CN217985166U - Motor, camera module and terminal equipment - Google Patents

Abstract

The utility model provides a motor, module and terminal equipment make a video recording belongs to the technical field of making a video recording. The motor includes a housing, a lens carrier, a first guide body, a first guide wall, a second guide body, a second guide wall, and a driving part. The lens carrier has a first corner and a second corner in diagonal positions. One of the first guide body and the first guide wall is located at the first corner, the other one of the first guide body and the first guide wall is located at the shell, the two first guide walls form an included angle, and the two first guide walls are all in contact with the first guide body. One of the second guide body and the second guide wall is located at the second corner, and the other is located at the housing, and the second guide wall is in contact with the second guide body. In the motor provided by the disclosure, the movement of the lens carrier is guided by the matching of the first guide body and the two first guide walls and the matching of the second guide body and the second guide wall, so that the limitation of the reed on the maximum movement stroke of the lens carrier is avoided, and the maximum movement stroke of the lens carrier can be increased.

Description

Motor, camera module and terminal equipment

Technical Field

The utility model relates to a technical field makes a video recording, in particular to motor, module and terminal equipment make a video recording.

Background

The camera module generally includes a lens and a motor, and the motor is used for driving the lens to move so as to realize the focusing function of the camera module.

A motor in the related art includes a housing, a lens carrier for carrying a lens and suspended in the housing by an upper spring and a lower spring, an upper spring, a lower spring, and a driving part. The driving part is used for driving the lens carrier to move, and the upper reed and the lower reed play a guiding role in the movement of the lens carrier.

However, the maximum moving stroke of the lens carrier cannot exceed the maximum deformation of the upper spring and the lower spring, so the deformation capability of the upper spring and the lower spring limits the moving stroke of the lens carrier.

SUMMERY OF THE UTILITY MODEL

The motor guides the movement of the lens carrier through the matching of the first guide bodies and the two first guide walls and the matching of the second guide bodies and the second guide walls, and the limitation of the reed on the maximum movement stroke of the lens carrier does not exist, so that the maximum movement stroke of the lens carrier can be increased. The technical scheme provided by the present disclosure is explained as follows:

in a first aspect, the present disclosure provides a motor including a housing, a lens carrier, a first guide body, a first guide wall, a second guide body, a second guide wall, and a driving part. The lens carrier is located inside the housing, and the lens carrier has a first corner and a second corner at diagonal positions. One of the first guide body and the first guide wall is located at a first corner of the lens carrier, the other one of the first guide body and the first guide wall is located on the shell, the number of the first guide walls is two, an included angle is formed between the two first guide walls, and the two first guide walls are in contact with the first guide body. One of the second guide body and the second guide wall is located at a second corner of the lens carrier, and the other is located at the housing, and the second guide wall is in contact with the second guide body. One of the first guide body and the second guide body is a guide shaft, the other one of the first guide body and the second guide body is a guide shaft or a guide ball, and the guide directions are all parallel to the central axis of the lens carrier. The driving component is used for driving the lens carrier to move along the central axis.

Among others, the motor provided by the present disclosure may be referred to as an Auto Focus (AF) motor.

The housing serves to protect and support the remaining components of the motor. In one possible implementation, the housing includes a base and a shell. The base may also be referred to as base. The first guide body and the first guide wall, and the second guide body and the second guide wall may be disposed between the base and the lens carrier.

The lens carrier is used for bearing the lens and driving the lens to move. The lens carrier may also be referred to as carrier. The lens carrier has a central axis which may coincide with the optical axis of the lens (an imaginary axis in the optical system, which is the center of rotation of the optical system). The first corner and the second corner are two corners of any opposite angles of the lens carrier.

The first guide body and the two first guide walls, and the second guide body and the first guide walls, for guiding the lens carrier to move along the central axis (optical axis). Two first guide walls are in contact with the first guide body, so that the fine positioning of the lens carrier is realized, and one second guide wall is in contact with the second guide body, so that the coarse positioning of the lens carrier is realized.

According to the technical scheme, the motor guides the lens carrier to move through the matching of the first guide body and the two first guide walls and the matching of the second guide body and the second guide walls, and the limitation of the reed on the maximum moving stroke of the lens carrier does not exist, so that the maximum moving stroke of the lens carrier can be increased. For example, the maximum moving stroke of the lens carrier may be increased by increasing the lengths of the first guide body and the second guide body.

Moreover, the motor provided by the present disclosure also has the following beneficial effects:

(1) When the driving member drives the lens carrier to move, the friction force between the first guide body and the first guide wall and the friction force between the second guide body and the second guide wall need to be overcome. The two friction forces are independent of the stroke position of the lens carrier, so that the situation that the lens carrier can move only by overcoming the great elasticity of the reed when the stroke of the lens carrier is larger does not exist, and the focusing actuating speed of the camera module is improved.

(2) Since friction exists between the first guide body and the second guide wall and between the second guide body and the second guide wall, when the lens carrier is required to be stabilized at the target position, the stabilization can be realized only by the friction, so that the driving part is not required to continuously output the driving force, and the power consumption of the motor is reduced.

On the other hand, if the frictional force itself is not sufficient to stabilize the lens carrier at the target position, the lens carrier can be stabilized at the target position by the driving force output from the driving part and the frictional force together, and thus, the value of the driving force is reduced and the power consumption of the motor can also be reduced.

(3) Because there is frictional force between first guide body and the second guide wall to and between second guide body and the second guide wall, so, when using the module of making a video recording to shoot in the motion process, under the effect of frictional force, the difficult emergence vibrations of camera lens carrier, this makes the module of making a video recording be difficult for appearing the phenomenon of losing focus, has improved the imaging quality.

In a possible implementation, the degree of the angle formed between two of the first guide walls is less than or equal to 90 °.

In a possible implementation, the first guide body is connected to the housing, and the first guide wall is located at a first corner of the lens carrier. The second guide body is connected with the shell, and the second guide wall is located at a second corner of the lens carrier.

In a possible implementation, the first guide body is connected to a first corner of the lens carrier, and the first guide wall is located on the housing. The second guide body is connected with a second corner of the lens carrier, and the second guide wall is located on the shell.

In a possible implementation, the first guide body is connected to the housing, and the first guide wall is located at a first corner of the lens carrier. The second guide body is connected with a second corner of the lens carrier, and the second guide wall is located on the shell.

In a possible implementation, the first guide body is connected to a first corner of the lens carrier, and the first guide wall is located on the housing. The second guide body is connected with the shell, and the second guide wall is located at a second corner of the lens carrier.

In one possible implementation, the first guide body and the second guide body are both guide shafts.

The technical scheme that this disclosure provided is the guiding axle through setting up first guide body and second guide body, compares with the direction ball, and mounting process is simpler, and the cost is lower, and the reliability is higher.

Further, since the guide shaft and the guide wall are in linear contact and sliding friction, and the guide ball and the guide wall are in point contact and rolling friction, the first guide body and the second guide body are both provided as guide shafts, and the friction force between the first guide body and the two first guide walls and between the second guide body and the second guide wall can be increased. Therefore, the lens carrier is more easily stabilized at the target position by friction, and the power consumption of the motor is reduced. And when using the module of making a video recording to shoot in the motion process, the camera lens carrier is difficult to take place vibrations more, is favorable to improving the formation of image quality of the module of making a video recording.

In one possible implementation, one of the first guide body and the second guide body is a guide shaft, and the other is a guide ball.

The technical scheme that this disclosure provides leads through using the direction ball for the contact of guide body and guide wall is point contact and rolling friction, compares in the guiding axle, has further reduced frictional force, provides more favorable condition for the quick response of camera lens.

In one possible implementation, a line between the first guide body and the second guide body intersects with a central axis of the lens carrier.

And the connecting line is intersected with the central axis of the first guide body and the central axis of the second guide body.

According to the technical scheme, the force borne by the lens carrier is gravity, friction force between the first guide body and the two first guide walls, and friction force and driving force between the second guide body and the second guide walls. Wherein the center of gravity is substantially located on a central axis of the lens carrier, and the driving force is symmetrical about the central axis of the lens carrier.

Through setting up the line between first guide body and the second guide body and crossing with the axis of camera lens carrier for two frictional forces that the camera lens carrier received also are roughly symmetrical about the axis, thereby, make the atress of camera lens carrier more even, are favorable to maintaining the gradient (tilt) of camera lens carrier at a less value. The inclination refers to an included angle between a central axis of the lens carrier and a central axis of the base.

In a possible implementation manner, a first corner of the housing or the lens carrier has a first guide groove, a cross section of the first guide groove is V-shaped, and two side walls of the first guide groove form two first guide walls.

Wherein, the first guide groove can also be called as V-shaped groove. The cross section of the first guide groove refers to a section perpendicular to the central axis of the lens carrier.

In a possible implementation, the first corner of the lens carrier has the first guide groove.

In a possible implementation manner, the housing has a guide protrusion, the second corner of the lens carrier has a second guide groove, and the guide protrusion extends into the second guide groove. One of two walls of the guide projection and the second guide groove opposite to each other is connected to the second guide body, and the other wall forms the second guide wall.

Wherein the second guide groove may also be referred to as a U-shaped groove.

In a possible implementation, the guide protrusion is connected to the second guide body, and a side wall of the second guide groove forms the second guide wall.

In a possible implementation manner, the first guide body is a guide shaft, each first guide wall sequentially includes a first contact portion, a first recess portion, and a second contact portion along an axial direction of the first guide body, and the first contact portion and the second contact portion are both in contact with the first guide body.

This technical scheme that provides through the mid portion recess that sets up first guide wall for the fitting surface of first guide wall and first guide body is first contact part and the second contact part of separation, and not whole first guide wall.

Therefore, one large-area matching surface is converted into two separated small-area matching surfaces, and the processing difficulty of the matching surfaces is reduced. And secondly, the condition that the shaft holding length is very short under the condition that the planeness of the matching surface is poor and the middle part of the first guide wall is locally convex is avoided (the shaft holding length is equal to the width of the middle part of the first guide wall which is locally convex). The throw-away length is understood to be the distance between the upper and lower boundaries of the first guide wall in contact with the first guide body.

It is understood that even if the first contact portion or the second contact portion is partially protruded, the first guide body can be in contact with both the first contact portion and the second contact portion, so that the axle-embracing length is not too short, at least larger than the width of the first recess portion. Further, since the first contact portion and the second contact portion have small areas, the possibility of occurrence of a local protrusion phenomenon is low.

In a possible implementation manner, the second guiding body is a guiding shaft, the second guiding wall sequentially includes a second concave portion, a third contact portion and a third concave portion along an axial direction of the second guiding body, and the third contact portion is in contact with the second guiding body.

The technical scheme that this disclosure provided is through setting up the third contact site protrusion in the middle of the second guide wall for three planes of first contact site, second contact site and third contact site have realized the spacing to the lens carrier jointly. And, through making the both ends of second guiding wall sunken, reduced the area of fitting surface, reduced the processing degree of difficulty of fitting surface, be favorable to improving the plane degree of fitting surface.

In a possible implementation manner, the direction of the acting force of the two first guide walls on the first guide body is a first direction, and the direction of the acting force of the second guide wall on the second guide body is a second direction. The first direction and the second direction are parallel and in the same direction, or an included angle between the first direction and the second direction is smaller than or equal to 90 degrees.

The technical scheme that this disclosure provided, through setting up first direction and second direction parallel and syntropy, perhaps, contained angle between first direction and the second direction is less than or equal to 90 for the inseparable laminating of two first guide walls and first guide body, and the inseparable laminating of second guide wall and second guide body can realize simultaneously, has guaranteed the reliability of direction.

In a possible implementation, the angle between the first direction and the second direction is less than 90 °.

In one possible implementation, the first direction and the second direction are perpendicular to the same side of the housing.

In a possible implementation manner, the first guide body and the two first guide walls, and the second guide body and the second guide wall are tightly attached under the action of magnetic attraction.

In one possible implementation, the generation position of the magnetic attraction force is located at the first corner.

In a possible implementation manner, the magnetic attraction force is generated at two positions, one is located at the first corner, and the other is located at the second corner.

In one possible implementation, the housing has a first magnetic member, and the lens carrier has a second magnetic member. The first magnetic member is opposite to the second magnetic member, and the magnetic attraction force, or a part of the magnetic attraction force, is generated between the first magnetic member and the second magnetic member.

In one possible implementation manner, the first magnetic member is a magnet, and the second magnetic member is a magnetic conductive plate.

Wherein, the magnetic conduction plate is a metal plate made of magnetic conduction materials.

In one possible implementation, a direction of a magnetic attraction force between the first magnetic member and the second magnetic member is parallel to the first direction.

The technical scheme that this disclosure provided, through setting up the magnetic attraction direction between first magnetic part and the second magnetic part and be parallel with first direction, can make first guide body and two first guide walls closely laminate. And because first direction and second direction are parallel, or the contained angle is less than 90, so, the magnetic attraction between first magnetic part and the second magnetic part also can play the effect that makes second guide body and second guide wall closely laminate.

In a possible implementation manner, the first guide body is made of a magnetic conductive material, and the housing or the lens carrier where the first guide wall is located is provided with a third magnetic part. The third magnetic member is opposite to the first guide body, and the magnetic attraction force, or a part of the magnetic attraction force, is generated between the third magnetic member and the first guide body.

In a possible implementation manner, a direction of the magnetic attraction between the third magnetic member and the first guide body coincides with the first direction.

This technical scheme that provides through setting up magnetic attraction direction and the coincidence of first direction between third magnetic part and the first guide body, can make first guide body and two first guide walls closely laminate. And because the first direction is parallel to the second direction, or the included angle is less than 90 degrees, the third magnetic part and the first guide body can also play a role in enabling the second guide body and the second guide wall to be tightly attached.

In a possible implementation manner, the second guide body is made of a magnetic conductive material, and the housing or the lens carrier where the second guide wall is located is provided with a fourth magnetic part. The fourth magnetic part is opposite to the second guide body, and the magnetic attraction force is generated between the fourth magnetic part and the second guide body, or a part of the magnetic attraction force.

In a possible implementation manner, a direction of a magnetic attraction force between the fourth magnetic member and the second guiding body coincides with the second direction.

The technical scheme that this disclosure provided through magnetic attraction direction and the coincidence of second direction that sets up between fourth magnetic part and the second guide body, can make second guide body and the inseparable laminating of second guide wall. And because the first direction is parallel to the second direction, or the included angle is less than 90 degrees, the fourth magnetic part and the second guide body can also play a role in enabling the first guide body to be tightly attached to the two first guide walls.

In one possible implementation, the driving member is an electromagnetic driving member, a Shape Memory Alloy (SMA) driving member, or a piezoelectric driving member.

The electromagnetic driving component may be a Voice Coil Motor (VCM), and the piezoelectric driving component may be a piezoelectric ceramic driving component.

In one possible implementation, the drive component includes a drive magnet and a drive coil. The number of the drive magnets is four, and the four drive magnets are fixedly connected with the shell. The number of the driving coils is four, and the four driving coils are respectively fixedly connected with the four side walls of the lens carrier and are respectively opposite to the four driving magnets.

The technical scheme that this disclosure provided is four through setting up drive coil and drive magnetite, and four drive coils respectively with four lateral walls fixed connection of camera lens carrier for the atress of camera lens carrier is more even, can reduce the gradient of camera lens carrier.

In a second aspect, the present disclosure provides a camera module comprising the motor according to any one of the first aspect and a lens, wherein the lens is fixed on a lens carrier of the motor.

In a third aspect, the present disclosure provides a terminal device having the camera module according to the second aspect.

In a possible implementation manner, the terminal device is a mobile phone or a tablet computer.

Drawings

FIG. 1 is a schematic view of a motor provided in the present common embodiment;

fig. 2 is a schematic view of an internal structure of a motor according to an embodiment of the present disclosure;

fig. 3 is a schematic view of an internal structure of a motor according to an embodiment of the present disclosure;

fig. 4 is a schematic view of an internal structure of a motor provided in the embodiment of the present disclosure;

fig. 5 is a schematic view of an internal structure of a motor provided in an embodiment of the present disclosure;

fig. 6 is a schematic view of an internal structure of a motor provided in an embodiment of the present disclosure;

FIG. 7 is a schematic diagram of a combination of types and positions of guide bodies provided by embodiments of the present disclosure;

FIG. 8 is a top view of a motor provided by embodiments of the present disclosure;

FIG. 9 is a side view of a motor provided by embodiments of the present disclosure;

fig. 10 is a schematic view of a lens carrier provided in an embodiment of the disclosure;

FIG. 11 is a schematic view of a first guide wall provided by embodiments of the present disclosure;

FIG. 12 is a schematic view of a second guide wall provided by embodiments of the present disclosure;

FIG. 13 is a top view of a motor provided by embodiments of the present disclosure;

FIG. 14 is a top view of a motor provided by embodiments of the present disclosure;

FIG. 15 is a top view of a motor provided by embodiments of the present disclosure;

fig. 16 is a schematic view of a driving manner of a motor provided in the embodiment of the present disclosure;

fig. 17 is a schematic view of a driving manner of a motor according to an embodiment of the disclosure;

fig. 18 is a schematic view of a driving manner of a motor according to an embodiment of the present disclosure;

FIG. 19 is an exploded view of a motor provided by embodiments of the present disclosure;

FIG. 20 is a schematic view of a driver magnet according to an embodiment of the present disclosure;

fig. 21 is a schematic diagram of a circuit board according to an embodiment of the present disclosure.

Description of the figures

1. A shell body 11, a base 12 and a shell;

2. a lens carrier 21, an induction magnet;

3. a first guide body;

4. a first guide groove 41, a first guide wall 411, a first contact portion 412, a first recess portion 413, a second contact portion;

5. a second guide body;

6a, a guide protrusion, 6b, a second guide groove, 61, a second guide wall, 611, a second recess, 612, a third contact, 613, a third recess;

7. a drive member 71, a drive magnet 711, a magnet 712, a yoke plate 72, and a drive coil;

8. circuit board, 81, integrated circuit;

9. a power supply reed;

A. a first corner, B, a second corner;

x, a first direction, Y, a second direction;

a. the magnetic device comprises a first magnetic part, a second magnetic part, a third magnetic part, a fourth magnetic part and a third magnetic part.

Detailed Description

In recent years, the requirements for the photographing performance of terminal devices such as mobile phones are increasing, and higher requirements for camera modules of the terminal devices are being made.

The camera module comprises a lens and a motor, and the motor is used for driving the lens to move so as to realize the focusing function of the camera module. A motor in the related art includes a housing, a lens carrier, an upper spring, a lower spring, and a driving part, and the lens carrier is used to carry a lens and is suspended in the housing by the upper spring and the lower spring. The driving part is used for driving the lens carrier to move, and the upper reed and the lower reed play a guiding role in the movement of the lens carrier.

However, the motor (reed motor) in the related art has at least the following technical problems:

(1) The maximum moving stroke of the lens carrier can not exceed the maximum deformation of the upper reed and the lower reed, so the deformation capacity of the upper reed and the lower reed limits the maximum moving stroke of the lens carrier.

(2) When the stroke position of the lens carrier is larger, the elasticity applied to the lens carrier by the upper spring leaf and the lower spring leaf is also larger, and the lens carrier can move only by overcoming the larger elasticity, so that the focusing actuation speed of the camera module is lower.

(3) When the lens carrier is required to be stabilized at the target position, the driving part needs to continuously output the driving force in order to balance the elastic force applied to the lens carrier by the upper spring and the lower spring, which makes the power consumption of the motor large.

(4) When using the module of making a video recording to shoot at the motion in-process, because there is elasticity in last reed and lower reed, so, the camera lens carrier can drive the camera lens and take place vibrations, and this can make the module of making a video recording appear the phenomenon of losing focus, influences the formation of image quality.

In view of the above technical problems, the embodiments of the present disclosure provide a motor, which can solve at least part of the above problems, and the motor provided by the embodiments of the present disclosure is exemplarily described below:

as shown in fig. 1 to 6, the motor provided by the embodiment of the present disclosure includes a housing 1, a lens carrier 2, a first guide body 3, a first guide wall 41, a second guide body 5, a second guide wall 61, and a driving part 7. The lens carrier 2 is located inside the housing 1, the lens carrier 2 having a first corner a and a second corner B in diagonal positions. One of the first guide body 3 and the first guide wall 41 is located at a first corner a of the lens carrier 2, the other one is located in the housing 1, the number of the first guide walls 41 is two, an included angle is formed between the two first guide walls 41, and the two first guide walls are both in contact with the first guide body 3. One of the second guide body 5 and the second guide wall 61 is located at the second corner B of the lens carrier 2, and the other is located in the housing 1, and the second guide wall 61 is in contact with the second guide body 5. One of the first guide body 3 and the second guide body 5 is a guide shaft, and the other is a guide shaft or a guide ball, and the guide directions are parallel to the central axis of the lens carrier 2. The driving member 7 is used to drive the lens carrier 2 to move along the central axis.

Among them, the motor provided by the embodiments of the present disclosure may be referred to as an Auto Focus (AF) motor.

The housing 1 serves to protect and support the remaining components of the motor. In some examples, as shown in fig. 1, the housing 1 includes a base 11 and a shell 12. The base 11 may also be referred to as base. The first guide body 3 and the first guide wall 41, and the second guide body 5 and the second guide wall 61 may be provided between the base 11 and the lens carrier 2.

The lens carrier 2 is used for carrying the lens and driving the lens to move. The lens carrier 2 may also be called carrier. The lens carrier 2 has a central axis which can coincide with the optical axis of the lens (an imaginary axis in the optical system, which is the center of rotation of the optical system). The first corner a and the second corner B are two corners of the lens carrier 2 at any opposite corners.

The cooperation of the first guide body 3 and the two first guide walls 41, and the cooperation of the second guide body 5 and the first guide wall 61, serve to guide the lens carrier 2 to move along the central axis (optical axis). Two first guide walls 41 are in contact with the first guide body 3, which enables a fine positioning of the lens carrier 2, and one second guide wall 61 is in contact with the second guide body 5, which enables a coarse positioning of the lens carrier 2.

According to the technical scheme provided by the embodiment of the disclosure, the motor guides the movement of the lens carrier 2 through the matching of the first guide body 3 and the two first guide walls 41 and the matching of the second guide body 5 and the second guide wall 61, and the limitation of the reed on the maximum moving stroke of the lens carrier 2 does not exist, so that the maximum moving stroke of the lens carrier 2 can be increased. For example, the maximum moving stroke of the lens carrier 2 may be increased by increasing the lengths of the first guide body 3 and the second guide body 5.

Moreover, compared with the reed-type motor in the related art, the motor provided by the embodiment of the disclosure has the following beneficial effects:

(1) When the driving member 7 drives the lens carrier 2 to move, the friction force between the first guide body 3 and the first guide wall 41 and the friction force between the second guide body 5 and the second guide wall 61 need to be overcome. The two friction forces are independent of the stroke position of the lens carrier 2, so that the situation that the lens carrier 2 can move only by overcoming the large elastic force of the reed when the stroke of the lens carrier 2 is large does not exist, and the focusing actuating speed of the camera module is improved.

(2) Since there are frictional forces between the first guide body 3 and the second guide wall 41, and between the second guide body 5 and the second guide wall 61, when it is required that the lens carrier 2 is stabilized at the target position, it can be realized only by the frictional force, and thus, the driving part 7 does not need to continuously output the driving force, reducing the power consumption of the motor.

On the other hand, if the frictional force itself is not sufficient to stabilize the lens carrier 2 at the target position, the lens carrier 2 can be stabilized at the target position by the driving force output from the driving part 7 together with the frictional force. The value of the driving force is reduced compared to the related art in which only the driving force is used and the driving force is also required to overcome the elastic force of the spring, and thus, the power consumption of the motor can also be reduced.

(3) Because there is frictional force between first guide body 3 and the second guide wall 41 to and between second guide body 5 and the second guide wall 61, so, when using the module of making a video recording to shoot in the motion process, under the effect of frictional force, the difficult vibrations that take place of lens carrier 2, this makes the module of making a video recording be difficult for appearing the phenomenon of losing focus, has improved the formation of image quality.

The disclosed embodiment does not limit the positions of the first guide body 3 and the second guide body 5, and the following description is given by way of example:

in some examples, as shown in fig. 2, 5 and 6, the first guide body 3 is connected to the housing 1, and the first guide wall 41 is located at a first corner a of the lens carrier 2. The second guide body 5 is connected to the housing 1, and the second guide wall 61 is located at a second corner B of the lens carrier 2.

In some examples, as shown in fig. 3 and 4, the first guide body 3 is connected to the first corner a of the lens carrier 2, and the first guide wall 41 is located at the housing 1. The second guide body 5 is connected to a second corner B of the lens carrier 2, and the second guide wall 61 is located in the housing 1.

In some examples, the first guide body 3 is connected to the housing 1, and the first guide wall 41 is located at a first corner a of the lens carrier 2. The second guide body 5 is connected to a second corner B of the lens carrier 2, and the second guide wall 61 is located in the housing 1 (not shown).

In some examples, the first guide body 3 is connected to a first corner a of the lens carrier 2, and the first guide wall 41 is located at the housing 1. The second guide body 5 is connected to the housing 1, and the second guide wall 61 is located at a second corner B (not shown) of the lens carrier 2.

The embodiment of the present disclosure does not limit the types of the first guide body 3 and the second guide body 5, and the following description is made by way of example:

in some examples, as shown in fig. 2-4, the first guide body 3 and the second guide body 5 are both guide shafts.

The technical scheme that this disclosure embodiment provided is the guiding axle through setting up first guide body 3 and second guide body 5, compares with the direction ball, and mounting process is simpler, and the cost is lower, and the reliability is higher.

Further, since the guide shaft and the guide wall are in linear contact and sliding friction, and the guide ball and the guide wall are in point contact and rolling friction, providing both the first guide body 3 and the second guide body 5 as the guide shaft can increase the frictional force between the first guide body 3 and the two first guide walls 41, and between the second guide body 5 and the second guide wall 61. Thus, the lens carrier 2 is more easily stabilized at the target position only by the frictional force, reducing the power consumption of the motor. And when using the module of making a video recording to shoot in the motion process, the camera lens carrier 2 is difficult to take place vibrations more, is favorable to improving the formation of image quality of the module of making a video recording.

In some examples, as shown in fig. 5, the first guiding body 3 is a guiding shaft and the second guiding body 5 is a guiding ball.

In some examples, as shown in fig. 6, the first guide body 3 is a guide ball and the second guide body 5 is a guide shaft.

According to the technical scheme, the guide ball is used for guiding, so that the contact between the guide body and the guide wall is point contact and rolling friction, and compared with a guide shaft, the friction force is further reduced, and more favorable conditions are provided for quick response of the lens.

In conjunction with the above description of the positions and types of the first guide body 3 and the second guide body 5, in particular, the motor provided in the embodiment of the present disclosure may have twelve configurations as shown in fig. 7, and the following description is respectively exemplary:

first, two first guide walls 41 are disposed at a first corner a of the lens carrier 2, and a second guide wall 61 is disposed at a second corner B. The base 11 is provided with a guide shaft corresponding to the first corner A and a guide shaft corresponding to the second corner B.

Second, the first corner a of the lens carrier 2 is provided with two first guide walls 41, and the second corner B is provided with a second guide wall 61. The base 11 is provided with a guide shaft corresponding to the position of the first corner A and a guide ball corresponding to the position of the second corner B.

Thirdly, the first corner a of the lens carrier 2 is provided with two first guide walls 41 and the second corner B is provided with a second guide wall 61. The base 11 is provided with a guide ball corresponding to the position of the first corner A and a guide shaft corresponding to the position of the second corner B.

In the above first to third aspects, the two first guide walls 41 and the second guide wall 61 are both located on the lens carrier 2.

Fourth, a guide shaft is provided at a first corner a of the lens carrier 2, and a guide shaft is provided at a second corner B. The base 11 is provided with two first guide walls 41 corresponding to the first corner a and a second guide wall 61 corresponding to the second corner B.

Fifth, a guide shaft is provided at a first corner a of the lens carrier 2, and a guide ball is provided at a second corner B. The base 11 is provided with two first guide walls 41 corresponding to the first corner a and a second guide wall 61 corresponding to the second corner B.

Sixthly, a guide ball is arranged at the first corner A of the lens carrier 2, and a guide shaft is arranged at the second corner B. The base 11 is provided with two first guide walls 41 corresponding to the first corner a and a second guide wall 61 corresponding to the second corner B.

In the above fourth to sixth solutions, the two first guide walls 41 and the second guide wall 61 are located on the base 11.

Seventh, the first corner a of the lens carrier 2 is provided with two first guiding walls 41, and the second corner B is provided with a guiding axis. The base 11 is provided with a guide shaft corresponding to the first corner A, and a second guide wall 61 corresponding to the second corner B.

In the eighth mode, two first guide walls 41 are disposed at the first corner a and two guide balls are disposed at the second corner B of the lens carrier 2. The base 11 is provided with a guide shaft corresponding to the first corner A, and a second guide wall 61 corresponding to the second corner B.

Ninth, the first corner a of the lens carrier 2 is provided with two first guide walls 41, and the second corner B is provided with a guide axis. The base 11 is provided with a guiding ball corresponding to the first corner A, and a second guiding wall 61 corresponding to the second corner B.

In the above seventh to ninth aspects, the two first guide walls 41 are located on the lens carrier 2, and the second guide wall 61 is located on the base 11.

Tenth, the first corner a of the lens carrier 2 is provided with a guide shaft, and the second corner B is provided with a second guide wall 61. The base 11 is provided with two first guide walls 41 corresponding to the first corner a and a guide shaft corresponding to the second corner B.

Eleventh, the lens carrier 2 is provided with a guide ball at a first corner a and a second guide wall 61 at a second corner B. The base 11 is provided with two first guide walls 41 corresponding to the first corner a and a guide shaft corresponding to the second corner B.

Twelfth, the first corner a of the lens carrier 2 is provided with a guide shaft, and the second corner B is provided with a second guide wall 61. The base 11 is provided with two first guide walls 41 corresponding to the first corner a and guide balls corresponding to the second corner B.

In the above tenth to twelfth aspects, the two first guide walls 41 are located on the base 11, and the second guide wall 61 is located on the lens carrier 2.

In some examples, as shown in fig. 8, a line connecting the first guide body 3 and the second guide body 5 intersects with a central axis of the lens carrier 2.

Wherein the connecting line intersects the central axis of the first guiding body 3 and the central axis of the second guiding body 5.

In the technical solution provided by the embodiment of the present disclosure, as shown in fig. 9, the force applied to the lens carrier 2 is gravity, a friction force between the first guide body 3 and the two first guide walls 41, a friction force between the second guide body 5 and the second guide wall 61, and a driving force. Wherein the center of gravity is located substantially on the central axis of the lens carrier 2. Generally, the driving force is symmetrical about the central axis of the lens carrier 2, for example, the driving member 7 is connected to two opposite sidewalls of the lens carrier 2, and the two driving forces applied to the lens carrier 2 are symmetrical about the central axis.

And through setting up the line between first guide body 3 and the second guide body 5 and crossing with the axis of camera lens carrier 2, make two frictional forces that camera lens carrier 2 received also roughly symmetrical about the axis, thereby, make the atress of camera lens carrier 2 more even, be favorable to keeping the gradient (tilt) of camera lens carrier 2 at a less value. Wherein, the inclination is an included angle between a central axis of the lens carrier 2 and a central axis of the base 11.

As shown in fig. 9, the projections of the two friction positions, the driving force position, and the gravity position received by the lens carrier 2 on the plane perpendicular to the central axis are arranged in a central symmetry manner along the central axis (or called as forming a central symmetry pattern).

The embodiment of the present disclosure does not limit the forming manner of the first guide wall 41 and the second guide wall 61, and the following description is given by way of example:

in some examples, the housing 1 has a first guide groove 4 as shown in fig. 3 and 4, or the first corner a of the lens carrier 2 has a first guide groove 4 as shown in fig. 2, 5 and 6. The cross section of the first guide groove 4 is V-shaped, and two side walls of the first guide groove 4 form two first guide walls 41.

The first guide groove 4 may also be referred to as a V-groove. The cross section of the first guide groove 4 refers to a section perpendicular to the central axis of the lens carrier 32.

In some examples, as shown in fig. 2 to 6, the housing 1 has a guide protrusion 6a, the second corner B of the lens carrier 2 has a second guide groove 6B, and the guide protrusion 6a protrudes into the inside of the second guide groove 6B. One of two walls of the guide projection 6a and the second guide groove 6b facing each other is connected to the second guide body 5, and the other forms a second guide wall 61.

For example, as shown in fig. 2, 5 and 6, one wall of the guide projection 6a is connected to the second guide body 5, and the second guide groove 6b forms a second guide wall 61 with the wall opposite to the second guide body 5. The second guide wall 61 may be a side wall of the second guide groove 6b (as shown in fig. 2, 5 and 6), or may be a bottom wall (i.e., a groove bottom) of the second guide groove 6b, which is not limited in the embodiment of the disclosure.

For another example, as shown in fig. 3 and 4, one wall of the second guide groove 6b is connected to the second guide body 5, and the wall of the guide projection 6a opposite to the second guide body 5 forms a second guide wall 61. As shown in fig. 3 and 4, the second guide wall 61 may be a side wall of the guide projection 6a, or may be an end wall of the guide projection 6a (i.e., a wall opposite to the groove bottom of the second guide groove 6 b).

It should be noted that the cross section of the second guiding groove 6b may be U-shaped, and the U-shape may be a more standard U-shape (as shown in fig. 2, 3, 5 and 6) or an open U-shape (as shown in fig. 4). The second guide groove 6b may also be referred to as a U-shaped groove.

Next, the forms of the first guide wall 41 and the second guide wall 61 are exemplarily described:

in some examples, as shown in fig. 10 and 11, the first guide body 3 is a guide shaft, each first guide wall 41 includes a first contact portion 411, a first recess portion 412, and a second contact portion 413 in order in the axial direction of the first guide body 3, and each of the first contact portion 411 and the second contact portion 413 is in contact with the first guide body 3.

The embodiment of the present disclosure provides a technical solution, by providing a recess in the middle portion of the first guide wall 41, the mating surfaces of the first guide wall 41 and the first guide body 3 are the separated first contact portion 411 and the second contact portion 413, rather than the entire first guide wall 41.

Therefore, one large-area matching surface is converted into two separated small-area matching surfaces, and the processing difficulty of the matching surfaces is reduced. Secondly, the situation that the length of the axle is short (the length of the axle is equal to the width of the middle part of the first guide wall 41 which is partially protruded) is avoided under the situation that the flatness of the matching surface is poor and the middle part of the first guide wall 41 is partially protruded. The throw length is understood to mean the distance between the upper and lower boundaries of the first guide wall 41 in contact with the first guide body 3.

It will be appreciated that, with the solution shown in fig. 11, even if the first contact portion 411 or the second contact portion 413 is partially convex, the first guide body 3 can still be in contact with both the first contact portion 411 and the second contact portion 413, so that the throw length is not too short, at least larger than the width of the first recess 412. Further, since the areas of the first contact portion 411 and the second contact portion 413 are small, the possibility of occurrence of the phenomenon of local protrusion is low.

Of course, in other examples, the first guide wall 41 provided in the embodiments of the present disclosure may also be an integral mating surface, which is not limited by the embodiments of the present disclosure.

In some examples, as shown in fig. 10 and 12, the second guide body 5 is a guide shaft, the second guide wall 61 includes a second recess 611, a third contact portion 612, and a third recess 613 in the axial direction of the second guide body 5 in this order, and the third contact portion 612 is in contact with the second guide body 5.

According to the technical scheme provided by the embodiment of the disclosure, the third contact part 612 arranged in the middle of the second guide wall 61 is protruded, so that the first contact part 411, the second contact part 413 and the third contact part 612 form three planes, and the lens carrier 2 is limited.

Moreover, the two ends of the second guide wall 61 are recessed, so that the area of the matching surface is reduced, the processing difficulty of the matching surface is reduced, and the flatness of the matching surface is improved.

In the following, the bearing direction of the two first guide walls 41 and the bearing direction of the second guide wall 61 are exemplarily explained:

the bearing direction of the two first guide walls 41 can be understood as the direction of the force of the two first guide walls 41 on the first guide body 3, or as the direction to which the angle bisector of the included angle formed by the two first guide walls 41 is directed. For convenience of description, the bearing direction of the two first guide walls 41 is defined as a first direction X.

The bearing direction of the second guide wall 61 can be understood as the direction of the force of the second guide wall 61 on the second guide body 5, or as the orientation of the second guide wall 61, or as the normal direction of the plane of the second guide wall 61. For convenience of description, the bearing direction of the second guide wall 61 is defined as a second direction Y.

In order to ensure the reliability of the guiding, the close fitting of the two first guiding walls 41 to the first guiding body 3 and the close fitting of the second guiding wall 61 to the second guiding body 5 can be simultaneously achieved, and in some examples, as shown in fig. 13 and 15, the first direction X and the second direction Y are parallel and in the same direction. Alternatively, as shown in fig. 14, the angle between the first direction X and the second direction Y is less than or equal to 90 °.

It is understood that if the first direction X and the second direction Y are reversed, the second guide wall 61 may need to be away from the second guide body 5 in order to make the two first guide walls 41 closely fit to the first guide body 3, and the two first guide walls 41 may need to be away from the first guide body 3 in order to make the second guide wall 61 closely fit to the second guide body 5. That is, if the first direction X and the second direction Y are reversed, the close fitting of the two first guide walls 41 to the first guide body 3 and the close fitting of the second guide wall 61 to the second guide body 5 cannot be simultaneously achieved.

The specific orientations of the first direction X and the second direction Y are not limited in the embodiments of the present disclosure, and in some examples, as shown in fig. 13, the first direction X and the second direction Y are perpendicular to the same sidewall of the housing 1.

Of course, the first direction X and the second direction Y may also be at any angle with respect to a side wall of the motor, as shown in fig. 14 and 15, which is not limited in the embodiments of the disclosure.

In some examples, the first guide body 3 and the two first guide walls 41, and the second guide body 5 and the second guide wall 61, are closely attached under the magnetic attraction force.

The position where the magnetic attraction force is generated is not limited in the embodiments of the present disclosure, and in some examples, as shown in fig. 13, the position where the magnetic attraction force is generated is located at the first angle a.

Wherein, at the first corner A, a magnetic attraction force is generated between the first magnetic piece a and the second magnetic piece b.

In other examples, as shown in fig. 14 and 15, the magnetic attraction force is generated at two positions, one at the first corner a and the other at the second corner B.

In fig. 14, a magnetic attraction force is generated between the first magnetic member a and the second magnetic member B at the first corner a, and a magnetic attraction force is generated between the fourth magnetic member d and the second guide body 5 at the second corner B. In fig. 15, a magnetic attraction force is generated between the third magnetic member c and the first guide body 3 at the first corner a, and a magnetic attraction force is generated between the fourth magnetic member d and the second guide body 5 at the second corner B.

In the following, several possible implementations of the magnetic attraction generation are provided:

in some examples, as shown in fig. 13 and 14, the housing 1 (mount 11) has a first magnetic member a, and the lens carrier 2 has a second magnetic member b, the first magnetic member a being opposite to the second magnetic member b.

In some examples, as shown in fig. 13 and 14, the direction of the magnetic attraction force between the first magnetic member a and the second magnetic member b is parallel to the first direction X, so that the first guide body 3 can be brought into close contact with the two first guide walls 41. And because the first direction X and the second direction Y are parallel, or the included angle is less than 90 °, the magnetic attraction between the first magnetic member a and the second magnetic member b can also play a role in tightly attaching the second guide body 5 to the second guide wall 61.

The first magnetic member a and the second magnetic member b are not limited in type in the embodiments of the present disclosure, and in some examples, as shown in fig. 13 and 14, the first magnetic member a is a magnet, and the second magnetic member b is a magnetic conductive plate.

Wherein, the magnetic conduction plate is a metal plate made of magnetic conduction materials.

Of course, in other examples, the first magnetic member a may also be a magnetic conductive plate, and the second magnetic member b may also be a magnet, which is not particularly limited in this disclosure.

In some examples, as shown in fig. 14 and 15, the second guiding body 5 has a magnetic conductive material, and the second guiding wall 61 has a fourth magnetic member d (e.g., a magnet) on the lens carrier 2 (or the housing 1). The fourth magnetic member d is opposite to the second guide body 5, so that the second guide body 5 is closely attached to the second guide wall 61 under the magnetic attraction of the fourth magnetic member d and the second guide body 5.

In some examples, as shown in fig. 14, the direction of the magnetic attraction force between the fourth magnetic member d and the second guide body 5 coincides with the second direction Y, and thus, the second guide body 5 can be brought into close contact with the second guide wall 61. Since the first direction X and the second direction Y are parallel to each other or the included angle is smaller than 90 °, the fourth magnetic member d and the second guide body 5 can also function to make the first guide body 3 and the two first guide walls 41 tightly attached to each other.

In some examples, as shown in fig. 15, the first guide body 3 has a magnetic conductive material, and the lens carrier 2 (or the housing 1) on which the first guide wall 41 is located has a third magnetic member c (e.g., a magnet). The third magnetic member c is opposite to the first guide body 3, so that the first guide body 3 is closely attached to the two first guide walls 41 by the magnetic attraction of the third magnetic member c and the first guide body 3.

In some examples, as shown in fig. 15, the direction between the third magnetic member c and the first guide body 3 coincides with the first direction X, and therefore, the first guide body 3 can be brought into close contact with the two first guide walls 41. Since the first direction X and the second direction Y are parallel to each other or the included angle is smaller than 90 °, the third magnetic member c and the first guide body 3 can also have the function of tightly attaching the second guide body 5 to the second guide wall 61.

The three implementation manners described above may be used alone or in any combination.

For example, as shown in fig. 13, the base 11 has a first magnetic member a, the lens carrier 2 has a second magnetic member b, the first magnetic member a is opposite to the second magnetic member b, and both the first magnetic member a and the second magnetic member b are located at the first angle a.

For another example, as shown in fig. 14, the housing 1 has a first magnetic member a, the lens carrier 2 has a second magnetic member b, and the first magnetic member a and the second magnetic member b are opposed to each other. Under the action of the magnetic attraction of the first magnetic member a and the second magnetic member b, the first guide body 3 is tightly attached to the two first guide walls 41, and at the same time, a force is given to attach the second guide body 5 to the second guide wall 61. The second guide body 5 is made of a magnetic conductive material, the lens carrier 2 further has a fourth magnetic part d, the fourth magnetic part d is opposite to the second guide body 5, and under the action of magnetic attraction of the fourth magnetic part d and the second guide body 5, the second guide body 5 is tightly attached to the second guide wall 61, and meanwhile, force for attaching the first guide body 3 to the two first guide walls 41 is provided.

For another example, as shown in fig. 15, the first guide body 3 has a magnetic conductive material, the lens carrier 2 has a third magnetic member c, and the third magnetic member c is opposite to the first guide body 3, so that, under the action of the magnetic attraction between the third magnetic member c and the first guide body 3, the first guide body 3 is closely attached to the two first guide walls 41, and meanwhile, a force for attaching the second guide body 5 to the second guide wall 61 is also applied. The second guide body 5 is made of a magnetic conductive material, the lens carrier 2 is provided with a fourth magnetic part d, and the fourth magnetic part d is opposite to the second guide body 5, so that under the action of magnetic attraction of the fourth magnetic part d and the second guide body 5, the second guide body 5 is tightly attached to the second guide wall 61, and meanwhile, the force for attaching the first guide body 3 to the two first guide walls 41 is given.

The embodiment of the present disclosure does not limit the type of the driving member 7, and the following description is given by way of example:

in some examples, as shown in fig. 16, the drive component 7 is an electromagnetic drive component.

The electromagnetic driving component may be a Voice Coil Motor (VCM), but is not limited thereto.

In some examples, as shown in fig. 16, the electromagnetic driving means includes a driving magnet 71 and a driving coil 72, and the driving coil 72 is connected to a power supply, so that by adjusting the magnitude and direction of the current input to the driving coil 72, the magnitude and direction of the driving force received by the driving coil 72 (lens carrier 2) can be changed, and further, adjustment of the moving direction and moving speed of the lens carrier 2 is achieved.

The number of the drive magnets 71 and the drive coils 72 is not limited in the embodiment of the present disclosure, and in some examples, as shown in fig. 3, two drive magnets 71 are provided, and the two drive magnets 71 are fixedly connected to the housing 1. The two drive coils 72 are fixedly connected to the two opposite side walls of the lens carrier 2, and the two drive coils 72 are opposed to the two drive magnets 71, respectively.

In other examples, as shown in fig. 16, in order to make the force applied to the lens carrier 2 more uniform and reduce the inclination of the lens carrier 2, four driving magnets 71 are provided, and the four driving magnets 71 are fixedly connected to the housing 1. Four driving coils 72 are provided, and the four driving coils 72 are respectively fixedly connected to the four side walls of the lens carrier 2 and respectively face the four driving magnets 71.

In other examples, as shown in fig. 17, the driving part 7 is a piezoelectric driving part.

The piezoelectric driving component may be a piezoelectric ceramic driving component, but is not limited thereto.

In some examples, the piezoelectric driving part includes a piezoelectric ceramic and a resonator plate, and the resonator plate is connected to the piezoelectric ceramic. The piezoelectric ceramic is connected with a power supply and can generate regular telescopic deformation, and the resonance piece can amplify the deformation to generate regular action of shifting the lens carrier 2 up and down.

In other examples, as shown in fig. 18, the drive member 7 is a Shape Memory Alloy (SMA) drive member.

The shape memory alloy driving part drives the lens carrier 2 to move by utilizing the characteristic that the shape memory alloy wire can contract after being electrified.

The shape memory alloy component is connected with a power supply, and the shrinkage degree of the shape memory alloy component can be adjusted by adjusting the magnitude of current input into the shape memory alloy component, so that the lens carrier 2 is driven to move.

In the following, the motor provided by the embodiment of the present disclosure is exemplified in more detail with reference to the exploded view of the motor shown in fig. 19:

the motor includes a base 11, a housing 12, a lens carrier 2, a first guide body 3, a second guide body 5, a driving part 7, a circuit board 8, and a power supply reed 9.

The base 11 is an injection molding part with a circuit conduction function, the main body of the base 11 is a plastic part, and the electric part is formed by in-mold injection molding metal. The in-mold injection molding metal piece is welded with the circuit board 8, and an electric path is provided for controlling the circuit board 8.

The housing 12 is assembled on the base 11 to form the complete housing 1 and protect the internal components.

The lens carrier 2 is for carrying a lens. In some examples, the lens carrier 2 has an induction magnet 21 (e.g., a hall magnet), and the induction magnet 21 is capable of moving with the lens carrier 2, thereby generating a varying magnetic field, so that a displacement sensor located in the circuit board 8 on the base 11 can determine the moving position of the lens carrier 2 according to the varying magnetic field.

The first and second guide bodies 3 and 5 serve to provide path guidance for the movement of the lens carrier 2, so that the lens carrier 2 moves along the central axis. In some examples, the first guide body 3 and the second guide body 5 are both guide shafts.

The driving member 7 includes a driving magnet 71 and a driving coil 72. The driving magnet 71 is fixed on the base 11 and provides a magnetic field required for driving the lens carrier 2 to move. In some examples, as shown in fig. 20, the driving magnet 71 includes a magnet 711 and a yoke plate (yoke plate) 712, and the yoke plate 712 covers the outside of the magnet 711 and serves to converge magnetic induction lines of the magnet 711 and enhance magnetic induction intensity.

The driving coil 72 is fixed on the lens carrier 2, and when the driving coil 72 is energized, the moving charge is subjected to lorentz force in the magnetic field of the driving magnet 71, which is the driving force for moving the lens carrier 2. In some examples, the driving coil 72 is supplied with power through the power supply reed 9, and one end of the power supply reed 9 is connected to the circuit board 8 and the other end is electrically connected to the driving coil 72. The power supply spring 9 has elasticity and can accommodate the movement of the driving coil 72 relative to the circuit board 8 by being elastically deformed.

The circuit board 8 is disposed on the base 11, and may be a Flexible Printed Circuit (FPC). The circuit board 8 has a main circuit of the motor, and as shown in fig. 21, the circuit board 8 has an Integrated Circuit (IC) 81. The integrated circuit 81 is responsible for the control of the motor. In some examples, the integrated circuit 81 is integrated with a displacement sensor, such as a Hall sensor, which is located corresponding to the sensing magnet 21 on the lens carrier 2, so that the displacement sensor can determine information such as a moving position and a moving speed of the lens carrier 2 according to a change of a magnetic field induced by the sensing magnet 21.

The first magnetic member a and the second magnetic member b, one of which is disposed on the base 11 and the other of which is disposed on the lens carrier 2, are used to generate magnetic attraction, so that the first guide body 3 is closely attached to the two first guide walls 41, and the second guide body 5 is closely attached to the second guide wall 61.

The embodiment of the disclosure further provides a camera module, which comprises the motor and the lens, and the lens is fixed on the lens carrier 2 of the motor.

The embodiment of the disclosure also provides a terminal device, and the terminal device is provided with the camera module.

In some examples, the terminal device is a mobile phone, a tablet computer, and the like.

The terminology used in the description of the embodiments of the present disclosure is for the purpose of describing the embodiments of the present disclosure only and is not intended to be limiting of the present disclosure. Unless otherwise defined, technical or scientific terms used in the embodiments of the present disclosure should have the ordinary meaning as understood by those having ordinary skill in the art to which the present disclosure belongs. The use of "first," "second," and similar terms in the description and claims does not indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms a, an, etc. do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprise" or "comprises", and the like, means that the element or item listed before "comprises" or "comprising" covers the element or item listed after "comprising" or "comprises" and its equivalents, and does not exclude other elements or items. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, which may also change accordingly when the absolute position of the object being described changes. "plurality" means two or more unless explicitly defined otherwise.

The above description is intended only to illustrate the preferred embodiments of the present disclosure, and not to limit the present disclosure, and any modifications, equivalents, improvements, etc. made within the principle of the present disclosure should be included in the scope of the present disclosure.

Claims (19)

1. A motor, characterized by comprising a housing (1), a lens carrier (2), a first guide body (3), a first guide wall (41), a second guide body (5), a second guide wall (61) and a drive member (7);

the lens carrier (2) is located inside the housing (1), the lens carrier (2) having a first corner (A) and a second corner (B) in diagonal positions;

one of the first guide body (3) and the first guide wall (41) is located at a first corner (A) of the lens carrier (2), the other one of the first guide body and the first guide wall is located at the housing (1), two first guide walls (41) form an included angle, and both first guide walls are in contact with the first guide body (3);

one of the second guide body (5) and the second guide wall (61) is located at a second corner (B) of the lens carrier (2), and the other is located at the housing (1), the second guide wall (61) being in contact with the second guide body (5);

one of the first guide body (3) and the second guide body (5) is a guide shaft, the other one of the first guide body and the second guide body is a guide shaft or a guide ball, and the guide directions are parallel to the central axis of the lens carrier (2);

the driving component (7) is used for driving the lens carrier (2) to move along the central axis.

2. The motor according to claim 1, characterized in that the first guide body (3) is connected with the housing (1), the first guide wall (41) being located at a first corner (a) of the lens carrier (2);

the second guide body (5) is connected to the housing (1), and the second guide wall (61) is located at a second corner (B) of the lens carrier (2).

3. The motor according to claim 1 or 2, characterized in that both the first guide body (3) and the second guide body (5) are guide shafts.

4. A motor according to any one of claims 1-3, wherein a line between the first guide body (3) and the second guide body (5) intersects a central axis of the lens carrier (2).

5. The motor according to any of claims 1-4, characterized in that a first corner (A) of the housing (1) or the lens carrier (2) has a first guide groove (4);

the cross section of the first guide groove (4) is V-shaped, and two side walls of the first guide groove (4) form two first guide walls (41).

6. The motor according to any one of claims 1 to 5, wherein the housing (1) has a guide projection (6 a), the second corner (B) of the lens carrier (2) has a second guide groove (6B), and the guide projection (6 a) protrudes into the interior of the second guide groove (6B);

one of two opposite walls of the guide projection (6 a) and the second guide groove (6 b) is connected to the second guide body (5), and the other forms the second guide wall (61).

7. The motor according to any of claims 1 to 6, characterized in that the first guiding body (3) is a guiding shaft;

each first guide wall (41) comprises a first contact part (411), a first recess part (412) and a second contact part (413) in sequence along the axial direction of the first guide body (3);

the first contact portion (411) and the second contact portion (413) are both in contact with the first guide body (3).

8. The motor according to any of claims 1 to 7, characterized in that the second guiding body (5) is a guiding shaft;

the second guide wall (61) includes a second recess (611), a third contact portion (612), and a third recess (613) in this order in the axial direction of the second guide body (5);

the third contact portion (612) is in contact with the second guide body (5).

9. The motor according to any of the claims from 1 to 8, characterised in that the direction of the force of the two first guide walls (41) on the first guide body (3) is a first direction (X);

the direction of the acting force of the second guide wall (61) on the second guide body (5) is a second direction (Y);

the first direction (X) and the second direction (Y) are parallel and co-directional, or an included angle between the first direction (X) and the second direction (Y) is smaller than or equal to 90 degrees.

10. The motor according to claim 9, characterized in that said first direction (X), said second direction (Y) are perpendicular to the same side of said casing (1).

11. The motor according to any of the claims from 1 to 10, characterised in that said first guide body (3) and said two first guide walls (41), and said second guide body (5) and said second guide wall (61), are in close abutment under the action of magnetic attraction.

12. The motor according to claim 11, characterized in that the generation position of the magnetic attraction force is located at the first corner (a); or,

the magnetic attraction force is generated at two positions, one is positioned at the first corner (A), and the other is positioned at the second corner (B).

13. The motor according to claim 11 or 12, characterized in that the housing (1) has a first magnetic piece (a) and the lens carrier (2) has a second magnetic piece (b);

the first magnetic member (a) is opposed to the second magnetic member (b), and the magnetic attraction force, or a part of the magnetic attraction force, is generated between the first magnetic member (a) and the second magnetic member (b).

14. The motor according to any of the claims 11 to 13, characterized in that the first guide body (3) is made of magnetically permeable material, and the housing (1) or the lens carrier (2) on which the first guide wall (41) is located has a third magnetic part (c);

the third magnetic member (c) is opposite to the first guide body (3), and the magnetic attraction force, or a part of the magnetic attraction force, is generated between the third magnetic member (c) and the first guide body (3).

15. The motor according to any of the claims 11 to 14, characterized in that the second guide body (5) has magnetically conductive material, and the housing (1) or the lens carrier (2) on which the second guide wall (61) is located has a fourth magnetic part (d);

the fourth magnetic member (d) is opposite to the second guide body (5), and the magnetic attraction force, or a part of the magnetic attraction force, is generated between the fourth magnetic member (d) and the second guide body (5).

16. The motor according to any of claims 1-15, characterized in that the drive member (7) is an electromagnetic drive member, a shape memory alloy drive member or a piezoelectric drive member.

17. The motor according to any one of claims 1 to 15, wherein the drive member (7) includes a drive magnet (71) and a drive coil (72);

the number of the drive magnets (71) is four, and the four drive magnets (71) are fixedly connected with the shell (1);

the number of the driving coils (72) is four, and the four driving coils (72) are respectively fixedly connected with four side walls of the lens carrier (2) and respectively opposite to the four driving magnets (71).

18. A camera module, characterized in that it comprises a motor according to any one of claims 1-17 and a lens, which is fixed to a lens carrier (2) of the motor.

19. A terminal device characterized in that it has a camera module according to claim 18.

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