CN113489905B

CN113489905B - Camera module, electronic equipment and control method of electronic equipment

Info

Publication number: CN113489905B
Application number: CN202110774968.XA
Authority: CN
Inventors: 李博正
Original assignee: Vivo Mobile Communication Co Ltd
Current assignee: Vivo Mobile Communication Co Ltd
Priority date: 2021-07-08
Filing date: 2021-07-08
Publication date: 2023-05-19
Anticipated expiration: 2041-07-08
Also published as: CN113489905A

Abstract

The application discloses a camera module, electronic equipment and a control method of the electronic equipment, and belongs to the technical field of camera equipment. The camera module comprises a first bracket, a camera assembly and at least three driving mechanisms, wherein the at least three driving mechanisms surround a light entering channel of the camera assembly, and the at least three driving mechanisms are respectively in running fit with the side face of the camera assembly. The at least three driving mechanisms are arranged on the first bracket, and can respectively move towards a direction close to or far away from the first bracket relative to the first bracket so as to drive the camera component to rotate relative to the first bracket. The scheme can solve the problems that the structure of the camera module with the anti-shake function is complex and the occupied space is large.

Description

Camera module, electronic equipment and control method of electronic equipment

Technical Field

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

Background

With the development of technology, shooting performance of electronic devices is getting better. More and more electronic devices adopt an anti-shake technology, and the anti-shake technology can enable a user to overcome adverse effects caused by handheld shake in a shooting process, so that shooting quality can be improved.

In view of the fact that the current optical anti-shake technology and the electronic anti-shake technology cannot meet the anti-shake requirement, electronic equipment disclosed in the related art is provided with a micro-holder mechanism, and the micro-holder mechanism can enable a camera to rotate around two rotating shafts through a relatively complex support structure, so that anti-shake deflection of the camera is achieved. The micro-holder mechanism has the defects of complex structure, large occupied space and the like, and has large assembly difficulty in electronic equipment with increasingly limited space.

Disclosure of Invention

An object of the embodiment of the application is to provide a camera module, electronic equipment and a control method of the electronic equipment, which can solve the problems of complex structure and large occupied space of the camera module with an anti-shake function.

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

the camera module comprises a first bracket, a camera assembly and at least three driving mechanisms, wherein the at least three driving mechanisms surround a light entering channel of the camera assembly, and are respectively in rotary fit with the side surface of the camera assembly; the at least three driving mechanisms are arranged on the first bracket, and can respectively move towards a direction close to or far away from the first bracket relative to the first bracket so as to drive the camera component to rotate relative to the first bracket.

Based on the camera module, the application further provides electronic equipment, and the electronic equipment comprises the camera module.

Based on the electronic equipment provided by the application, the application also provides a control method of the electronic equipment. The control method of the electronic equipment comprises the following steps:

under the condition that the electronic equipment is in a shooting mode, the shaking direction and the shaking angle of the electronic equipment are obtained;

according to the shaking direction and the shaking angle of the electronic equipment, the driving mechanism is controlled to move relative to the first bracket respectively and drive the camera component to rotate relative to the first bracket in the opposite direction of the shaking of the electronic equipment, and the rotating angle of the camera component relative to the first bracket is controlled to reduce the shaking of the camera component.

The technical scheme that this application adopted can reach following beneficial effect:

the camera module disclosed by the embodiment of the application comprises at least three driving mechanisms. The driving mechanism surrounds the light entering channel of the camera assembly and is in rotary fit with the side face of the camera assembly, so that the driving mechanism can stably support the camera assembly, and the camera assembly can rotate around the joint of each driving mechanism and the camera assembly relative to the first bracket. Through controlling the relative first support motion of actuating mechanism respectively for camera subassembly rotates around different axis relative first support, and then realizes that the camera subassembly compensates the shake that the camera module appears in shooting process to different direction, in order to weaken or eliminate the shake of camera subassembly when shooting, promotes the camera subassembly and shoots quality. Compared with the prior art, the structure does not need a multi-layer suspension structure arranged in the related art to provide the freedom degree of the camera module, so that the structure of the camera module is simplified, and the volume of the camera module can be effectively reduced.

Drawings

FIG. 1 is a schematic perspective view of an imaging module disclosed in one embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of an imaging module disclosed in one embodiment of the present application;

FIG. 3 is an exploded view of a camera module disclosed in one embodiment of the present application;

FIG. 4 is a schematic illustration of a first drive mechanism disclosed in one embodiment of the present application;

FIG. 5 is a schematic diagram of a first driver driving a drive rod according to one embodiment of the present application;

FIG. 6 is a schematic diagram showing a first driving member driving a driving rod to move a driving block from an a position to an f position according to an embodiment of the present application;

FIG. 7 is a graph of velocity versus time for the transmission block of FIG. 6 moving from the a position to the f position.

In the figure:

100-a first rack;

200-a first drive mechanism;

210-a first driver; 220-a transmission rod; 230-a transmission block; 240-balls; 250-a first electrical connection;

300-a second drive mechanism;

400-a third drive mechanism;

500-camera assembly;

510-lens; 520-a photosensitive chip; 530-a third bracket; 540-a second electrical connection; 550-spherical grooves;

600-a first magnetic member;

700-magneto-resistance effect element;

800-a second rack;

900-guide rail.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.

The terms first, second and the like in the description and in the claims, are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged, as appropriate, such that embodiments of the present application may be implemented in sequences other than those illustrated or described herein, and that the objects identified by "first," "second," etc. are generally of a type and not limited to the number of objects, e.g., the first object may be one or more. Furthermore, in the description and claims, "and/or" means at least one of the connected objects, and the character "/", generally means that the associated object is an "or" relationship.

The following describes in detail the camera module provided in the embodiments of the present application through specific embodiments and application scenarios thereof with reference to fig. 1 to 7.

Referring to fig. 1 to 3, a camera module disclosed in an embodiment of the present application includes a first bracket 100, a camera assembly 500, and at least three driving mechanisms. The first bracket 100 may provide a mounting base for the camera assembly 500 and three drive mechanisms.

Referring to fig. 1 and 3, the at least three driving mechanisms surround the light entrance channel of the camera assembly 500, and the at least three driving mechanisms are respectively rotatably engaged with the sides of the camera assembly 500. The first bracket 100 is a basic structural member that may provide a mounting basis for the drive mechanism.

The at least three driving mechanisms may be provided to the first bracket 100. The at least three driving mechanisms can move towards or away from the first bracket 100 respectively relative to the first bracket 100, so as to drive the camera assembly 500 to rotate relative to the first bracket 100. Specifically, each driving mechanism moves in a direction away from or towards the first bracket 100, so that the camera assembly 500 can rotate around the connection between the driving mechanism and the camera assembly 500 relative to the first bracket 100.

The light entrance channel of the camera module 500 refers to: during imaging of camera assembly 500, light enters the optical path of camera assembly 500. The driving mechanism surrounds the light entering channel of the camera assembly 500, which means that the driving mechanism is distributed along the circumferential direction of the light entering channel.

Compared with the suspended multi-layer ball joint rotating structure in the related art, the structure for realizing the deflection freedom degree of the camera assembly 500 relative to the first bracket 100 disclosed in the above embodiment is simpler in structure and smaller in occupied space, and the occupied space of the camera module can be reduced. Moreover, the camera module disclosed in the above embodiment can prevent the camera module 500 from shaking relative to the first bracket 100 in the case of being in the non-shooting mode, so that not only the collision damage of the camera module 500 can be avoided, but also the collision of the camera module 500 and the first bracket 100 can be prevented from sounding, and the user experience can be improved.

Alternatively, the motion track of each driving mechanism relative to the first bracket 100 is a straight line, and the motion tracks of each driving mechanism relative to the first bracket 100 may be parallel to each other, so as to improve the consistency of driving the camera assembly 500 by each driving mechanism, that is, the range of the deflection angle of each driving mechanism for driving the camera assembly 500 is the same.

In an alternative embodiment, the first bracket 100 includes a mounting surface to which the drive mechanism is disposed. Optionally, each driving mechanism is arranged on the same mounting surface, so that the driving mechanisms are conveniently mounted, and the manufacturing difficulty of the camera module is reduced. In addition, the driving mechanism is disposed on the same mounting surface, which is favorable for forming avoidance spaces with balanced sizes between each camera module 500 and the first bracket 100 in all directions, so that the rotation range of the upper camera module 500 relative to the first bracket 100 in all directions is consistent.

Of course, each driving mechanism may be disposed on a different mounting surface, that is, the first bracket 100 is provided with a plurality of mounting positions for mounting the driving mechanisms, and the mounting positions are not coplanar.

Alternatively, the driving mechanism may reciprocate relative to the first bracket 100 along a direction perpendicular to the mounting surface, and drive the camera assembly 500 to rotate relative to the first bracket 100, so that the camera assembly 500 may rotate relative to the first bracket 100 around a connection between the driving mechanism and the camera assembly 500. The driving mechanisms can reciprocate along the direction perpendicular to the mounting surface relative to the first bracket 100, so that consistency of the driving mechanisms is ensured, and difficulty in driving the camera assembly 500 by the driving mechanisms can be simplified.

The driving mechanisms being reciprocally movable with respect to the first brackets 100 in directions perpendicular to the mounting surface means that: the driving mechanism may output power in a direction perpendicular to the mounting surface. And further, the portion of the driving mechanism connected to the camera module 500 can move in a direction perpendicular to the mounting surface with respect to the first bracket 100.

Alternatively, in the case that the camera module 500 does not rotate relative to the first bracket 100, that is, in the case that the electronic device including the camera module does not shake during shooting, the direction of the light entering channel may be perpendicular to the mounting surface of the first bracket 100, so as to adjust the rotation angle of the camera module 500 relative to the first bracket 100 by controlling a plurality of driving mechanisms. The direction of the light entry channel may be along the central axis of the light entry channel.

The driving mechanism and the camera assembly 500 can be in running fit through the universal joint, so that the camera assembly 500 can rotate around multiple directions relative to the driving mechanism, and the flexibility of the camera assembly 500 is improved. There are many types of universal joints, for example: ball-fork type universal joints, ball-cage type universal joints, duplex universal joints, cross-shaft universal joints and the like.

Of course, the driving mechanisms and the side surface of the camera assembly 500 may be further in a rotating fit through the shaft hole, so that the camera assembly 500 may rotate around a direction relative to each driving mechanism, and further the camera assembly 500 may rotate relative to the first bracket 100.

Specifically, for convenience of explanation, the at least three driving mechanisms are divided into a first group of driving mechanisms and a second group of driving mechanisms. Wherein the camera assembly 500 rotates about a first line with respect to each of the first set of drive mechanisms; that is, in the case where the number of driving mechanisms in the first group of driving mechanisms is two or more, the axes of the driving mechanisms corresponding to the shafts for the rotational engagement of the camera module 500 are all the first straight lines. The camera assembly 500 rotates about a second line relative to each of the second set of drive mechanisms; that is, in the case where the number of driving mechanisms in the second group of driving mechanisms is two or more, the axes of the respective driving mechanisms for rotation-fitting with the camera module 500 are all the second straight lines. The first straight line intersects the second straight line. And further, each driving mechanism in the first group of driving mechanisms can be controlled to reciprocate along the direction perpendicular to the mounting surface, so as to drive the camera assembly 500 to rotate around the second straight line relative to the first bracket 100. Each driving mechanism in the second set of driving mechanisms can be controlled to reciprocate along the direction perpendicular to the mounting surface, so as to drive the camera assembly 500 to rotate around the first straight line relative to the first bracket 100.

Further, the first straight line is perpendicular to the second straight line, so as to control each driving mechanism to reciprocate along the direction perpendicular to the mounting surface, so that the camera assembly 500 rotates in different directions relative to the first bracket 100, and anti-shake movements in different directions are realized.

There are many ways in which the drive mechanism may be rotationally engaged with the sides of the camera head assembly 500. For this reason, the manner in which the drive mechanism is rotationally engaged with the side of camera assembly 500 is not limited in this application.

There are many kinds of driving mechanisms, for example: the screw slider mechanism, the telescopic mechanism, the voice coil motor, and the like, and therefore, the specific kind of the driving mechanism is not limited in the present application.

Alternatively, the at least three driving mechanisms may include a first driving mechanism 200, a second driving mechanism 300, and a third driving mechanism 400. The camera module 500 is supported to the first bracket 100 by the first driving mechanism 200, the second driving mechanism 300, and the third driving mechanism 400.

Referring to fig. 1 and 3, the first, second and

third driving mechanisms

200, 300 and 400 may be distributed around the light entrance channel of the camera assembly 500 and rotatably coupled with the side of the camera assembly 500 such that the camera assembly 500 may be supported to the first bracket 100 by the first, second and

third driving mechanisms

200, 300 and 400. Specifically, the connection between the first driving mechanism 200 and the camera assembly 500 is a first supporting point; the joint of the second driving mechanism 300 and the camera assembly 500 is a second supporting point; the connection between the third driving mechanism 400 and the camera assembly 500 is a third supporting point. The first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400 may be distributed around the light entrance channel of the camera assembly 500, so that the first supporting point, the second supporting point and the third supporting point are not collinear, that is, the first supporting point, the second supporting point and the third supporting point form three vertexes of a triangle, and further the camera assembly 500 may be stably maintained under the support of the first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400.

Referring to fig. 1, the first axis is a straight line passing through the second support point and the third support point. In the case that the first driving mechanism 200 moves relative to the first bracket 100, the first driving mechanism 200 may drive the camera assembly 500 to rotate about the first axis relative to the first bracket 100. Further, the second axis is a straight line passing through the first supporting point and the third supporting point. In the case that the second driving mechanism 300 moves relative to the first bracket 100, the second driving mechanism 300 may drive the camera assembly 500 to rotate about the second axis relative to the first bracket 100. The third axis is a straight line passing through the first supporting point and the second supporting point. In the case that the third driving mechanism 400 moves relative to the first bracket 100, the third driving mechanism 400 may drive the camera assembly 500 to rotate about the third axis relative to the first bracket 100. Specifically, the first axis intersects the second axis at a third supporting point; the first axis intersects with the third axis at a second supporting point; the second axis intersects the third axis at the first supporting point. Thus, any one of the first axis, the second axis, and the third axis may intersect the remaining two.

In the case where the directions of movement of the first and

second driving mechanisms

200 and 300 are opposite, the camera assembly 500 may be rotated about the fourth axis with respect to the first bracket 100. The fourth axis is a straight line passing through the third supporting point, and deflects towards the first supporting point relative to the first axis, and deflects towards the second supporting point relative to the second axis. Further, when the distance by which the first drive mechanism 200 moves relative to the first bracket 100 is constant, the greater the distance by which the second drive mechanism 300 moves relative to the first bracket 100, the greater the angle by which the fourth axis deflects relative to the first axis. The smaller the distance the second drive mechanism 300 moves relative to the first bracket 100, the smaller the angle the fourth axis deflects relative to the first axis. Accordingly, the position of the fourth axis may be adjusted by controlling the distance that the first and

second driving mechanisms

200 and 300 move relative to the first bracket 100.

Similarly, in the case where the directions of movement of the first driving mechanism 200 and the third driving mechanism 400 are opposite, the camera module 500 may rotate about the fifth axis with respect to the first bracket 100. The fifth axis passes through the second supporting point, and the fifth axis is deviated from the first supporting point relative to the first axis, and the fifth axis is deviated from the third supporting point relative to the third axis. The position of the fifth axis may then be adjusted by controlling the distance that the first drive mechanism 200 and the third drive mechanism 400 move relative to the first bracket 100. In the case where the movement directions of the second driving mechanism 300 and the third driving mechanism 400 are opposite, the camera assembly 500 may be rotated about the sixth axis with respect to the first bracket 100. The sixth axis passes through the first supporting point, and the sixth axis is biased towards the second supporting point relative to the second axis, and the sixth axis is biased towards the third supporting point relative to the third axis. The position of the sixth axis may then be adjusted by controlling the distance that the second drive mechanism 300 and the third drive mechanism 400 move relative to the first bracket 100.

Further, in the case that the movement directions of the first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400 are not identical, that is, the movement direction of one of the first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400 is opposite to the movement direction of the other two, the displacement of the first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400 relative to the first bracket 100 can be controlled respectively, the deflection direction and the deflection angle of the camera assembly 500 can be adjusted, so that the camera assembly 500 can realize deflection movements with different magnitudes in different directions, and further compensate jitter with different magnitudes in different directions, so as to reduce or eliminate the influence of equipment jitter on the view finding of the camera assembly 500, and improve the imaging quality of the camera assembly 500. Further, by controlling the first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400 respectively, the deflection center of the camera assembly 500 relative to the first bracket 100 approaches to the optical axis corresponding to the lens 510 in the camera assembly 500, so that the consistency of the compensation movement ranges of the camera module in all directions and angles is improved, the movement accuracy of the camera assembly 500 relative to the first bracket 100 is improved, and the anti-shake performance of the camera module is further improved. Wherein, the center of deflection of the camera assembly 500 relative to the first bracket 100 refers to: the camera assembly 500 rotates relative to the first bracket 100 in different directions at the intersection of the corresponding rotational axes.

In an alternative embodiment, the camera module includes the first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400, and the first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400 may be uniformly distributed along the circumference of the camera module 500, that is, any one of the first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400 and the interval between the other two are equal, so as to improve the consistency of the anti-shake movement range of the camera module in each direction or angle, and facilitate the manufacture and control of the camera module.

Referring to fig. 1 to 4, the driving mechanisms may optionally each include a first driving member 210, a driving rod 220, and a driving block 230. The transmission rod 220 is slidably engaged with the first bracket 100. The first driving member 210 is connected to the driving rod 220, and the first driving member 210 drives the driving rod 220 to move along the axial direction of the driving rod 220. The transmission block 230 is in rotation fit with the camera assembly 500, the transmission block 230 is connected with the transmission rod 220, and the transmission rod 220 can drive the camera assembly 500 to rotate relative to the first bracket 100 through the transmission block 230. Alternatively, the driving mechanism reciprocates along the axial direction of the respective corresponding driving rod 220 with respect to the first bracket 100. Alternatively, the driving rod 220 may be perpendicular to the first bracket 100 such that the driving block 230 may be far from or near the first bracket 100 in a direction perpendicular to the first bracket 100. The transmission rod 220 is perpendicular to the first bracket 100, which means that an axis corresponding to the transmission rod 220 is perpendicular to a mounting surface or a tangential plane where the first bracket mounts the driving mechanism.

In the above embodiment, the transmission block 230 is in rotational fit with the camera assembly 500, and the first driving member 210 drives the camera assembly 500 to move relative to the first bracket 100 through the transmission rod 220 and the transmission block 230, which is the contact force, that is, the force is transmitted through the contact between the components and the extrusion or push-pull, so as to provide a continuous and stable acting force for the camera assembly 500. The force transmission through the contact connection between the components of the present application provides a greater driving force for the yaw movement of camera assembly 500 than with the use of electromagnetic non-contact forces in the related art.

In the related art, the camera is driven to rotate by non-contact force, and the camera is not contacted with the driving piece or the transmission piece in the force transmission process, so that the camera is greatly influenced by the view finding angle of the camera module. For example, when the camera module is at different view finding angles, the direction of gravity of the camera is different from the included angle of the corresponding optical axis of the camera, and then the camera needs supporting force with different sizes and directions in the process of shooting at different angles. Therefore, the force direction acting on the camera needs to be adjusted in the related art, and it is difficult to achieve the force balance of the camera. In this application, the "contact force" is adopted, and under the condition that the view directions of the camera assembly 500 are different, the directions of the supporting forces of the first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400 received by the camera assembly 500 are also changed, so that no additional adjustment is needed. Moreover, the transmission block 230 is in running fit with the camera assembly 500, so that the rotation angle of the camera assembly 500 relative to the first bracket 100 can be increased, the maximum deflection angle of the camera assembly 500 for compensating motion is further increased, and the anti-shake performance of the camera assembly 500 is improved.

Optionally, the camera assembly 500 may include a second electrical connector 540, and the camera assembly 500 may be connected to the power supply circuit at least through the second electrical connector 540. The second electrical connector 540 may be a flexible circuit board. During the rotation of the camera assembly 500 relative to the first bracket 100, the camera assembly 500 drives the second electrical connector 540 to deform.

In the related art, in a camera module with an anti-shake function, a driving force which can be generated by a driving mechanism for driving a camera to move is smaller, so that the anti-shake movement of the camera is greatly influenced by resistance generated by a camera power supply circuit. In order to reduce the resistance that the camera power supply line produced in the related art, still be provided with camera power supply line box to make the power supply line of camera can be in "S" shape arrangement in power supply line box, and then reduce the resistance that the camera power supply line produced. The application utilizes transfer line 220 and drive block 230 can provide bigger drive power for camera subassembly 500 relatively, and then can overcome or weaken second electric connector 540 and hinder the pivoted resistance of camera subassembly 500 relative first support 100, and then need not to set up the power supply circuit box that holds second electric connector 540, reduces camera module occupation space.

The types of the first driving member 210 are numerous, for example, a cam mechanism, a hydraulic rod, a cylinder, a screw mechanism, etc., and for this reason, the present embodiment is not limited to the specific type of the first driving member 210.

Referring to fig. 1 and 4, the driving mechanism may be connected with the camera module 500 through a ball hinge. Specifically, the driving mechanism may further include a ball 240, one of the transmission block 230 and the camera module 500 is provided with a spherical groove 550, the other is connected with the ball 240, the ball 240 is at least partially located in the spherical groove 550, and the ball 240 is in a rotating fit with the spherical groove 550.

Referring to fig. 3 and 4, a spherical groove 550 is formed in a side surface of the camera module 500, a ball 240 is disposed on the transmission block 230, and the ball 240 is partially embedded into the spherical groove 550, so that the transmission block 230 and the camera module 500 are connected through a spherical pair, thereby not only providing freedom for rotation of the camera module 500, but also providing supporting force in various directions for the camera module 500, and further providing supporting force for overcoming gravity for the camera module 500 through the ball 240 in different view finding directions.

In an alternative embodiment, both the drive block 230 and the camera head assembly 500 may be provided with spherical recesses 550. Ball 240 is at least partially disposed in spherical recess 550, and ball 240 is in rotational engagement with spherical recess 550.

The transmission block 230 may be slidably engaged with the transmission rod 220, and in a case where the transmission rod 220 is stationary with respect to the first bracket 100, the friction force between the transmission block 230 and the transmission rod 220 may keep the transmission block 230 relatively stationary with respect to the transmission rod 220, i.e., in a case where the first driving member 210 does not drive the transmission rod 220, the transmission block 230 and the transmission rod 220 may keep relatively stationary, thereby providing a continuous and stable supporting force for the camera assembly 500. Specifically, the magnitude of the maximum static friction between the driving block 230 and the driving rod 220 may be adjusted by adjusting the degree of compactness of the assembly between the driving block 230 and the driving rod 220, so that the driving block 230 may be stationary with respect to the driving rod 220 by the friction between the driving block 230 and the driving rod 220. Of course, the maximum static friction between the transmission block 230 and the transmission rod 220 can be adjusted by changing the friction coefficient of the contact surface of the transmission block 230 and the transmission rod 220 by selecting different materials. Alternatively, the driving rod 220 may be a carbon rod.

In an alternative embodiment, the transmission block 230 is provided with a through hole, and the transmission block 230 is sleeved on the transmission rod 220 and is in sliding fit with the transmission rod 220.

The acceleration of the motion of the transmission rod 220 relative to the first bracket 100 is a first acceleration, and the acceleration of the motion of the transmission block 230 relative to the first bracket 100 is a second acceleration. The first driving member 210 is connected to the driving rod 220 and drives the driving rod 220 to move, and for this reason, the greater the driving force of the first driving member 210 acting on the driving rod 220, the greater the first acceleration. In the case that the transmission rod 220 moves relative to the first bracket 100, the transmission block 230 may be driven to move relative to the first bracket 100. The driving block 230 may be slidably engaged with the driving rod 220, that is, the driving rod 220 and the driving block 230 are driven by friction force. Accordingly, the greater the friction between the driving block 230 and the driving rod 220, the greater the second acceleration. The actual friction between the driving block 230 and the driving rod 220 is less than or equal to the maximum static friction between the driving block 230 and the driving rod 220. Accordingly, the first acceleration may be made greater than or equal to the second acceleration by adjusting the driving force of the first driving member 210 acting on the driving lever 220. That is, under the action of the first driving member 210, the speed of the motion of the driving rod 220 relative to the first bracket 100 may be greater than or less than that of the driving block 230, so that the motion between the driving block 230 and the driving rod 220 may occur, that is, the motion of the driving block 230 relative to the driving rod 220 may be along the driving rod 220.

Referring to fig. 5 to 7, the first driving member 210 may drive the driving rod 220 to move in an axial direction of the driving rod 220. Specifically, in the case where it is required to drive the driving block 230 along the driving rod 220 to move toward the end far from the first driving member 210, the driving rod 220 and the driving block 230 may be driven by the first driving member 210 to move toward the end far from the first driving member 210 at an acceleration smaller than the second acceleration. When the transmission rod 220 moves to the maximum displacement, the transmission rod 220 is made to have acceleration towards the side close to the first driving member 210 by controlling the first driving member 210 to act on the transmission rod 220, and the acceleration of the transmission rod 220 is made to be larger than the acceleration of the transmission block 230, so that the speed of the transmission rod 220 and the speed of the transmission block 230 moving relative to the first bracket 100 are different, and the transmission block 230 moves relative to the transmission rod 220 in a direction away from the first driving member 210. Alternatively, the transmission rod 220 can move rapidly towards the direction approaching the first driving member 210 under the action of the first driving member 210, and the transmission block 230 still maintains the original moving direction under the action of inertia, i.e. moves towards the direction far away from the first driving member 210, so that the transmission rod 220 and the transmission block 230 move relatively. Referring to fig. 6 and 7, the above-described operation may be repeated a plurality of times to increase the distance the driving block 230 moves with respect to the driving lever 220, thereby increasing the angle of rotation of the camera assembly 500 with respect to the first bracket 100.

Similarly, when the driving block 230 is required to be driven to move along the driving rod 220 toward the end close to the first driving member 210, the driving rod 220 and the driving block 230 may be driven by the first driving member 210 to move toward the end close to the first driving member 210 at an acceleration smaller than the second acceleration. When the transmission rod 220 moves to the maximum displacement, the first driving member 210 is controlled, so that the first driving member 210 acts on the transmission rod 220, the transmission rod 220 generates acceleration to the side far away from the first driving member 210, the acceleration of the transmission rod 220 is larger than that of the transmission block 230, the speed of the transmission rod 220 moving relative to the first bracket 100 is different from that of the transmission block 230, and the transmission block 230 moves relative to the transmission rod 220 in the direction far away from the first driving member 210. Alternatively, the transmission rod 220 can move rapidly away from the first driving member 210 under the action of the first driving member 210, and the transmission block 230 still maintains the original moving direction under the action of inertia, i.e. moves towards the direction approaching the first driving member 210, so that the transmission rod 220 and the transmission block 230 move relatively. And the distance that the driving block 230 moves with respect to the driving rod 220 can be increased by repeating the above operation a plurality of times. Thereby increasing the angle of rotation of the camera assembly 500 relative to the first bracket 100.

In the above embodiment, the length of the transmission rod 220 can be effectively reduced by moving the transmission block 230 relative to the transmission rod 220, and the moving range of the transmission rod 220 relative to the first bracket 100 is reduced, which is beneficial to reducing the occupied space of the camera module.

Referring to fig. 1, the camera module may further include a second bracket 800, and the second bracket 800 may be disposed opposite to the first bracket 100. Specifically, an avoidance space is provided between the second bracket 800 and the first bracket 100 to provide an installation space and a movement space for the driving mechanism and the camera assembly 500. Specifically, the driving mechanism may be disposed between the first bracket 100 and the second bracket 800. Further, the first and

second brackets

100 and 800 may be support plates disposed parallel to each other. And the second bracket 800 is provided with a dodging opening so that the lens 510 in the camera assembly 500 can pass through the dodging opening.

Referring to fig. 1 and 2, the first driving member 210 may be fixedly disposed on the first bracket 100, a first end of the driving rod 220 is connected to the first driving member 210, and a second end of the driving rod 220 is slidably coupled to the second bracket 800. Optionally, the second bracket 800 is provided with a sliding hole or a sliding groove, and the transmission rod 220 is at least partially located in the sliding hole or the sliding groove, so that the transmission rod 220 can move along the sliding hole or the sliding groove relative to the second bracket 800, and the first bracket 100 and the second bracket 800 are respectively connected with two ends of the first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400, so that stability of the first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400 relative to the first bracket 100 can be improved, and further a continuous stable supporting force is provided for the camera assembly 500. Alternatively, the first bracket 100 may be a control circuit board, and the first driving mechanism 200, the second driving mechanism 300, and the third driving mechanism 400 may be connected to the first bracket 100, respectively.

Alternatively, in the case where the camera module is used in an electronic device, the second bracket 800 may be fixedly connected to a housing of the electronic device, so that the second bracket 800 may maintain stability of the second end of the driving rod 220. Of course, the second bracket 800 may also be fixedly connected to the first bracket 100. For this reason, the present embodiment does not limit the fixing manner of the second bracket 800.

The first bracket 100 may further include a guide rail 900, the guide rail 900 is disposed on the first bracket 100 and/or the second bracket 800, the driving block 230 is slidably matched with the guide rail 900, and the guide rail 900 may block the driving block 230 from rotating around the driving rod 220. Alternatively, the guide 900 may be provided with a square chute, and the driving block 230 may be provided with two opposite planes, so that the driving block 230 may be at least partially embedded in the square chute, and the driving block 230 may be limited to rotate relative to the driving rod 220 by the guide 900. In another alternative embodiment, one of the guide rail 900 and the driving block 230 is provided with a limiting protrusion, the other one is provided with a limiting groove, the limiting protrusion is at least partially embedded in the limiting groove, and the limiting protrusion is slidably matched with the limiting groove, so that the limiting protrusion and the limiting groove can block the driving block 230 from rotating relative to the driving rod 220.

Of course, in an alternative embodiment, the camera module may also be limited to the transmission block 230 by the transmission rod 220, so as to block the transmission block 230 from rotating relative to the transmission rod 220. Specifically, the transmission rod 220 may be configured as a square rod, the transmission block 230 is provided with a square hole, and the transmission block 230 is sleeved on the transmission rod 220, so that the transmission rod 220 may limit the transmission block 230 to rotate relative to the transmission rod 220. For this reason, the scheme of limiting the rotation of the driving block 230 with respect to the driving rod 220 is not particularly limited.

The first driving member 210 is a piezoelectric driver to drive the driving rod 220 by varying a voltage across the first driving member 210. Specifically, the first driving member 210 may be made of a piezoelectric material. There are many kinds of piezoelectric materials, for example: a piezoelectric ceramic material, a piezoelectric polymer, a piezoelectric crystal, etc., and for this reason, the specific material of the first driving member 210 is not specifically limited.

In the above embodiment, the first driving member 210 is made of a piezoelectric material. The camera module 500 is driven to rotate relative to the first bracket 100 by utilizing the deformation of the piezoelectric material, and has the advantages of high precision, large thrust and high response speed, and the camera module is free from generating a magnetic field and electromagnetic interference in the process of driving the camera module 500 by the first driving piece 210, does not generate heat, is favorable for heat dissipation of the camera module, and improves the stability of the camera module.

Optionally, the first drive mechanism 200, the second drive mechanism 300, and the third drive mechanism 400 each include a first electrical connection 250. The first electrical connector 250 is connected to the first driver 210 and provides power to the first driver 210. Alternatively, the first electrical connector 250 may be disposed on the first bracket 100. Alternatively, the first electrical connector 250 may be a flexible electrical connector, such as a flexible circuit board.

Referring to fig. 3, the camera module may further include a first magnetic member 600 and a magneto-resistive effect element 700, wherein one of the first magnetic member 600 and the magneto-resistive effect element 700 is disposed on the camera module 500, and the other is connected to the first bracket 100; the first magnetic element 600 is used for generating a magnetic field, and the magnetoresistance effect element 700 is located in the magnetic field generated by the first magnetic element 600, so that the position of the camera module 500 relative to the first bracket 100 is sensed by the first magnetic element 600 and the magnetoresistance effect element 700. Specifically, during the relative rotation of the camera module 500 with respect to the first bracket 100, the distance between the first magnetic element 600 and the magnetoresistance effect element 700 is increased or decreased, so that the magnetic field strength of the area where the magnetoresistance effect element 700 is located is changed, and the corresponding impedance value of the magnetoresistance effect element 700 is changed. Therefore, the deflection angle and the deflection direction of the camera module 500 relative to the first bracket 100 can be precisely determined by monitoring the magnitude of the resistance value corresponding to the magneto-resistive effect element 700 or the magnitude of the current passing through the magneto-resistive effect element 700 to reflect the position between the camera module 500 and the first bracket 100. Alternatively, the number of the first magnetic elements 600 and the magnetoresistance effect elements 700 may be plural, and the plurality of first magnetic elements 600 and the plurality of magnetoresistance effect elements 700 may be disposed along an edge of the camera module 500 near one end of the first bracket 100, so as to more accurately detect a direction and an angle of deflection of the camera module 500 relative to the first bracket 100.

Of course, there are many methods for detecting the direction or angle of deflection of the camera assembly 500 relative to the first bracket 100, for example, a gyroscope, an infrared detector, a hall device, etc. may also be utilized, and the embodiments herein are not limited to specific embodiments for detecting the direction or angle of deflection of the camera assembly 500 relative to the first bracket 100.

Referring to fig. 2 and 3, the camera assembly 500 includes a lens 510, a light sensing chip 520, a third bracket 530, and a second driving member. The third support 530 is a basic structural member, and provides a mounting base for the lens 510, the photosensitive chip 520, and the second driving member. Specifically, the lens 510, the photosensitive chip 520 and the second driving member are disposed on the third support 530, at least one of the lens 510, the photosensitive chip 520 and the photosensitive chip 520 is slidably matched with the third support 530, the second driving member is respectively connected with the lens 510 and the photosensitive chip 520, and the second driving member can drive the lens 510 and the photosensitive chip 520 to be far away from or close to each other, so as to realize adjustment of the focal length of the camera assembly 500 through the second driving member. The second driving piece can be an electromagnetic coil and a magnet, and can also be a driving motor, memory metal and the like. Optionally, the camera module 500 further includes a second electrical connector 540, where the second electrical connector 540 may be fixedly disposed on the third support 530, and the photosensitive chip 520 is disposed on the second electrical connector 540. Further, the first driving mechanism 200, the second driving mechanism 300 and the third driving mechanism 400 may be respectively in running fit with the third bracket 530, so as to drive the lens 510 and the photosensitive chip 520 to rotate synchronously with respect to the first bracket 100 by driving the third bracket 530, thereby avoiding the blurred edge of the image formed by the camera assembly 500 in the anti-shake motion process, and ensuring the imaging definition of the camera module under the shake condition.

Based on the camera module disclosed in the present application, an embodiment of the present application discloses an electronic device, which includes the camera module described in the above embodiment.

The electronic device disclosed in the embodiment of the application may be a mobile phone, a tablet computer, an electronic book reader, a medical instrument and the like, and the embodiment of the application is not limited to the specific type of the electronic device.

Based on the electronic equipment disclosed by the application, the embodiment of the application discloses a control method of the electronic equipment, and the method is suitable for the electronic equipment disclosed by the application. Specifically, the control method comprises the following steps:

step 101: under the condition that the electronic equipment is in a shooting mode, the shaking direction and the shaking angle of the electronic equipment are obtained;

specifically, the shake information includes a direction in which the electronic device shakes and a shake angle. Optionally, the direction and the shake angle of the shake of the electronic device are obtained through a gyroscope.

Step 102: according to the shaking direction and the shaking angle of the electronic equipment, the driving mechanism is controlled to move relative to the first bracket 100 respectively and drive the camera assembly 500 to rotate relative to the first bracket 100 in the opposite direction of the shaking of the electronic equipment, and the angle of the camera assembly 500 relative to the first bracket 100 is controlled to reduce the shaking of the camera assembly 500.

Specifically, the electronic device includes a control unit, where the control unit converts the shake information into execution information, where the execution information may be that, specifically, the control unit controls the driving mechanism to move relative to the first bracket 100, so that the camera assembly 500 may rotate relative to the first bracket 100 under the driving of the driving mechanism. And the rotation direction of the camera assembly 500 is opposite to the shake direction of the electronic device by controlling the movement direction of each driving mechanism relative to the first bracket 100, so as to achieve the purpose of reducing shake. Further, the rotation angle of the camera assembly 500 relative to the first bracket 100 can be controlled by controlling the displacement of each driving mechanism moving relative to the first bracket 100, so that the rotation angle of the camera assembly 500 relative to the first bracket 100 can be equal to the shake angle of the electronic device, and anti-shake shooting of the electronic device can be realized.

It should be noted that, in the shooting process of the electronic device, the camera assembly 500 is driven to shake due to shake of the electronic device, so that the shooting quality of the camera assembly 500 is reduced. Anti-shake motion described herein refers to: in the case where the electronic device performs photographing and the electronic device shakes, the camera assembly 500 moves in a direction opposite to the shake of the electronic device with respect to the first bracket 100.

It should be noted that, in this document, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one … …" does not exclude the presence of other like elements in a process, method, article, or apparatus that comprises the element. Furthermore, it should be noted that the scope of the methods and apparatus in the embodiments of the present application is not limited to performing the functions in the order shown or discussed, but may also include performing the functions in a substantially simultaneous manner or in an opposite order depending on the functions involved, e.g., the described methods may be performed in an order different from that described, and various steps may also be added, omitted, or combined. Additionally, features described with reference to certain examples may be combined in other examples.

The embodiments of the present application have been described above with reference to the accompanying drawings, but the present application is not limited to the above-described embodiments, which are merely illustrative and not restrictive, and many forms may be made by those of ordinary skill in the art without departing from the spirit of the present application and the scope of the claims, which are also within the protection of the present application.

Claims

1. A camera module is characterized by comprising a first bracket (100), a camera component (500) and at least three driving mechanisms,

the at least three driving mechanisms surround the light entering channel of the camera assembly (500), and are respectively in rotary fit with the side face of the camera assembly (500);

the driving mechanisms comprise a first driving piece (210), a transmission rod (220) and a transmission block (230), and the first end of the transmission rod (220) is in sliding fit with the first bracket (100); the first driving piece (210) is connected with the transmission rod (220), the first driving piece (210) drives the transmission rod (220) to move along the axial direction of the transmission rod (220), the transmission block (230) is in running fit with the camera assembly (500), the transmission block (230) is connected with the transmission rod (220), and the transmission rod (220) can drive the camera assembly (500) to rotate relative to the first bracket (100) through the transmission block (230);

the camera module further comprises a second bracket (800), the second bracket (800) is arranged opposite to the first bracket (100), and the second end of the transmission rod (220) is in sliding fit with the second bracket (800);

The camera module further comprises a guide rail (900), the guide rail (900) is arranged on the first bracket (100) and/or the second bracket (800),

the transmission block (230) is in sliding fit with the guide rail (900), the guide rail (900) can prevent the transmission block (230) from rotating around the transmission rod (220), and the transmission block (230) is in sliding fit with the transmission rod (220).

2. The camera module of claim 1, wherein the at least three drive mechanisms include a first drive mechanism (200), a second drive mechanism (300), and a third drive mechanism (400);

the first driving mechanism (200), the second driving mechanism (300) and the third driving mechanism (400) are uniformly distributed along the circumferential direction of the camera assembly (500).

3. The camera module of claim 1, wherein the drive mechanism further comprises a ball (240),

one of the transmission block (230) and the camera assembly (500) is provided with a spherical groove (550), and the other is connected with the ball (240); or, the transmission block (230) and the camera assembly (500) are provided with spherical grooves (550);

The ball (240) is at least partially located in the spherical recess (550), and the ball (240) is in rotational engagement with the spherical recess (550).

4. The camera module of claim 1, wherein a friction force between the drive block (230) and the drive rod (220) keeps the drive block (230) and the drive rod (220) relatively stationary with the drive rod (220) stationary with respect to the first bracket (100).

5. The camera module according to claim 1, wherein the first driving member (210) is fixedly disposed on the first bracket (100), and the first end of the transmission rod (220) is connected to the first driving member (210).

6. The camera module of claim 1, wherein the first driver (210) is a piezoelectric driver.

7. The camera module according to claim 1, further comprising a first magnetic element (600) and a magneto-resistive effect element (700), one of the first magnetic element (600) and the magneto-resistive effect element (700) being disposed in the camera assembly (500), the other being connected to the first bracket (100); the first magnetic element (600) is used for generating a magnetic field, and the magneto-resistance effect element (700) is positioned in the magnetic field generated by the first magnetic element (600).

8. The camera module of any one of claims 1 to 7, wherein the camera module (500) includes a lens (510), a photosensitive chip (520), a third bracket (530), and a second driving member, the lens (510), the photosensitive chip (520), and the second driving member are disposed on the third bracket (530), and at least one of the lens (510), the photosensitive chip (520), and the photosensitive chip (520) is slidably engaged with the third bracket (530),

the second driving piece is respectively connected with the lens (510) and the photosensitive chip (520), and can drive the lens (510) and the photosensitive chip (520) to be far away from or close to each other.

9. An electronic device comprising the camera module of any one of claims 1 to 8.

10. A control method of an electronic device, characterized by being applied to the electronic device of claim 9, the method comprising:

according to the shaking direction and the shaking angle of the electronic equipment, the driving mechanism is controlled to move relative to the first bracket (100) respectively and drive the camera assembly (500) to rotate relative to the first bracket (100) in the opposite direction of the shaking of the electronic equipment, and the angle of the camera assembly (500) relative to the first bracket (100) is controlled to reduce the shaking of the camera assembly (500).