to the fixing base 521 through the connecting member 522 . In other embodiments, the connector 522 may also be other fasteners, such as pins or screws.

In this embodiment, the material of the connecting member 522 is a conductive material. When one end of the connecting member 522 passes through the through hole 524 of the fixing base 521 , one end of the connecting member 522 is electrically connected to the first pin 511 of the first circuit board 51 .

In other embodiments, the connector 52 may also be a connector of other structures. The connector can be electrically connected to the first pins 511 of the first circuit board 51 . The specific embodiment is not limited.

Please refer to FIG. 16 , which is an exploded schematic view of the self-locking member 53 shown in FIG. 14 . The self-locking member 53 includes a base 531 , a rotating shaft 532 , a rotating member 533 , an elastic member 534 and a limiting block 535 . It can be understood that the elastic member 534 can be a spring or an elastic sheet. The elastic member 534 in this embodiment is described by taking a spring as an example.

The base 531 includes a fixing portion 5311 and a limiting portion 5312 . The limiting portion 5312 is connected to one side of the fixing portion 5311 and located at the periphery of the fixing portion 5311 . At this time, the base 531 is roughly in a "┘" shape. The fixing portion 5311 and the limiting portion 5312 can be integrally formed. FIG. 16 schematically distinguishes the fixing portion 5311 and the limiting portion 5312 by dotted lines.

In addition, the fixing portion 5311 defines a second through hole 5313 . The second through holes 5313 penetrate through opposite surfaces of the fixing portion 5311 . The second through holes 5313 are disposed opposite to the second pins 512 (refer to FIG. 14 ).

As shown in FIG. 15 , the base 531 and the connector 52 are arranged at intervals. Part of the fixing part 5311 is fixed to the bottom plate 122 , and part of the fixing part 5311 is fixed to the first circuit board 51 . In other embodiments, all the fixing parts 5311 may be fixed to the first circuit board 51. As shown in FIG. 13 , the base 531 and the first moving bracket 143 are arranged at intervals.

Please refer to FIG. 15 and FIG. 16 again, one end of the rotating shaft 532 passes through the second through hole 5313 of the fixing portion 5311 . The rotating shaft 532 is fixedly connected to the hole wall of the second through hole 5313 . That is, one end of the rotating shaft 532 is fixed to the base 531 . In addition, the material of the rotating shaft 532 is a conductive material. For example, copper, aluminum, silver, gold or aluminum alloy, etc. The shaft 532 passing through the second through hole 5313 of the fixing portion 5311 is electrically connected to the second pin 512 (please refer to FIG. 14 ).

Referring to FIG. 16 again, the rotating member 533 includes a middle portion 5331 , a first end portion 5332 and a second end portion 5333 . The first end portion 5332 and the second end portion 5333 are respectively connected to two ends of the middle portion 5331 . Both the first end portion 5332 and the second end portion 5333 are bent toward the same side of the middle portion 5331 .

In addition, the middle portion 5331 of the rotating member 533 is provided with two convex portions 5334 . The protruding directions of the two protruding portions 5334 are opposite to the bending directions of the first end portion 5332 and the second end portion 5333 . In other embodiments, the number of protrusions 5334 may also be one, or more than two. In addition, a third through hole 5335 is defined in each of the two protruding portions 5334 . The third through hole 5335 penetrates two opposite surfaces of the convex portion 5334 .

15 , the other end of the rotating shaft 532 passes through the third through holes 5335 on the two convex portions 5334 in sequence, and rotates relative to the hole walls of the third through holes 5335 . In this way, the rotating member 533 is rotatably connected to the fixing portion 5311 through the rotating shaft 532 .

In addition, the material of the rotating member 533 is a conductive material. For example, copper, aluminum, silver, gold or aluminum alloy, etc. The rotating member 533 is electrically connected to the rotating shaft 532 .

Referring to FIG. 15 again, one end of the elastic member 534 is fixed to the limiting portion 5312 of the base 531 , and the other end is fixed to the second end portion 5333 of the rotating member 533 . At this time, the elastic member 534 is located on the side of the rotating member 533 away from the connector 52 .

In addition, the limiting block 535 is fixed on the side of the second end portion 5333 of the rotating member 533 away from the elastic member 534 . At this time, the limiting block 535 is disposed opposite to the elastic member 534 . The material of the limiting block 414 may be a polymer material. For example, thermoplastic polyurethane elastomer (thermoplastic polyurethanes, TPU), thermoplastic elastomer (thermoplastic elastomer, TPE), thermoplastic rubber material (thermoplastic rubber material, TPR). In other embodiments, the material of the limiting block 414 may also be a metal material.

In this embodiment, the limiting block 535 is fixed to the second end 5333 of the rotating member 533 by tape or glue. In other embodiments, the limiting block 535 can also be integrally formed with the second end 5333 of the rotating member 533 .

Referring to FIG. 15 again, one end of the force applying member 54 is fixed to the conductive sheet 523 of the connector 52 , and the other end is fixed to the first end 5332 of the rotating member 533 . In this embodiment, hooks are provided on the conductive sheet 523 and the first end 5332 of the rotating member 533 . At this time, both ends of the force applying member 54 are respectively fixed on the hooks on the conductive sheet 523 and the first end portion 5332 . In this way, the connection between the force applying member 54 and the conductive sheet 523 and the rotating member 533 is more stable.

In addition, the force applying member 54 is a shape memory alloy (SMA). In this way, a current path is formed between the first circuit board 51 , the connecting member 522 , the conductive sheet 523 , the force applying member 54 , the rotating shaft 532 and the rotating member 533 . It can be understood that the current path refers to a loop through which current can be transmitted among the first circuit board 51 , the connecting member 522 , the conductive sheet 523 , the force applying member 54 , the rotating shaft 532 and the rotating member 533 .

It can be understood that the force-applying member 54 is used to exert a force on the rotating member 533 when the power is turned on. The power-on state of the force applying member 54 can be determined according to whether the first moving bracket 143 moves relatively. For example, when the first moving bracket 143 is not relatively moved, the force applying member 54 is not energized. When the first moving bracket 143 moves relatively, the force applying member 54 is energized. In addition, when the first moving bracket 143 is not relatively moved, the first moving bracket 143 is in the target position.

In addition, when the force applying member 54 is energized, the current signal acts on the force applying member 54, and the force applying member 54 contracts. At this time, the urging member 54 generates a contraction force. In this way, the force applying member 54 in the retracted state can exert a force on the first end portion 5332 of the rotating member 533 . The acting force is the contraction force generated when the force applying member 54 is energized. The direction of the force is the negative direction of the Y axis. In this way, when the pulling force on the first end 5332 is greater than the elastic force of the elastic member 534, the rotating member 533 rotates relative to the rotating shaft 532, the second end 5333 of the rotating member 533 compresses the elastic member 534, and the rotating member 533 drives the limiting block 535 to rotate relative to the rotating member 533. The shaft 532 rotates.

In this embodiment, the self-locking assembly 50 has two states. One is the locked state. One is the unlocked state. The two states will be described in detail below with reference to the relevant drawings.

Locked state: please refer to FIG. 17 and FIG. 18 . FIG. 17 is a schematic diagram of a state of the structure of the camera module 100 shown in FIG. 4 in the first embodiment. FIG. 18 is an enlarged schematic view of part of the camera module 100 shown in FIG. 17 at B. FIG. When the first moving bracket 143 moves to the target position, the module circuit board 20 does not transmit a current signal to the first circuit board 51 , the force applying member 54 is not energized, the force applying member 54 does not shrink, and the force applying member 54 does not rotate. The first end 5332 of the piece 533 exerts a pulling force. At this time, since the elastic member 534 is in a compressed state, the first end portion 5332 of the rotating member 533 abuts against the limiting portion 5312 of the base 531 under the elastic force of the elastic member 534 . In addition, the second end 5333 of the rotating member 533 drives the limit block 535 to rotate under the elastic force of the elastic member 534 , so that the limit block 535 contacts the first moving bracket 143 , and the limit block 535 contacts the first moving bracket 143 Static friction can be generated between them. It can be understood that the limiting block 535 exerts a pressure along the negative direction of the Y-axis on the first moving bracket 143 . At this time, when the first moving bracket 143 tends to move along the X-axis direction, a static friction force is generated between the limiting block 535 and the first moving bracket 143 . The static friction force can prevent the first moving bracket 143 from sliding along the X-axis direction. In this way, the first moving bracket 143 is locked by the self-locking assembly 50 .

In one embodiment, the locking state of the self-locking assembly 50 can be applied to a scene where the camera module 100 is focused, or the camera module 100 is in a scene where no images or videos are taken.

Unlocked state: please refer to FIG. 19, in conjunction with FIG. 17, FIG. 19 is a schematic diagram of the camera module 100 shown in FIG. 4 in another state of the structure of the first embodiment. When the first moving bracket 143 starts to move relative to the target position, the module circuit board 20 transmits a current signal to the first circuit board 51 . A loop is formed between the rotating members 533 . When the force applying member 54 is energized, the force applying member 54 contracts. The force-applying member 54 generates a contraction force. In this way, the force-applying member 54 in the retracted state can exert a pulling force on the first end portion 5332 of the rotating member 533 , wherein the direction of the pulling force is the negative direction of the Y-axis. When the tensile force on the first end portion 5332 is greater than the elastic force of the elastic member 534 , the second end portion 5333 of the rotating member 533 compresses the elastic member 534 , and the rotating member 533 rotates relative to the rotating shaft 532 . In this way, the first end portion 5332 of the rotating member 533 is separated from the limiting portion 5312 of the base 531 . In addition, the rotating member 533 drives the limiting block 535 to rotate, so that the limiting block 535 is separated from the first moving bracket 143 . The first moving bracket 143 is in an unlocked state.

In one scenario, the unlocked state of the self-locking assembly 50 can be applied to a scenario in which the camera module 100 starts focusing.

The self-locking assembly 50 of the first embodiment of the present embodiment is described in detail above. Several setting effects of the self-locking assembly 50 of this embodiment will be described below with reference to the above figures.

In this embodiment, the direction of the force applied by the force applying member 54 to the rotating member 533 is the same as the direction of the pressure applied by the limiting block 535 to the first moving bracket 143 . At this time, the force applying member 54 and the first moving bracket 143 are located on the same side of the rotating member 533 . The extending direction of the force applying member 54 can have an overlapping area with the extending direction of the first moving bracket 143 in the Y-axis. In this way, when the length of the force applying member 54 is greatly increased, the force applying member 54 will not increase the length of the lens assembly 101 in the Y-axis direction. In addition, when the length of the force-applying member 54 is greatly increased, the retracted length of the force-applying member 54 under power-on is also relatively large. The distance between 535 and the first moving bracket 143 is also larger. In this way, when the first moving bracket 143 moves along the X-axis direction, it is not easy to interfere with the limiting block 535 .

In other embodiments, the direction of the force applied by the force applying member 54 to the rotating member 533 and the direction of the pressure applied by the limiting block 535 to the first moving bracket 143 may also be different.

In this embodiment, the connection position of the limiting block 535 and the rotating member 533 is the first position. The first position in this embodiment is located at the second end 5333 of the rotating member 533 . The connection position of the force applying member 54 and the rotating member 533 (that is, the force applying position of the force applying member 54 to the rotating member 533 ) is the second position. The second position in this embodiment is located at the first end 5332 of the rotating member 533 . The rotational position of the rotating member 533 is between the first position and the second position. At this time, the limit block 535 and the force applying member 54 are located on both sides of the rotating shaft 532, and the limit block 535 and the force applying member 54 are not easy to interfere with each other during movement, so as to ensure the reliability of the self-locking assembly 50.

In other embodiments, the first position and the second position may also be located on the same side of the rotating member 533 . For example, the first end 5332 of the rotating member 533 is rotatably connected to the base 531 through the rotating shaft 532 . The force applying member 54 applies force to the middle portion 5331 of the rotating member 533 . The limiting block 535 is still fixed to the second end 5333 of the rotating member 533 .

In this embodiment, the elastic member 534 is located on the side of the rotating member 533 away from the limiting block 535 . At this time, the elastic member 534 is disposed away from the first moving bracket 143 . At this time, when the first moving bracket 143 moves along the X-axis direction, the elastic member 534 is not likely to interfere with the first moving bracket 143 , thereby ensuring the reliability of the self-locking assembly 50 .

In addition, the elastic member 534 is disposed opposite to the limiting block 535 . At this time, the elastic member 534 is disposed away from the force-applying member 54 . At this time, when the force applying member 54 exerts a pulling force on the rotating member 533 , the elastic member 534 is not likely to interfere with the force applying member 54 , thereby ensuring the reliability of the self-locking assembly 50 .

In other embodiments, the elastic member 534 is located on the side of the rotating member 533 close to the first moving bracket 143 .

In other embodiments, the elastic member 534 and the force applying member 54 may also be located on the same side of the rotational position of the rotating member 533 .

In this embodiment, the rotating shaft 532 can not only be used to rotate the rotating member 533 relative to the base 531, but also can be used as a part of the current path. The rotating shaft 532 has the effect of "multi-purpose for one thing". In addition, the rotating member 533 can not only be used to drive the limiting block 535 to rotate, but also can be used as a part of the current path. The rotating member 533 also has the effect of "multi-purpose".

In this embodiment, the distance between the first position and the rotational position of the rotating member 533 is the first distance. The distance between the second position and the rotating position of the rotating member 533 is the second distance. The first distance is greater than the second distance. At this time, when the force applying member 54 is energized, the angle by which the force applying member 54 pulls the rotating member 533 to rotate is relatively large, and the distance between the limiting block 535 and the first moving bracket 143 is relatively large. In this way, when the first moving bracket 143 moves along the X-axis direction, it is not easy to interfere with the limiting block 535 .

The structure of a camera module 100 is described in detail above. Hereinafter, a photographing method of the camera module 100 will be introduced in conjunction with the structure of the camera module 100 (please refer to FIG. 1 to FIG. 19 ).

Please refer to FIG. 20. FIG. 20 is a schematic flowchart of a photographing method of the camera module 100 shown in FIG. 1 in the first embodiment. The shooting method of the camera module 100 includes:

The S100 receives the shooting signal. It can be understood that the shooting signal may be a signal generated by the screen 10 when the user presses the screen 10 . In addition, the shooting signal may also be a signal formed by the touch signal generated by the screen 10 when the user presses the screen 10 and sent to the host circuit board 90 , where the chip on the host circuit board 90 processes the touch signal. .

In this embodiment, the module circuit board 20 may be used to receive a shooting signal.

S200 controls the force applying member 54 to be energized, so that the force applying member 54 exerts a force on the rotating member 533 to drive the rotating member 533 to overcome the elastic force of the elastic member 534 , drive the limiting block 535 to rotate, and leave the first moving bracket 143 . It can be understood that this embodiment is described by taking the self-locking assembly 50 for locking the first moving bracket 143 as an example. In other embodiments, the self-locking assembly 50 can also be used for locking the second moving support 144 . In addition, when there are two sets of self-locking components 50 , one set of self-locking components 50 is used to lock the first moving bracket 143 , and the other set is used to lock the second moving bracket 144 .

Specifically, the force applying member 54 in this embodiment is an SMA. After the module circuit board 20 receives the shooting signal, the module circuit board 20 controls the force applying member 54 to energize. At this time, the current signal acts on the force applying member 54, and the force applying member 54 contracts. The force-applying member 54 generates a contraction force. In this way, the force-applying member 54 in the retracted state can exert a pulling force on the first end portion 5332 of the rotating member 533 . When the tensile force on the first end 5332 is greater than the elastic force of the elastic member 534 , the rotating member 533 overcomes the elastic force of the elastic member 534 , the second end 5333 of the rotating member 533 compresses the elastic member 534 , and the rotating member 533 rotates relative to the rotating shaft 532 . In this way, the limiting block 535 also rotates relative to the rotating shaft 532 . The limiting block 535 is separated from the first moving bracket 143 .

S300 controls the first moving bracket 143 to drive the first lens 151 to move along the optical axis direction of the optical lens 10 .

It can be understood that, since the optical axis direction of the optical lens 10 is the X axis direction, the first moving bracket 143 can drive the first lens 151 to move along the X axis positive direction or the X axis negative direction. The moving distance of the first lens 151 can be set according to the user's focusing requirement.

In this embodiment, when the module circuit board 20 transmits a current signal to the first coil 146 through the lens circuit board 16, the first coil 146 is energized, and the first magnet 145 can generate a negative force along the X-axis under the action of the first coil 146. direction of ampere force. At this time, the first magnet 145 pushes the first moving bracket 143 to move in the negative direction of the X-axis under the ampere force. In this way, the first lens 151 fixed to the first moving bracket 143 can also move in the negative direction of the X-axis.

S400 When the first moving bracket 143 moves to the target position, the force applying member 54 is controlled to be powered off, and the rotating member 533 drives the limit block 535 to rotate under the elastic force of the elastic member 534, so that the limit block 535 presses the first moving bracket 143.

Specifically, when the first moving bracket 143 moves to the target position, the module circuit board 20 controls the force applying member 54 to be powered off. When the current signal does not act on the force applying member 54 , the force applying member 54 does not shrink, and the force applying member 54 does not exert a pulling force on the first end 5332 of the rotating member 533 . At this time, since the elastic member 534 is in a compressed state, the second end portion 5333 of the rotating member 533 drives the limiting block 535 to rotate under the elastic force of the elastic member 534, so that the limiting block 535 contacts the first moving bracket 143, limiting the Static frictional force is generated between the position block 535 and the first moving bracket 143 . In this way, the limiting block 535 can press the first moving bracket 143 .

S500 controls the photosensitive chip 30 to convert optical signals into electrical signals and output them.

Specifically, the module circuit board 20 controls the photosensitive chip 30 to collect ambient light passing through the optical lens 10 . The collected ambient light is converted into electrical signals, and the electrical signals are output to the host circuit board 90 .

In this embodiment, the first moving bracket 143 is locked by the self-locking component 50, so that the stability of the first lens 151 on the first moving bracket 143 is better, that is, the first lens 151 on the first moving bracket 143 is better The lens 151 is not easily moved due to external shaking or vibration, so that when the user is taking a photo, the captured image is not easily deformed or blurred. In particular, when the user takes a photo during exercise, the effect of the image captured by the camera module 100 is also better.

In one embodiment, after "controlling the first moving bracket 143 to drive the first lens 151 to move along the optical axis of the optical lens 10", the method further includes:

The Hall sensor 171 detects the magnetic field strength of the detection magnet 172 .

When it is confirmed that the magnetic field strength is not equal to the preset magnetic field strength, the first moving bracket 143 is controlled to drive the first lens 151 to move to the target position along the optical axis direction of the optical lens 10 .

It can be understood that when the user needs to focus the camera module 100 , the lens circuit board 16 transmits a current signal to the first coil 146 . The first magnet 145 pushes the first moving bracket 143 to move relative to the guide rail 141 along the positive X-axis direction or the negative X-axis direction under the ampere force. At this time, it is easy for the first moving bracket 143 not to move to the target position. In this embodiment, the Hall sensor 171 is used to detect the magnetic field strength of the detection magnet 172, and it is determined whether the magnetic field strength is equal to the preset magnetic field strength at the target position. When the magnetic field strength is not equal to the preset magnetic field strength at the target position, the Hall sensor 171 feeds back to the module circuit board 20 through the lens circuit board 16 . At this time, the module circuit board 20 can provide the compensation current signal to the first coil 146 , so that the first moving bracket 143 is moved to the target position. In this way, the focusing accuracy of the camera module 100 can be improved by the Hall sensor 171 and the detection magnet 172 , so that the effect of the image captured by the camera module 100 is better.

A lens assembly 101 is introduced in detail above. Hereinafter, another setting manner of the lens assembly 101 will be described in detail with reference to the related drawings.

In the second embodiment, the same technical content as the first embodiment will not be repeated: please refer to FIG. 21 , which is a partially exploded schematic view of another embodiment of the lens assembly 101 shown in FIG. 6 . The lens assembly 101 includes a housing 12 , a motor 14 , a lens 15 , a lens circuit board 16 , a hall sensor 171 , a detection magnet 172 and a self-locking assembly 50 . The arrangement of the housing 12 , the motor 14 , the lens 15 , the lens circuit board 16 , the Hall sensor 171 , and the detection magnet 172 may refer to the housing 12 , the motor 14 , the lens 15 , the lens circuit board 16 , the Hall sensor 172 in the first embodiment. The arrangement of the sensor 171 and the detection magnet 172. I won't go into details here.

Please refer to FIG. 22 . FIG. 22 is a partial structural diagram of the camera module 100 shown in FIG. 4 in the second embodiment. The self-locking assembly 50 is disposed close to the first moving bracket 143 , and a part of the self-locking assembly 50 is located between the first moving bracket 143 and the bottom plate 122 . The self-locking assembly 50 is used to lock the first moving bracket 143 when the power is turned on. In this embodiment, the self-locking assembly 50 locks the first movable bracket 143 by applying pressure along the Z-axis direction to the first movable bracket 143 . Compared with the self-locking assembly 50 of the first embodiment pressing the first moving bracket 143 along the Y-axis direction, the self-locking assembly 50 of this embodiment can effectively utilize the space between the first moving bracket 143 and the bottom plate 122 , The space utilization of the lens assembly 101 is improved.

Please refer to FIG. 23 , which is a partially exploded schematic view of the self-locking assembly 50 shown in FIG. 22 . The self-locking assembly 50 includes a first circuit board 51 , a self-locking member 53 and a force applying member 54 .

The arrangement of the first circuit board 51 may refer to the arrangement of the first circuit board 51 in the first embodiment. I won't go into details here. Different from the first circuit board 51 of the first embodiment, the size of the first circuit board 51 of the present embodiment in the Y-axis direction is short. The first pins 511 and the second pins 512 of the first circuit board 51 may be disposed close to each other. Of course, in other embodiments, the first pin 511 and the second pin 512 may also be provided separately.

Please refer to FIG. 24 , which is an exploded schematic view of the self-locking member 53 shown in FIG. 23 . The self-locking member 53 includes a base 531 , a rotating shaft 532 , a rotating member 533 , an elastic member 534 and a limiting block 535 .

The base 531 includes a first fixing portion 5311 , a connecting portion 5312 and a second fixing portion 5313 . The connecting portion 5312 is located on one side of the first fixing portion 5311 and connected to the periphery of the first fixing portion 5311 . The second fixing portion 5313 is connected to the side of the connecting portion 5312 away from the first fixing portion 5311 . The second fixing portion 5313 is disposed opposite to the first fixing portion 5311 . At this time, part of the connecting portion 5312 is connected between the first fixing portion 5311 and the second fixing portion 5313 . In this embodiment, the first fixing portion 5311 , the connecting portion 5312 and the second fixing portion 5313 are integrally formed. FIG. 24 schematically distinguishes the first fixing part 5311 , the connecting part 5312 and the second fixing part 5313 by dotted lines.

As shown in FIG. 22 , the first fixing portion 5311 is fixed to the bottom plate 122 . At this time, the base 531 is fixed to the bottom plate 122 . The base 531 is spaced apart from the first moving bracket 143 . In other embodiments, some of the first fixing parts 5311 are fixed to the first circuit board 51 , and some of the first fixing parts 5311 are fixed to the bottom plate 122 .

Please refer to 24 again, the connecting portion 5312 defines a first through hole 5314 . The first through holes 5314 penetrate through opposite surfaces of the connecting portion 5312 .

In addition, the rotating shaft 532 includes a main shaft 5321 and a collar 5322 . The radius of the collar 5322 is larger than the radius of the main shaft 5321 . With reference to FIG. 23 , one end of the main shaft 5321 passes through the first through hole 5314 of the connecting portion 5312 . The main shaft 5321 is fixedly connected to the hole wall of the first through hole 5314 . In addition, the collar 5322 is sleeved on the main shaft 5321 . The collar 5322 is rotatably connected to the main shaft 5321 .

Please refer to FIG. 24 again, the rotating member 533 includes a middle portion 5331 , a first end portion 5332 and a second end portion 5333 . The first end portion 5332 and the second end portion 5333 are respectively connected to two ends of the middle portion 5331 . In this embodiment, the middle portion 5331 of the rotating member 533 is arc-shaped. The shape of the middle portion 5331 of the rotating member 533 is adapted to the shape of the outer surface of the collar 5322 . In other embodiments, the middle portion 5331 of the rotating member 533 may also have other shapes.

As shown in FIG. 23 , the middle portion 5331 of the rotating member 533 is fixed to the collar 5322 . At this time, the middle portion 5331 of the rotating member 533 can rotate as the collar 5322 rotates relative to the main shaft 5321 . At this time, the rotating member 533 is rotatably connected to the base 531 through the rotating shaft 532 . In addition, the first end 5332 and the second end 5333 of the rotating member 533 are located on both sides of the collar 5322 . The first end portion 5332 of the rotating member 533 is located on the side of the second fixing portion 5313 away from the first fixing portion 5311 .

In addition, the material of the rotating member 533 is a magnetic material. For example, the rotating member 533 is a magnet or a magnetic steel.

Please refer to FIGS. 23 and 24 again, one end of the elastic member 534 is fixed to the first fixing portion 5311 of the base 531 , and the other end is fixed to the second end portion 5333 of the rotating member 533 . It can be understood that the elastic member 534 can be a spring or an elastic sheet. The elastic member 534 in this embodiment is a spring as an example.

In addition, the limiting block 535 is fixed to a side of the first end portion 5332 of the rotating member 533 away from the second fixing portion 5313 . The limiting block 535 is located between the rotating member 533 and the first moving bracket 143 (please refer to FIG. 22 ). For the material of the limiting block 535, reference may be made to the material of the limiting block 535 in the first embodiment. I won't go into details here.

Please refer to FIG. 25 in conjunction with FIG. 23 . FIG. 25 is a partially exploded schematic view of the self-locking assembly 50 shown in FIG. 22 . The force applying member 54 includes a magnetic member 541 and a coil 542 wound on the surface of the magnetic member 541 . In addition, both the first fixing portion 5311 and the second fixing portion 5313 of the base 531 are provided with a second through hole 5315 .

One end of the magnetic member 541 passes through the second through hole 5315 of the first fixing portion 5311 and is fixedly connected to the hole wall of the second through hole 5315 . The other end of the magnetic member 541 passes through the second through hole 5315 of the second fixing portion 5313 and faces the first end portion 5332 of the rotating member 533 . In this way, the connection stability between the magnetic member 541 and the base 531 is better.

In addition, the coil 542 is located between the first fixing portion 5311 and the second fixing portion 5313 . The input end of the coil 542 is electrically connected to the first pin 511 of the first circuit board 51 . The output end of the coil 542 is electrically connected to the second pin 512 of the first circuit board 51 . At this time, the first circuit board 51 and the coil 542 form a current path.

It can be understood that the force applying member 54 is used for applying force to the rotating member 533 when the coil 542 is energized. The energization condition of the coil 542 can be determined according to whether the first moving bracket 143 moves relatively. For example, when the first moving bracket 143 is not relatively moved, the coil 542 is not energized. When the first moving bracket 143 relatively moves, the coil 542 is energized. In addition, when the first moving bracket 143 is not relatively moved, the first moving bracket 143 is in the target position.

Specifically, when the coil 542 is energized, the current signal acts on the coil 542, and the coil 542 generates a magnetic field. At this time, since the material of the rotating member 533 is a magnetic material, a magnetic attraction force is generated between the force applying member 54 and the first end 5332 of the rotating member 533 . The force applying member 54 is used for applying force to the rotating member 533 when the power is turned on. The acting force is the magnetic attraction force between the force applying member 54 and the rotating member 533 . When the magnetic attraction force between the force applying member 54 and the first end portion 5332 of the rotating member 533 is greater than the elastic force of the elastic member 534, the second end portion 5333 of the rotating member 533 stretches the elastic member 534, and the middle portion 5331 of the rotating member 533 follows the elastic force of the elastic member 534. The collar 5322 rotates relative to the main shaft 5321. In this way, the limiting block 535 fixed to the first end 5332 of the rotating member 533 also rotates relative to the main shaft 5321 along with the collar 5322 .

Locked state: Please refer to FIG. 26 and FIG. 27 . FIG. 26 is a schematic diagram of a state of the structure of the camera module 100 shown in FIG. 4 in the second embodiment. FIG. 27 is an enlarged schematic view of part of the camera module 100 shown in FIG. 26 at C. FIG. When the first moving bracket 143 moves to the target position, the module circuit board 20 does not transmit a current signal to the first circuit board 51 and the coil 542 is not energized. In addition, since the elastic member 534 is in a stretched state, the elastic member 534 applies an elastic force along the negative direction of the Z-axis to the second end portion 5333 of the rotating member 533 . At this time, the limiting block 535 is in contact with the first moving bracket 143 under the elastic force of the elastic member 534 , and a static friction force is generated between the limiting block 535 and the first moving bracket 143 . It can be understood that the limiting block 535 exerts a pressure along the positive direction of the Z-axis on the first moving bracket 143 . At this time, when the first moving bracket 143 tends to move along the X-axis direction, a static friction force is generated between the limiting block 535 and the first moving bracket 143 . The static friction force can prevent the first moving bracket 143 from sliding along the X-axis direction. In this way, the first moving bracket 143 is locked by the self-locking assembly 50 .

Unlocked state: please refer to FIG. 28, in conjunction with FIG. 26, FIG. 28 is a schematic diagram of another state of the structure of the camera module 100 shown in FIG. 4 under the second embodiment. When the first moving bracket 143 starts to move relative to the target position, the module circuit board 20 transmits a current signal to the first circuit board 51 , the coil 542 is energized, and the coil 542 generates a magnetic field. At this time, since the material of the rotating member 533 is a magnetic material, a magnetic attraction force is generated between the force applying member 54 and the first end 5332 of the rotating member 533 . At this time, the first end portion 5332 of the rotating member 533 is subjected to a pulling force along the negative direction of the Z-axis. In addition, since the elastic member 534 is in a stretched state, the elastic member 534 exerts a pulling force along the negative direction of the Z axis on the second end portion 5333 of the rotating member 533 . At this time, the first end portion 5332 of the rotating member 533 receives an elastic force along the positive direction of the Z-axis. It can be understood that when the magnetic attraction force between the force applying member 54 and the first end 5332 of the rotating member 533 is greater than the elastic force of the elastic member 534, the second end 5333 of the rotating member 533 stretches the elastic member 534, and the rotating member The middle portion 5331 of 533 rotates as the collar 5322 rotates relative to the main shaft 5321 . At this time, the first end 5332 of the rotating member 533 is rotated to contact the magnetic member 541 . The rotating member 533 drives the limiting block 535 to rotate, so that the limiting block 535 is separated from the first moving bracket 143 . The first moving bracket 143 is in an unlocked state.

The self-locking assembly 50 of the second embodiment of the present embodiment is described in detail above. Several setting effects of the self-locking assembly 50 of this embodiment will be described below with reference to the above figures.

In this embodiment, the direction of the force applied by the force applying member 54 to the rotating member 533 is opposite to the direction of the pressure applied by the limiting block 535 to the first moving bracket 143 . At this time, the force applying member 54 and the first moving bracket 143 are located on different sides of the rotating member 533 . When the first moving bracket 143 moves along the X-axis direction, the first moving bracket 143 is less likely to interfere with the force applying member 54 . In addition, the magnetic field generated by the force-applying member 54 cannot easily affect the movement of the first moving bracket 143 along the X-axis direction.

In other embodiments, the direction of the force applied by the force applying member 54 to the rotating member 533 is the same as the direction of the pressure applied by the limiting block 535 to the first moving bracket 143 .

In this embodiment, the connection position of the limiting block 535 and the rotating member 533 is the first position. The first position in this embodiment is located at the first end portion 5332 of the rotating member 533 . The connection position of the force applying member 54 and the rotating member 533 (that is, the force applying position of the force applying member 54 to the rotating member 533 ) is the second position. The second position of this embodiment is also located at the first end 5332 of the rotating member 533 . Both the first position and the second position are located on the same side of the rotating position of the rotating member 533 . At this time, the structure of the self-locking assembly 50 is relatively compact. The force-applying distance of the force-applying member 54 to the limiting block 535 is relatively short.

In other embodiments, the first position and the second position may also be located on different sides of the rotating member 533 . For example, the first position is at the first end 5332 of the rotating member 533 . The second position is located at the second end 5333 of the rotating member 533 .

In this embodiment, the elastic member 534 and the force applying member 54 are located on the same side of the rotating member 533 . At this time, when the first moving bracket 143 is moving, the elastic member 534 is not likely to collide with or interfere with each other with the first moving bracket 143 .

In addition, the elastic member 534 and the force-applying member 54 are located on both sides of the rotating position of the rotating member 533 . At this time, when the urging member 54 urges the rotating member 533 , the elastic member 534 and the urging member 54 cannot easily interfere with each other.

In other embodiments, the elastic member 534 and the force applying member 54 may also be located on the same side of the rotation position of the rotating member 533 .

The structure of a camera module 100 is described in detail above. Hereinafter, a photographing method of the camera module 100 will be introduced in conjunction with the structure of the camera module 100 (please refer to FIG. 21 to FIG. 28 ).

The shooting method of the camera module 100 includes;

Receive the shooting signal. It can be understood that the shooting signal may be a signal generated by the screen 10 when the user presses the screen 10 . In addition, the shooting signal may also be a signal formed by the touch signal generated by the screen 10 when the user presses the screen 10 and sent to the host circuit board 90 , where the chip on the host circuit board 90 processes the touch signal. .

The force applying member 54 is controlled to be energized, so that the force applying member 54 exerts a force on the rotating member 533 to drive the rotating member 533 to overcome the elastic force of the elastic member 534 , drive the limiting block 535 to rotate, and leave the first moving bracket 143 . It can be understood that this embodiment is described by taking the self-locking assembly 50 for locking the first moving bracket 143 as an example. In other embodiments, the self-locking assembly 50 can also be used for locking the second moving support 144 . In addition, when there are two sets of self-locking components 50 , one set of self-locking components 50 is used to lock the first moving bracket 143 , and the other set is used to lock the second moving bracket 144 .

Specifically, the force applying member 54 includes a magnetic member 541 and a coil 542 wound on the surface of the magnetic member 541 . After the module circuit board 20 receives the shooting signal, the module circuit board 20 controls the coil 542 to energize. At this time, the coil 542 generates a magnetic field. Since the material of the rotating member 533 is a magnetic material, a magnetic attraction force is generated between the force applying member 54 and the first end 5332 of the rotating member 533 . At this time, the first end portion 5332 of the rotating member 533 is subjected to a pulling force along the negative direction of the Z-axis. In addition, since the elastic member 534 is in a stretched state, the elastic member 534 exerts a pulling force along the negative direction of the Z axis on the second end portion 5333 of the rotating member 533 . At this time, the first end portion 5332 of the rotating member 533 receives an elastic force along the positive direction of the Z-axis. It can be understood that when the magnetic attraction force between the force applying member 54 and the first end 5332 of the rotating member 533 is greater than the elastic force of the elastic member 534, the rotating member 533 overcomes the elastic force of the elastic member 534, and the second end of the rotating member 533 overcomes the elastic force of the elastic member 534. The portion 5333 stretches the elastic member 534, and the middle portion 5331 of the rotating member 533 rotates as the collar 5322 rotates relative to the main shaft 5321. At this time, the first end 5332 of the rotating member 533 is rotated to contact the magnetic member 541 . In this way, the rotating member 533 drives the limiting block 535 to rotate, so that the limiting block 535 is separated from the first moving bracket 143 .

The first moving bracket 143 is controlled to drive the first lens 151 to move along the direction of the optical axis of the optical lens 10 .

When the first moving bracket 143 moves to the target position, the control force application member 54 is powered off, and the rotating member 533 drives the limit block 535 to rotate under the elastic force of the elastic member 534, so that the limit block 535 presses the first moving bracket 143 .

Specifically, when the first moving bracket 143 moves to the target position, the module circuit board 20 controls the coil 542 to power off. At this time, the coil 542 is not energized. Coil 542 produces no magnetic field. In addition, since the elastic member 534 is in a stretched state, the elastic member 534 applies an elastic force along the negative direction of the Z-axis to the second end portion 5333 of the rotating member 533 . At this time, the limiting block 535 is in contact with the first moving bracket 143 under the elastic force of the elastic member 534 , and a static friction force is generated between the limiting block 535 and the first moving bracket 143 . In this way, the limiting block 535 can press the first moving bracket 143 .

The photosensitive chip 30 is controlled to convert the optical signal into an electrical signal and output it.

In other embodiments, the second moving bracket 144 may also be provided with a self-locking assembly 50 . At this time, the self-locking assembly 50 can also perform the above steps on the second moving bracket 144 . The details are not repeated here.

In one embodiment, after "controlling the first moving bracket 143 to drive the first lens 151 to move in the direction of the optical axis of the optical lens 10", the method further includes:

When it is confirmed that the magnetic field strength is not equal to the preset magnetic field strength, the first moving bracket 143 is controlled to drive the first lens 151 to move to the target position along the optical axis direction of the optical lens.

It can be understood that the focusing accuracy of the camera module 100 can be improved by the Hall sensor 171 and the detection magnet 172 , so that the effect of the image captured by the camera module 100 is better.

The above has specifically introduced two ways of setting the lens assembly 101 . Hereinafter, another setting manner of the lens assembly 101 will be described in detail with reference to the related drawings.

In the third embodiment, the same technical content as the first embodiment and the second embodiment will not be repeated. Please refer to FIG. 29 , which is another embodiment of the lens assembly 101 shown in FIG. 6 . Partially exploded schematic diagram of . The lens assembly 101 includes a housing 12 , a motor 14 , a lens 15 , a lens circuit board 16 , a hall sensor 171 , a detection magnet 172 and a self-locking assembly 50 . The arrangement of the housing 12 , the motor 14 , the lens 15 , the lens circuit board 16 , the Hall sensor 171 , and the detection magnet 172 may refer to the housing 12 , the motor 14 , the lens 15 , the lens circuit board 16 , the Hall sensor 172 in the first embodiment. The arrangement of the sensor 171 and the detection magnet 172. I won't go into details here.

Please refer to FIG. 30 . FIG. 30 is a schematic diagram of a state of the structure of the camera module 100 shown in FIG. 4 in the third embodiment. The self-locking assembly 50 is disposed adjacent to the second moving bracket 144 . The self-locking assembly 50 is used to lock the second moving bracket 144 when the power is turned on. The power-on condition of the self-locking assembly 50 can be determined according to whether the second moving bracket 144 moves relatively. For example, when the second moving bracket 144 is not relatively moved, the self-locking assembly 50 is not powered. When the second moving bracket 144 moves relatively, the self-locking assembly 50 is powered on. In addition, when the second moving bracket 144 is not relatively moved, the second moving bracket 144 is in a fixed position. The fixed position is a position of the second moving bracket 144 when the camera module 100 does not start shooting.

In the present embodiment, the self-locking assembly 50 is used to lock the fourth part 1442 of the second moving bracket 144 under the condition of electrification. It can be understood that, compared with the self-locking assembly 50 of the first embodiment and the second embodiment, the self-locking assembly 50 of this embodiment locks the second moving bracket 144 in a fixed position. The location can be flexibly set according to needs.

In other embodiments, the self-locking assembly 50 can also be used to lock the third portion 1441 of the second moving bracket 144 when powered on.

In other embodiments, part of the self-locking assembly 50 may also be disposed near the first moving bracket 143 . The self-locking assembly 50 can be used to lock the first moving bracket 143 when the power is turned on.

Please refer to FIG. 31 , which is a partially exploded schematic view of the self-locking assembly 50 shown in FIG. 30 . The self-locking assembly 50 includes a first circuit board 51 , a first fastener 52 and a second fastener 53 .

The arrangement of the first circuit board 51 may refer to the arrangement of the first circuit board 51 in the second embodiment. I won't go into details here. The first circuit board 51 includes a first lead 511 and a second lead 512 .

Wherein, the first fastener 52 is a plate-like structure. The first fastener 52 defines a first through hole 521 . The first through hole 521 penetrates through two opposite surfaces of the first clip 52 . Referring to FIG. 30 , part of the first fastener 52 is fixed to the fourth part 1442 of the second moving bracket 144 , and part of the first fastener 52 protrudes toward the substrate 13 . In this embodiment, the first snap member 52 can be fixed to the fourth portion 1442 of the second moving bracket 144 by glue or adhesive tape. In other embodiments, the first snap member 52 may also be integrally formed with the fourth portion 1442 of the second moving bracket 144 .

Please refer to FIG. 32 . FIG. 32 is a partially exploded schematic view of the second fastener 53 shown in FIG. 30 . The second latching member 53 includes a base 531 , a force applying member 532 , an elastic member 533 , a sliding block 534 and a limiting block 535 . It can be understood that the elastic member 533 may be a spring or an elastic sheet. The elastic member 533 in this embodiment is a spring as an example.

The base 531 includes a fixing portion 5311 , a connecting portion 5312 , a first limiting portion 5313 and a second limiting portion 5314 . The connecting portion 5312 is located on one side of the fixing portion 5311 and is connected to the periphery of the fixing portion 5311 . The first limiting portion 5313 and the second limiting portion 5314 are both connected to the connecting portion 5312 . The first limiting portion 5313 and the second limiting portion 5314 and the fixing portion 5311 are located on the same side of the connecting portion 5312 . The first limiting portion 5313 is disposed opposite to the second limiting portion 5314 . In this embodiment, the fixing portion 5311 , the connecting portion 5312 , the first limiting portion 5313 and the second limiting portion 5314 are integrally formed. FIG. 32 schematically distinguishes the fixing portion 5311 , the connecting portion 5312 , the first limiting portion 5313 and the second limiting portion 5314 by dotted lines. In other embodiments, the fixing portion 5311 , the connecting portion 5312 , the first limiting portion 5313 and the second limiting portion 5314 may also be bonded by adhesive tape or glue.

As shown in FIG. 30 , the connecting portion 5312 is fixed to the bottom plate 122 . At this time, the base 531 is fixed to the bottom plate 122 . In other embodiments, some of the connecting portions 5312 are fixed to the first circuit board 51 , and some of the connecting portions 5312 are fixed to the bottom plate 122 .

Please refer to 32 again, the fixing portion 5311 defines a second through hole 5315 . The second through holes 5315 penetrate through opposite surfaces of the fixing portion 5311 .

In addition, for the arrangement of the force-applying member 532, reference may be made to the arrangement of the force-applying member 54 in the second embodiment. The force applying member 532 includes a magnetic member 5321 and a coil 5322 wound on the surface of the magnetic member 5321 .

Please refer to FIG. 33 . FIG. 33 is a schematic diagram of a partial structure of the second fastener 53 shown in FIG. 31 . One end of the magnetic member 5321 passes through the second through hole 5315 of the fixing portion 5311 (please refer to FIG. 32 ), and is fixedly connected to the hole wall of the second through hole 5315 . The coil 5322 is located on the side of the fixing portion 5311 close to the first limiting portion 5313 and the second limiting portion 5314 . As shown in FIG. 31 , the input end of the coil 5322 is electrically connected to the first pin 511 of the first circuit board 51 . The output end of the coil 5322 is electrically connected to the second pin 512 of the first circuit board 51 . At this time, the first circuit board 51 and the coil 5322 form a current path.

Please refer to FIG. 34 in conjunction with FIG. 33 . FIG. 34 is a partial structural diagram of the second fastener 53 shown in FIG. 31 . The elastic member 533 sets the force member 532 , that is, the force application member 532 is located inside the elastic member 533 . At this time, the force-applying member 532 can effectively utilize the inner space of the elastic member 533 to improve the space utilization rate of the self-locking assembly 50 . In addition, one end of the elastic member 533 is fixed to the fixing portion 5311 of the base 531 . At this time, the elastic member 533 is located on the side of the first locking member 52 away from the second moving bracket 144 (please refer to FIG. 30 ). In other embodiments, the elastic member 533 is not provided with the force member 532 , and the elastic member 533 and the force application member 532 are arranged at intervals.

In addition, the sliding block 534 is fixed to the end of the elastic member 533 away from the fixing portion 5311 . At this time, one end of the magnetic member 5321 faces the sliding block 534 . In addition, the sliding block 534 is slidably connected between the first limiting portion 5313 and the second limiting portion 5314 . The material of the sliding block 534 is a magnetic material. For example, the sliding block 534 is a magnet or magnetic steel.

In addition, the limiting block 535 is connected to a side of the sliding block 534 away from the elastic member 533 . At this time, the limiting block 535 is located between the elastic member 533 and the first moving bracket 143 (please refer to FIG. 30 ). The material of the limiting block 535 may be different from the material of the sliding block 534, or may be the same. For example, when the material of the limiting block 535 is different from the material of the sliding block 534, the material of the limiting block 535 can refer to the material of the limiting block 535 of the first embodiment.

In this embodiment, the limiting block 535 is fixed to the side of the sliding block 534 away from the elastic member 533 by glue or tape. In other embodiments, the sliding block 534 and the limiting block 535 may also be integrally formed.

It can be understood that the limiting block 535 is used to lock the second moving bracket 144 when the coil 5322 is powered on. The energization of the coil 5322 can be determined according to whether the second moving bracket 144 is relatively moved. For example, when the second moving bracket 144 is not relatively moving, the coil 5322 is not energized. When the second moving bracket 144 is relatively moved, the coil 5322 is energized. In addition, when the second moving bracket 144 is not relatively moved, the second moving bracket 144 is in the target position.

Locked state: please refer to FIG. 35 , which is an enlarged schematic view of part of the camera module 100 shown in FIG. 30 at D. When the second moving bracket 144 moves to the fixed position, the module circuit board 20 does not transmit electrical signals to the first circuit board 51 . At this point, the coil 5322 is not energized (see Figure 33). Coil 5322 produces no magnetic field. In addition, since the elastic member 533 is in a compressed state, the elastic member 533 applies an elastic force along the negative direction of the Y-axis to the sliding block 534 . At this time, the sliding block 534 is squeezed between the elastic member 533 and the top of the first limiting portion 5313 and the top of the second limiting portion 5314 . In this way, under the support force of the sliding block 534 , part of the limiting block 535 is located in the first through hole 521 of the first locking member 52 . Since the hole wall of the first through hole 521 can limit the movement of the limiting block 535, the second moving bracket 144 is in a locked state.

It can be understood that by squeezing the limiting block 535 into the first through hole 521 of the first snap member 52, the stability of the limiting block 535 can be improved, that is, the limiting block 535 is not easily removed from the first through hole 521. A latch 52 is moved out of the first through hole 521 .

In one embodiment, the locking state of the self-locking assembly 50 can be applied to a scene where the camera module 100 is not in use.

In other embodiments, the elastic member 533 may also be in a natural state. At this time, part of the limiting block 535 may also be located in the first through hole 521 of the first clip 52 .

Unlocked state: please refer to FIG. 36 , FIG. 36 is a schematic diagram of another state of the structure of the camera module 100 shown in FIG. 4 under the third embodiment. When the second moving bracket 144 needs to move along the X-axis from the fixed position, the module circuit board 20 transmits electrical signals to the first circuit board 51 , the coil 5322 (refer to FIG. 33 ) is energized, and the coil 5322 generates a magnetic field. At this time, since the material of the sliding block 534 is a magnetic material, a magnetic attraction force is generated between the force applying member 532 and the sliding block 534 . At this time, the sliding block 534 is subjected to the force exerted by the force applying member 532 , and the force is the magnetic attraction force between the force applying member 532 and the sliding block 534 . In addition, since the elastic member 533 is in a compressed state, the elastic member 533 applies an elastic force along the negative direction of the Y-axis to the sliding block 534 . When the magnetic attraction force of the sliding block 534 is greater than the elastic force of the sliding block 534 along the negative direction of the Y-axis, the sliding block 534 will be in the positive direction of the Y-axis relative to the first limiting portion 5313 and the second limiting portion 5314 under the action of the pulling force. slide. At this time, under the pulling force of the sliding block 534 , the limiting block 535 overcomes the elastic force of the elastic member 533 and moves out of the first through hole 521 of the first locking member 52 . The second moving bracket 144 is in an unlocked state.

In one scenario, the unlocked state of the self-locking assembly 50 can be applied to the scenario in which the camera module 100 starts to be used.

In other embodiments, the structure of the second latching member 53 of the present embodiment may also adopt the structure composed of the connector 52 , the self-locking member 53 and the force-applying member 54 of the first embodiment.

In other embodiments, the structure of the second latching member 53 of the present embodiment may also adopt the structure composed of the self-locking member 53 and the force applying member 54 of the second embodiment.

In other embodiments, the structure constituted by the connector 52 , the self-locking member 53 and the force applying member 54 in the first embodiment may also adopt the structure of the second latching member 53 in this embodiment.

In other embodiments, the structure formed by the self-locking member 53 and the force-applying member 54 of the second embodiment may also adopt the structure of the second locking member 53 of the present embodiment.

The structure of a camera module 100 is described in detail above. Hereinafter, another photographing method of the camera module 100 will be described in conjunction with the structure of the camera module 100 (please refer to FIGS. 1 to 12 and FIGS. 29 to 36 ).

Please refer to FIG. 37 . FIG. 37 is a schematic flowchart of a photographing method of the camera module 100 shown in FIG. 1 in the third embodiment. The shooting method of the camera module 100 includes:

S200 controls the force application member 532 to be energized, so that the force application member 532 applies a force to the limit block 535 to drive the limit block 535 to overcome the elastic force of the elastic member 533 and move out of the first through hole 521 .

In this embodiment, the force applying member 532 includes a magnetic member 5321 and a coil 5322 wound on the surface of the magnetic member 5321 . After the module circuit board 20 receives the shooting signal, the module circuit board 20 controls the coil 5322 to energize. Coil 5322 generates a magnetic field. In addition, since the material of the sliding block 534 is a magnetic material, a magnetic attraction force is generated between the force applying member 532 and the sliding block 534 . At this time, the sliding block 534 is pulled along the positive direction of the Y-axis. In addition, since the elastic member 533 is in a compressed state, the elastic member 533 applies an elastic force along the negative direction of the Y-axis to the sliding block 534 . When the pulling force of the sliding block 534 in the positive direction of the Y-axis is greater than the elastic force of the sliding block 534 in the negative direction of the Y-axis, under the action of the pulling force, the sliding block 534 is relatively opposite to the first limiting portion 5313 and the second limiting portion 5314 along the Sliding in the positive direction of the Y-axis. Under the pulling force of the sliding block 534 , the limiting block 535 overcomes the elastic force of the elastic member 533 and moves out of the first through hole 521 of the first locking member 52 .

S300 controls the second moving bracket 144 to drive the first lens 151 to move from the fixed position to the target position along the optical axis direction of the optical lens 10 .

Specifically, the module circuit board 20 transmits a current signal to the second coil 148 through the lens circuit board 16 . The second coil 148 is energized, and the second magnet 147 can generate an ampere force in the negative direction of the X-axis. At this time, the second magnet 147 pushes the second moving bracket 144 to move in the negative direction of the X-axis under the ampere force. In this way, the first lens 151 fixed to the second moving bracket 144 can also move in the negative direction of the X-axis.

It can be understood that the fixed position refers to a position of the second moving bracket 144 within the moving range. The location can be flexibly set according to needs. The target position refers to any position of the second moving bracket 144 within the moving stroke range.

S400 controls the photosensitive chip 30 to convert optical signals into electrical signals and output them.

S500 controls the second moving bracket 144 to drive the first lens 151 to move from the target position to the fixed position along the optical axis direction of the optical lens 10 .

Specifically, the module circuit board 20 transmits a current signal to the second coil 148 through the lens circuit board 16 . When the second coil 148 is energized, the second magnet 147 can generate an ampere force along the positive direction of the X-axis. At this time, the second magnet 147 pushes the second moving bracket 144 to move in the positive direction of the X-axis under the ampere force. In this way, the first lens 151 fixed to the second moving bracket 144 can also move in the positive direction of the X-axis.

It can be understood that, by changing the direction of the current signal on the second coil 148, or setting the position of the S pole or the N pole of the second magnet 147, when the second coil 148 is energized, the second magnet 147 can generate electricity along the X axis. Ampere force in the positive direction. At this time, the second magnet 147 can push the second moving bracket 144 to move in the positive direction of the X-axis under the ampere force.

S600 controls the power of the force-applying member 532 to be powered off, and part of the limiting block 535 extends into the first through hole 521 under the elastic force of the elastic member 533 .

Specifically, after the first moving bracket 143 is moved to the fixed position, the module circuit board 20 controls the coil 5322 to be powered off. At this time, the coil 5322 is not energized. Coil 5322 produces no magnetic field. Since the elastic member 533 is in a compressed state, the elastic member 533 exerts an elastic force along the negative direction of the Y-axis on the sliding block 534 . At this time, the sliding block 534 is squeezed between the elastic member 533 and the top of the first limiting portion 5313 and the top of the second limiting portion 5314 . In this way, the limiting block 535 extends into the first through hole 521 of the first latching member 52 under the supporting force of the sliding block 534 . In this way, the hole wall of the first through hole 521 can limit the movement of the limiting block 535 .

In one embodiment, in "controlling the second moving bracket 144 to drive the first lens 151 to move from a fixed position to a target position along the optical axis of the optical lens 10, and the optical lens 10 to collect ambient light", the method further includes:

It can be understood that, the Hall sensor 171 and the detection magnet 172 can improve the shooting accuracy of the camera module 100 , so that the effect of the image captured by the camera module 100 is better.

Hereinafter, another setting manner of the lens assembly 101 will be described in detail with reference to the related drawings.

In the fourth embodiment, the same technical contents as those in the first embodiment to the third embodiment will not be repeated: please refer to FIG. 38 , which is another embodiment of the lens assembly 101 shown in FIG. 6 . Partially exploded schematic. The lens assembly 101 includes a housing 12 , a motor 14 , a lens 15 , a lens circuit board 16 , a hall sensor 171 , a detection magnet 172 and a self-locking assembly 50 . The arrangement of the housing 12 , the motor 14 , the lens 15 , the lens circuit board 16 , the Hall sensor 171 , and the detection magnet 172 may refer to the housing 12 , the motor 14 , the lens 15 , the lens circuit board 16 , the Hall sensor 172 in the first embodiment. The arrangement of the sensor 171 and the detection magnet 172. I won't go into details here.

Please refer to FIG. 39 . FIG. 39 is a schematic diagram of a state of the structure of the camera module 100 shown in FIG. 4 in the fourth embodiment. The self-locking assembly 50 is disposed close to the first moving bracket 143 . The self-locking assembly 50 is used to lock the first moving bracket 143 when the power is turned on. The power-on condition of the self-locking assembly 50 can be determined according to whether the first moving bracket 143 moves relatively. For example, when the first moving bracket 143 is not relatively moved, the self-locking assembly 50 is not powered on. When the first moving bracket 143 moves relatively, the self-locking assembly 50 is powered on. In addition, when the first moving bracket 143 is not relatively moved, the first moving bracket 143 is in a fixed position. The fixed position is a position of the first moving bracket 143 when the camera module 100 does not start shooting.

The self-locking assembly 50 is used for locking the first moving support 143 when the first moving support 143 moves to a fixed position relative to the guide rail 141 . It can be understood that, like the third embodiment, the self-locking assembly 50 of this embodiment locks the first moving bracket 143 in a fixed position. The fixed position refers to a position of the first moving bracket 143 within the moving stroke range. The location can be flexibly set according to needs.

In other embodiments, part of the self-locking assembly 50 may also be disposed near the second moving bracket 144 . The self-locking assembly 50 can be used to lock the second moving bracket 144 when the second moving bracket 144 moves to a fixed position.

In other embodiments, there are two sets of self-locking assemblies 50 . A set is disposed close to the first moving bracket 143 for locking the first moving bracket 143 when the first moving bracket 143 moves to a fixed position relative to the guide rail 141 . Another set is disposed close to the second moving bracket 144 for locking the second moving bracket 144 when the second moving bracket 144 moves to a fixed position.

Please refer to FIG. 40 , which is a partially exploded schematic view of the self-locking assembly 50 shown in FIG. 39 . The self-locking assembly 50 includes a first circuit board 51 , a first fastener 52 and a second fastener 53 .

The arrangement of the first circuit board 51 may refer to the arrangement of the first circuit board 51 in the first embodiment. I won't go into details here. The first circuit board 51 includes first pins 511 and second pins 512 .

Wherein, the first fastener 52 is a plate-like structure. The first fastener 52 defines a first through hole 521 . The first through hole 521 penetrates through two opposite surfaces of the first clip 52 . As shown in FIG. 39 , a part of the first latching member 52 is fixed to the first moving bracket 143 .

Please refer to FIG. 41 , FIG. 41 is a partially exploded schematic view of the second fastener 53 shown in FIG. 40 . The second latching member 53 includes an elastic member 531 , a force applying member 532 and a limiting block 533 . The elastic member 531 in this embodiment is described by taking an elastic piece as an example.

The elastic member 531 includes a first fixing portion 5311 , a connecting portion 5312 and a second fixing portion 5313 . The connecting portion 5312 is connected between the first fixing portion 5311 and the second fixing portion 5313 . The second fixing portion 5313 is disposed opposite to the first fixing portion 5311 . At this time, the elastic member 531 is approximately in a "C" shape. In this embodiment, the connecting portion 5312 is arc-shaped. The elasticity of the elastic member 531 is better. In other embodiments, the connecting portion 5312 may also be in the shape of a bar or other shapes.

In this embodiment, the materials of the connecting portion 5312 and the second fixing portion 5313 are both conductive materials.

Referring to FIG. 41 again, the first fixing portion 5311 includes a first conductive segment 5314 , an insulating segment 5315 and a second conductive segment 5316 . One end of the insulating segment 5315 is connected to the first conductive segment 5314 , and the other end is connected to the second conductive segment 5316 . The second conductive segment 5316 is connected to the connecting portion 5312 . In this embodiment, the insulating segment 5315 is located on the same side of the first conductive segment 5314 and the second conductive segment 5316 . In other embodiments, the insulating segment 5315 may also be located between the first conductive segment 5314 and the second conductive segment 5316 .

Please refer to FIG. 42 . FIG. 42 is a partial structural diagram of the self-locking assembly 50 shown in FIG. 39 . The first fixing portion 5311 of the elastic member 531 is fixed to the first circuit board 51 . The elastic member 531 is located on the side of the first locking member 52 (refer to FIG. 39 ) away from the first moving bracket 143 (refer to FIG. 39 ).

In addition, the limiting block 533 is fixed to the side of the second fixing portion 5313 away from the first fixing portion 5311 . At this time, the limiting block 533 is located between the first moving bracket 143 and the second fixing portion 5313 of the elastic member 531 . The material of the limiting block 533 may be the same as that of the second fixing portion 5313, or may be different. When the material of the limiting block 533 is different from the material of the second fixing portion 5313 , the material of the limiting block 533 can also be the material of the limiting block 535 of the first embodiment.

In this embodiment, the limiting block 533 is fixed to the side of the second fixing portion 5313 away from the first fixing portion 5311 by glue or tape. In other embodiments, the limiting block 533 and the second fixing portion 5313 may also be integrally formed.

In addition, the first conductive segment 5314 is electrically connected to the first pin 511 of the first circuit board 51 . The second conductive segment 5316 is electrically connected to the second pin 512 of the first circuit board 51 .

In addition, the biasing member 532 is SMA. One end of the force applying member 532 is connected to the first conductive segment 5314 , and the other end is connected to the second fixing portion 5313 . In this way, the first circuit board 51 , the first conductive segment 5314 , the force applying member 532 , the second fixing portion 5313 , the connecting portion 5312 and the second conductive segment 5316 form a current path.

It can be understood that the limiting block 533 is used to lock the first moving bracket 143 when the force applying member 532 is powered on. The energization of the force-applying member 532 can be determined according to whether the first moving bracket 143 moves relatively. For example, when the first moving bracket 143 is not relatively moved, the force applying member 532 is not powered on. When the first moving bracket 143 moves relatively, the force applying member 532 is energized. In addition, when the first moving bracket 143 is not relatively moved, the first moving bracket 143 is in a fixed position.

Specifically, when the current signal acts on the force applying member 532, the force applying member 532 contracts. At this time, the force applying member 532 generates a contraction force. In this way, the urging member 532 in the contracted state can apply a pulling force to the second fixing portion 5313 . When the pulling force received by the second fixing portion 5313 is greater than the elastic force of the connecting portion 5312, the connecting portion 5312 is bent. In this way, the second fixing portion 5313 drives the limiting block 533 to move.

Locked state: please refer to FIG. 43 , which is an enlarged schematic view of part of the camera module 100 shown in FIG. 39 at E. When the first moving bracket 143 moves to the fixed position, the module circuit board 20 does not transmit a current signal to the first circuit board 51 , and the force applying member 532 is not energized. The force applying member 532 does not shrink. The force applying member 532 does not exert a pulling force on the second fixing portion 5313 . At this time, part of the limiting block 533 is located in the first through hole 521 of the first fastener 52 . The hole wall of the first through hole 521 can limit the movement of the limiting block 533 . At this time, the first moving bracket 143 is in a locked state.

Unlocked state: please refer to FIG. 44 , FIG. 44 is a schematic diagram of another state of the structure of the camera module 100 shown in FIG. 4 under the fourth embodiment. When the first moving bracket 143 needs to move from the fixed position along the X-axis direction, the module circuit board 20 transmits a current signal to the first circuit board 51 , and the force applying member 532 is energized. The force applying member 532 contracts. At this time, the force applying member 532 generates a contraction force. In this way, the urging member 532 in the contracted state can apply a pulling force to the second fixing portion 5313 . When the pulling force received by the second fixing portion 5313 is greater than the elastic force of the connecting portion 5312, the connecting portion 5312 is bent. In this way, the second fixing portion 5313 drives the limiting block 533 to move. At this time, the limiting block 533 is moved out from the first through hole 521 of the first fastener 52 . In this way, the first moving bracket 143 is in an unlocked state.

The structure of a camera module 100 is described in detail above. Hereinafter, another photographing method of the camera module 100 will be introduced in conjunction with the structure of the camera module 100 (please refer to FIG. 38 to FIG. 44 ).

The shooting method of the camera module 100 includes:

The force applying member 532 is controlled to be energized, so that the force applying member 532 exerts a force on the limiting block 535 to drive the limiting block 535 to overcome the elastic force of the elastic member 533 and move out of the first through hole 521 .

In this embodiment, the biasing member 532 is an SMA. After the module circuit board 20 receives the shooting signal, the module circuit board 20 controls the force applying member 532 to energize. At this time, the force applying member 532 contracts. The force-applying member 532 generates a contraction force. In this way, the urging member 532 in the contracted state can apply a pulling force to the second fixing portion 5313 . When the pulling force received by the second fixing portion 5313 is greater than the elastic force of the connecting portion 5312, the connecting portion 5312 is bent. In this way, the second fixing portion 5313 drives the limiting block 533 to move. At this time, the limiting block 533 is moved out from the first through hole 521 of the first fastener 52 .

The first moving bracket 143 is controlled to drive the first lens 151 to move from the fixed position to the target position along the optical axis direction of the optical lens 10 .

It can be understood that the fixed position refers to a position of the first moving bracket 143 within the moving stroke range. The location can be flexibly set according to needs. The target position refers to any position of the first moving bracket 143 within the moving stroke range.

Specifically, the module circuit board 20 transmits a current signal to the first coil 146 through the lens circuit board 16 . The first coil 146 is energized, and under the action of the first coil 146, the first magnet 145 can generate the magnet 145 in the negative direction of the X axis to push the first moving bracket 143 to move in the negative direction of the X axis under the ampere force. In this way, the first lens 151 fixed to the first moving bracket 143 can also move in the negative direction of the X-axis.

The second moving bracket 144 is controlled to drive the first lens 151 to move from the target position to the fixed position along the optical axis direction of the optical lens 10 .

Specifically, the module circuit board 20 transmits a current signal to the first coil 146 through the lens circuit board 16 . The first coil 146 is energized, and the first magnet 145 can generate an ampere force along the positive direction of the X-axis under the action of the first coil 146 . At this time, the first magnet 145 pushes the first moving bracket 143 to move in the positive direction of the X-axis under the ampere force. In this way, the first lens 151 fixed to the first moving bracket 143 can also move in the positive direction of the X-axis.

It can be understood that by changing the direction of the current signal on the first coil 146 or setting the position of the S pole or the N pole of the first magnet 145, when the first coil 146 is energized, the first magnet 145 can generate electricity along the X-axis. Ampere force in the positive direction. At this time, the first magnet 145 can push the first moving bracket 143 to move in the positive direction of the X-axis under the ampere force.

When the power of the force applying member 532 is controlled, part of the limiting block 535 extends into the first through hole 521 under the elastic force of the elastic member 533 .

Specifically, after the first moving bracket 143 moves to the fixed position, the module circuit board 20 controls the force applying member 532 to power off. At this time, the force applying member 532 is not energized, and the current signal does not act on the force applying member 532 . The force applying member 532 does not shrink. At this time, the limiting block 533 protrudes into the first through hole 521 of the first fastener 52 under the elastic force of the connecting portion 5312 . The hole wall of the first through hole 521 can limit the movement of the limiting block 533 .

In one embodiment, in "controlling the first moving bracket 143 to drive the first lens 151 to move from a fixed position to a target position along the optical axis of the optical lens 10, and the optical lens 10 to collect ambient light", the method further includes:

It can be understood that, the above four types of camera modules 100 are specifically introduced in conjunction with the accompanying drawings. Each camera module 100 is provided with a self-locking assembly 50 . It can be understood that when the first lens 151 of the camera module 100 moves to the target position, the motor is locked by the self-locking component 50, so that the stability of the first lens 151 on the motor 14 is better, that is, the The first lens 151 is not easily moved due to external shaking or vibration, so that when the user is taking a photo, the captured image is not easily deformed or blurred. In particular, when the user takes a photo during exercise, the effect of the image captured by the camera module 100 is also better. Therefore, the effect of the image captured by the camera module 100 of the present application is also better.

The above are only specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any person skilled in the art can easily think of changes or replacements within the technical scope disclosed in the present application, and should cover within the scope of protection of this application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims

An optical lens, characterized in that it includes a motor, a first lens and a self-locking assembly; the motor includes a driving member and a moving bracket, the first lens is mounted on the moving bracket, and the driving member is used to drive the the moving bracket moves along the optical axis direction of the optical lens;

The self-locking assembly includes a base, a rotating member, a force-applying member, an elastic member and a limit block; the base is arranged at intervals from the moving bracket, the rotating member is rotatably connected to the base, and one end of the elastic member is is connected to the rotating member, the other end is connected to the base, the limiting block is located between the rotating member and the moving bracket, the limiting block is fixed to the rotating member, and the force applying member for applying a force to the rotating member when energized;

When the force-applying member is not energized, the limit block is in contact with the moving bracket under the elastic force of the elastic member, and a static friction force can be generated between the limit block and the moving bracket;

When the force applying member is energized, the rotating member is driven to overcome the elastic force of the elastic member, and drives the limiting block to rotate, so as to separate the limiting block from the moving bracket.
The optical lens according to claim 1, wherein the connecting position of the limiting block and the rotating member is a first position, and the force applying position of the force applying member to the rotating member is a second position , the rotational position of the rotating member is located between the first position and the second position.
The optical lens according to claim 2, wherein the force applying member is a shape memory alloy, and the direction of the force is the same as the pressure applied by the limiting block to the moving bracket.
The optical lens according to claim 3, wherein the material of the rotating member is a conductive material, and the self-locking assembly further comprises a first circuit board, a connector and a rotating shaft;

The first circuit board and the moving bracket are arranged at intervals, and the first circuit board includes first pins and second pins arranged at intervals;

The connector is fixed on the first circuit board, and the connector is electrically connected to the first pin, one end of the force applying member is fixed on the connector, and the other end is fixed on the rotating member ;

One end of the rotating shaft is fixed to the base, the other end is rotatably connected to the rotating member, and the rotating shaft is electrically connected to the second pin.
The optical lens according to claim 3, wherein the elastic member is located on a side of the rotating member away from the limiting block, and the elastic member is disposed opposite to the limiting block.
The optical lens according to claim 1, wherein the connecting position of the limiting block and the rotating member is a first position, and the force applying position of the force applying member to the rotating member is a second position , the first position and the second position are located on the same side of the rotation position of the rotating member.
The optical lens according to claim 6, wherein the material of the rotating member is a magnetic material; the force applying member comprises a magnetic member and a coil wound on the surface of the magnetic member, and one end of the magnetic member is fixed On the base, the other end faces the rotating member, and the direction of the acting force is opposite to the pressure exerted by the limiting block on the moving bracket.
The optical lens according to claim 7, wherein the elastic member and the force-applying member are located on the same side of the rotating member, and the elastic member and the force-applying member are located at the same side of the rotating member. Rotate both sides of the position.
The optical lens according to any one of claims 1 to 8, wherein the motor further comprises a base plate, a fixing bracket and a guide rail, the fixing bracket is arranged opposite to the base plate, and one end of the guide rail is fixed on the base plate. The other end of the base plate is fixed to the fixed bracket; the movable bracket is located between the base plate and the fixed bracket, and is movably connected to the guide rail, the optical lens further includes a second lens, the first lens Two lenses are mounted on the fixing bracket, and the second lens is located on the object side of the first lens.
The optical lens according to claim 9, wherein the optical lens further comprises a casing, the base plate and the fixing bracket are located inside the casing and are fixed to the casing;

The moving support includes a first moving support and a second moving support spaced apart, the driving member includes a first magnet, a first coil, a second magnet and a second coil; the first magnet is fixed to the first a moving bracket, the first coil is fixed on the inner side of the casing and faces the first magnet; the second magnet is fixed on the second moving bracket, and the second coil is fixed on the inner side of the casing , and faces the second magnet.
The optical lens according to claim 10, wherein the optical lens further comprises a lens circuit board, and the lens circuit board is electrically connected to the first coil and the second coil.
The optical lens according to any one of claims 1 to 8, wherein the optical lens further comprises a Hall sensor and a detection magnet, the detection magnet is fixed on the moving bracket, and the Hall sensor is used for for detecting the magnetic field strength when the detection magnet is at different positions.
The optical lens according to any one of claims 1 to 12, wherein the optical lens further comprises a prism motor and a reflection member; the reflection member is rotatably connected to the prism motor, and the reflection member is used for The ambient light is reflected to propagate the ambient light to the first lens.
An optical lens, characterized in that it includes a motor, a first lens and a self-locking assembly; the motor includes a driving member and a moving bracket, the first lens is mounted on the moving bracket, and the driving member is used to drive the the moving bracket moves along the optical axis direction of the optical lens;

The self-locking assembly includes a first buckle piece and a second buckle piece; the first buckle piece is fixed to the moving bracket, and the first buckle piece is provided with a first through hole; the second buckle piece is provided with a first through hole. The clip includes an elastic piece, a limit block and a force applying piece, the elastic piece is located on the side of the first clip away from the moving bracket, and the limit block is located between the elastic piece and the moving bracket Between the brackets, the limiting block is fixed on one end of the elastic member, and the force applying member is used to exert a force on the limiting block when the power is turned on;

When the force-applying member is not energized, some of the limiting blocks are located in the first through hole;

When the force applying member is energized, the limiting block is driven to overcome the elastic force of the elastic member and move out of the first through hole.
The optical lens according to claim 14, wherein the second snap member further comprises a base and a sliding block; an end of the elastic member away from the limiting block is fixed to the base;

The sliding block is connected between the elastic member and the limiting block, the sliding block is slidably connected to the base, and the material of the sliding block is a magnetic material;

The force-applying member includes a magnetic member and a coil wound on the surface of the magnetic member, one end of the magnetic member is fixed on the base, and the other end faces the sliding block.
The optical lens according to claim 15, wherein the elastic member is sleeved with the force-applying member.
The optical lens according to claim 15 or 16, wherein when the force applying member is not energized, the elastic member applies elastic force to the sliding block.
The optical lens according to claim 14, wherein the elastic member comprises a first fixing part, a connecting part and a second fixing part, and the connecting part is connected to the first fixing part and the second fixing part the second fixing part is arranged opposite to the first fixing part, and the limiting block is fixed on the side of the second fixing part away from the first fixing part;

The force applying member is a shape memory alloy, one end of the force applying member is connected to the first fixing portion, and the other end is connected to the second fixing portion.
The optical lens according to claim 18, wherein the material of the second fixing portion and the connecting portion is a conductive material; the self-locking assembly further comprises a first circuit board, and the first circuit board comprises The first pin and the second pin of the interval setting;

The first fixing part includes a first conductive segment, an insulating segment and a second conductive segment. One end of the insulating segment is connected to the first conductive segment, and the other end is connected to the second conductive segment. The conductive segment is connected to one end of the force applying member, the second conductive segment is connected to the connecting portion, the first conductive segment is electrically connected to the first pin, and the second conductive segment is electrically connected to the the second pin.
The optical lens according to any one of claims 14 to 19, wherein the motor further comprises a base plate, a fixing bracket and a guide rail, the fixing bracket is arranged opposite to the base plate, and one end of the guide rail is fixed on the base plate. The other end of the base plate is fixed to the fixed bracket; the movable bracket is located between the base plate and the fixed bracket, and is movably connected to the guide rail, the optical lens further includes a second lens, the first lens Two lenses are mounted on the fixing bracket, and the second lens is located on the object side of the first lens.
The optical lens according to claim 20, wherein the optical lens further comprises a casing, the base plate and the fixing bracket are located inside the casing and are fixed to the casing;

The moving support includes a first moving support and a second moving support spaced apart, the driving member includes a first magnet, a first coil, a second magnet and a second coil; the first magnet is fixed to the first a moving bracket, the first coil is fixed on the inner side of the casing and faces the first magnet; the second magnet is fixed on the second moving bracket, and the second coil is fixed on the inner side of the casing , and faces the second magnet.
The optical lens according to claim 21, wherein the optical lens further comprises a lens circuit board, and the lens circuit board is electrically connected to the first coil and the second coil.
The optical lens according to any one of claims 14 to 19, wherein the optical lens further comprises a Hall sensor and a detection magnet, the detection magnet is fixed on the moving bracket, and the Hall sensor is used for for detecting the magnetic field strength when the detection magnet is at different positions.
A camera module, characterized in that a module circuit board, a photosensitive chip, a filter, and the optical lens according to any one of claims 1 to 23;

The module circuit board is located on the image side of the optical lens; the photosensitive chip is fixed on the side of the module circuit board facing the optical lens, and the photosensitive chip is used to collect images passing through the optical lens. ambient light;

The filter is fixed on the side of the photosensitive chip facing the optical lens.
An electronic device, comprising a casing and a camera module as claimed in claim 24, wherein the camera module is mounted on the casing.
A shooting method of a camera module, characterized in that the camera module comprises an optical lens and a photosensitive chip, and the photosensitive chip is located on the image side of the optical lens;

The optical lens includes a motor, a first lens and a self-locking assembly; the motor includes a driving part and a moving bracket, the first lens is mounted on the moving bracket, and the driving part is used to drive the moving bracket along the The optical lens moves in the direction of the optical axis; the self-locking assembly includes a base, a rotating member, a force-applying member, an elastic member and a limit block; the base and the moving bracket are arranged at intervals, and the rotating member is rotatably connected to the The base, one end of the elastic member is connected to the rotating member, and the other end is connected to the base, the limiting block is located between the rotating member and the moving bracket, and the limiting block is fixed to the base. the rotating part;

The shooting method includes:

receive shooting signals;

Control the power-on of the force-applying member, so that the force-applying member exerts a force on the rotating member, so as to drive the rotating member to overcome the elastic force of the elastic member, and drive the limiting block to rotate and leave the movement bracket;

controlling the moving bracket to drive the first lens to move along the optical axis of the optical lens;

When the moving bracket moves to the target position, the force application member is controlled to be powered off, and the rotating member drives the limit block to rotate under the elastic force of the elastic member, so that the limit block is pressed against the desired position. contact with the moving bracket;

The photosensitive chip is controlled to convert optical signals into electrical signals and output them.
The shooting method of a camera module according to claim 26, wherein the optical lens further comprises a Hall sensor and a detection magnet, and the detection magnet is fixed to the moving bracket;

In "controlling the moving bracket to drive the first lens to move along the optical axis of the optical 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 moving bracket is controlled to drive the first lens to move the target position along the optical axis direction of the optical lens.
A shooting method of a camera module, characterized in that the camera module comprises an optical lens and a photosensitive chip, and the photosensitive chip is located on the image side of the optical lens;

The optical lens includes a motor, a first lens, and a self-locking assembly; the motor includes a driving member and a moving bracket, the first lens is mounted on the moving bracket, and the driving member is used to drive the moving bracket along the moving bracket. the optical axis of the optical lens moves in the direction of the optical axis; the self-locking assembly includes a first buckle and a second buckle; the first buckle is fixed on the moving bracket, and the first buckle is provided with a first through hole; the second buckle includes an elastic piece, a limit block and a force-applying piece, the elastic piece is located on the side of the first buckle away from the moving bracket, and the limit block is located between the elastic piece and the moving bracket, and the limiting block is fixed to one end of the elastic piece;

The shooting method includes:

receive shooting signals;

Controlling the power-on of the force-applying member, so that the force-applying member applies a force to the limit block, so as to drive the limit block to overcome the elastic force of the elastic member and move out of the first through hole;

controlling the moving bracket to drive the first lens to move from a fixed position to a target position along the optical axis of the optical lens;

controlling the photosensitive chip to convert optical signals into electrical signals and output them;

controlling the moving bracket to drive the first lens to move from the target position to the fixed position along the optical axis direction of the optical lens;

Controlling the power of the force applying member to power off, part of the limiting block protrudes into the first through hole under the elastic force of the elastic member.