CN214586187U - Camera module - Google Patents

Abstract

A camera module (10), comprising: the mobile unit (12) comprises a lens module (14) and a carrier (16) connected with the lens module (14), wherein a first magnetic force acting piece (18) is arranged on the outer side of the carrier (16); and a fixed unit (20) including a base (22), and a second magnetic force acting member (24) and a piezoelectric driving device (26) provided on the base (22), adapted to receive the moving unit (12), the second magnetic force acting member (24) being disposed adjacent to and opposite to the first magnetic force acting member (18) and adapted to generate a magnetic force that brings the piezoelectric driving device (26) into abutment with the carrier (16), the piezoelectric driving device (26) being adapted to drive the moving unit (12) to move in the optical axis direction X.

Description

Camera module

Technical Field

The utility model relates to a camera module.

Background

With the rapid development of smart phones, Cell phone Camera modules (CCMs) are increasingly miniaturized, have low power consumption, low cost, high image quality, and the like, and are therefore widely applied to various new-generation portable Camera devices.

However, some existing camera modules implement movement of the lens module in the optical axis direction by an acting force between the driving device and the lens barrel during auto-focusing, which may result in less than ideal performance of the camera module.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a modified camera module.

To above purpose, the embodiment of the utility model provides a camera module is related to, include: the mobile unit comprises a lens module and a carrier connected with the lens module, wherein a first magnetic force acting piece is arranged on the outer side of the carrier; and the fixed unit comprises a base, a second magnetic force acting piece and a piezoelectric driving device, wherein the second magnetic force acting piece and the piezoelectric driving device are arranged on the base and are suitable for accommodating the moving unit, the second magnetic force acting piece is arranged adjacent to and opposite to the first magnetic force acting piece and is suitable for generating magnetic force for enabling the piezoelectric driving device to be abutted against the carrier, and the piezoelectric driving device is suitable for driving the moving unit to move along the optical axis direction X.

Optionally, the piezoelectric driving device includes a driving rod and a piezoelectric element disposed at one end of the driving rod, the driving rod abuts against the carrier, and the piezoelectric element is coupled to the base.

Optionally, an end of the piezoelectric element opposite to the end where the driving rod is located is provided with a weight member.

Optionally, the second magnetic force acting element includes a first magnetic body and a second magnetic body, and the first magnetic body and the second magnetic body are respectively correspondingly located at the left side and the right side of the piezoelectric driving device.

Optionally, the first magnetic force acting member is a first friction member, and the driving rod abuts against the first friction member.

Optionally, the first friction member has a reverse-folded portion that is reversely folded toward the inside of the carrier, and a reverse-folded angle of the reverse-folded portion is 70 degrees to 100 degrees.

Optionally, the drive rod is cylindrical, and the drive rod is tangent to the inflection.

Optionally, the first magnetic force acting element is a third magnetic body, a second friction element is arranged on the outer side of the carrier, and the driving rod abuts against the inner side of the second friction element.

Alternatively, the third magnetic body and the second friction member are opposed to each other.

Optionally, the second friction member has a bent portion protruding outward of the carrier, and a bent angle of the bent portion is 70 degrees to 100 degrees.

Optionally, the driving rod is cylindrical, and the driving rod is tangent to the bending part.

Optionally, the first magnetic force acting element is a third magnetic body, the third magnetic body includes a fourth magnetic body and a fifth magnetic body, the fourth magnetic body and the fifth magnetic body are respectively disposed adjacent to and opposite to the first magnetic body and the second magnetic body, a second friction element is disposed outside the carrier, and the driving rod is located inside the second friction element.

Optionally, the second friction member has a bent portion protruding outward of the carrier, and a bent angle of the bent portion is 70 degrees to 100 degrees.

Optionally, the driving rod is cylindrical, and the driving rod is tangent to the bending part.

Optionally, a first magnetic force F1 and a second magnetic force F2 exist between the first magnetic body and the first magnetic acting element, and a resultant force F3 of the first magnetic force F1 and the second magnetic force F2 causes the driving rod to abut against the carrier.

Optionally, the resultant force F3 is at an angle of 30 to 60 degrees to either of the first and second magnetic forces F1 and F2.

Optionally, the first magnetic force F1 and the second magnetic force F2 are perpendicular to each other, and the resultant force F3 is at an angle of 45 degrees to any one of the first magnetic force F1 and the second magnetic force F2.

Optionally, the carrier is provided with a groove on each of the left and right sides of the piezoelectric driving device.

Optionally, the groove is a rounded rectangular groove.

Optionally, each of the slots accommodates a guide, which is arranged on the base of the fixing unit.

Optionally, the guide is a guide post.

Optionally, the camera module includes a protective film covering a side surface of the lens module and an upper surface of the carrier.

Compared with the prior art, the utility model discloses camera module includes: the mobile unit comprises a lens module and a carrier connected with the lens module, wherein a first magnetic force acting piece is arranged on the outer side of the carrier; and the fixed unit comprises a base, a second magnetic force acting piece and a piezoelectric driving device, wherein the second magnetic force acting piece and the piezoelectric driving device are arranged on the base and are suitable for accommodating the moving unit, the second magnetic force acting piece is arranged adjacent to and opposite to the first magnetic force acting piece and is suitable for generating magnetic force for enabling the piezoelectric driving device to be abutted against the carrier, and the piezoelectric driving device is suitable for driving the moving unit to move along the optical axis direction X. So, can be favorable to guaranteeing the frictional force between piezoelectric drive device and the carrier through the magnetic force effect between second magnetic force effect piece and the first magnetic force effect piece, and then provide drive power to the carrier through piezoelectric drive device, order about the mobile unit and remove, produce inertial displacement along optical axis direction X, realize the auto focus of camera module to avoid the effect of direct force between drive arrangement and the lens section of thick bamboo to make camera module performance unsatisfactory.

Further, the piezoelectric driving device comprises a driving rod and a piezoelectric element arranged at one end of the driving rod, the driving rod abuts against the carrier, and the piezoelectric element is combined with the base, so that the driving rod of the piezoelectric driving device can provide driving force for the carrier to drive the moving unit to move along the optical axis direction X.

Furthermore, the end of the piezoelectric element opposite to the end where the driving rod is located is provided with a counterweight, so that the vibration deformation of the piezoelectric driving device can be favorably ensured to occur at the end where the driving rod is located.

Further, the first magnetic force acting element is a first friction element, and the driving rod abuts against the first friction element, so that a large friction force can be generated between the driving rod and the carrier, and a large driving force can be provided for the carrier by the piezoelectric driving device.

Further, the first friction member has a reverse folding portion which is reversely folded towards the inner side of the carrier, the reverse folding angle of the reverse folding portion is 70 degrees to 100 degrees, the driving rod is cylindrical, and the driving rod is tangent to the reverse folding portion, so that the driving rod can be helped to abut against the first friction member, and a piezoelectric driving device can be helped to provide large driving force for the carrier.

Further, the second friction piece is provided with a bending part protruding towards the outer side of the carrier, the bending angle of the bending part is 70-100 degrees, the driving rod is cylindrical, and the driving rod is tangent to the bending part, so that the driving rod can be abutted to the second friction piece, and the driving rod can be favorably transmitted to the second friction piece.

Further, the second magnetic force acting element comprises a first magnetic body and a second magnetic body, a first magnetic force F1 and a second magnetic force F2 exist between the first magnetic body and the second magnetic body and the first magnetic force acting element respectively, and a resultant force F3 of the first magnetic force F1 and the second magnetic force F2 enables the driving rod to abut against the carrier, so that the driving rod of the piezoelectric driving device can provide driving force for the carrier to drive the moving unit to move along the optical axis direction X.

Further, the first magnetic force F1 and the second magnetic force F2 are perpendicular to each other, and the angle between the resultant force F3 and any one of the first magnetic force F1 and the second magnetic force F2 is 45 degrees, which may be beneficial for large friction force between the piezoelectric driving device and the carrier.

Further, the carrier is provided with a groove on each of the left and right sides of the piezoelectric driving device, each of the grooves accommodates a guide member, and the guide members are respectively disposed on the base of the fixing unit, which can facilitate the moving unit to move smoothly during the auto-focusing process.

Further, the guide member is a guide post, which may facilitate the moving unit to smoothly perform a long-stroke movement.

Further, the camera module includes a protection film covering the side surface of the lens module and the upper surface of the carrier, which may be advantageous for protecting the mobile unit, such as water-proof, dust-proof, etc., while not hindering the mobile unit from moving in the optical axis direction X.

Where the technical conditions warrant, the subject matter of any independent claim in this application may be combined with any single subject matter or combination of subject matter recited in any dependent claims to form new claimed subject matter.

The present application will be further described with reference to the accompanying drawings. The same or similar reference numerals may be used to refer to the same or similar elements in different embodiments, and the description of the same or similar elements in different embodiments and the description of prior art elements, features, effects, etc. may be omitted.

Drawings

Fig. 1 is an exploded perspective schematic view of a camera module according to some embodiments of the present invention;

fig. 2 is a perspective view of the camera module of fig. 1 with the piezoelectric driving device abutting against the carrier of the moving unit;

FIG. 3 is a schematic top view of the camera module of FIG. 1 showing the piezoelectric actuator and the carrier in close contact with each other due to the magnetic force between the second magnetic force acting member and the first magnetic force acting member;

fig. 4 is a schematic top view illustrating a piezoelectric driving device abutting against a second friction member by a magnetic force between a second magnetic force acting member and a first magnetic force acting member of a camera module according to other embodiments of the present invention, wherein the magnetic force acting direction is shown; and

fig. 5 is a schematic view illustrating the direction of the magnetic force acting between the second magnetic force acting member and the first magnetic force acting member in fig. 3.

Detailed Description

Fig. 1 is an exploded perspective schematic view of a camera module according to some embodiments of the present invention. As shown in fig. 1, an embodiment of the present invention relates to a camera module 10, which includes a mobile unit 12 and a fixed unit 20.

The moving unit 12 includes a lens module 14 and a carrier 16 connected to the lens module 14, and a first magnetic force acting member 18 is disposed outside the carrier 16.

Fig. 2 is a perspective view of the camera module of fig. 1 with the piezoelectric driving device abutting against the carrier of the moving unit. As shown in fig. 1 and 2, the fixed unit 20 includes a base 22, and a second magnetic force acting member 24 and a piezoelectric driving device 26 provided on the base 22 and adapted to receive the moving unit 12. A second magnetic force acting member 24 is disposed adjacent to and opposite the first magnetic force acting member 18 and is adapted to generate a magnetic force that urges the piezoelectric drive device 26 against the carrier 16. The piezoelectric driving device 26 is adapted to drive the moving unit 12 to move in the optical axis direction X.

In this way, it is beneficial to ensure the friction between the piezo actuator 26 and the carrier 16 by the magnetic force between the second magnetic force acting element 24 and the first magnetic force acting element 18, so as to facilitate the piezoelectric actuator 26 to drive the moving unit 12 to move along the optical axis direction X.

In this context, "inner" and "outer" are both "inner" relatively close to the optical axis 13 and "outer" relatively far from the optical axis 13, with respect to the optical axis of the lens module 14.

The lens module 14 may include a lens (not shown) and a lens protector (not numbered). When the camera module 10 works, the piezoelectric driving device 26 abuts against the carrier 16 by the magnetic force generated between the first magnetic acting element 18 of the moving unit 12 and the second magnetic acting element 24 of the fixing unit 20, and the piezoelectric driving device 26 provides driving force to the carrier 16 to drive the moving unit 12 to move along the optical axis direction X to generate inertial displacement, thereby implementing auto-focusing of the camera module 10.

In the present invention, the base 22 of the fixing unit 20 may have any suitable configuration. For example, the base 22 may be an open-topped generally rectangular parallelepiped, the second magnetic force acting element 24 may be located on a side of the cuboid, and the piezoelectric drive 26 may be located at the intersection of either side of the cuboid.

Referring to fig. 2, alternatively, the piezoelectric actuator 26 includes an actuator rod 28 and a piezoelectric element 30 disposed at one end of the actuator rod 28, the actuator rod 28 abutting the carrier 16, and the piezoelectric element 30 engaging the base 22.

In this way, it is advantageous for the driving rod 28 of the piezoelectric driving device 26 to provide a driving force to the carrier 16 to drive the moving unit 12 to move along the optical axis direction X.

When a voltage is applied to the piezoelectric driving device 26, the piezoelectric element 30 repeats contraction and expansion vibrations, and the driving rod 28 transmits the vibration of the piezoelectric element 30 to the carrier 16, thereby driving the entire moving unit 12 to move in the optical axis direction X. The piezoelectric driving device 26 of the present invention may have any configuration as long as it can drive the moving unit 12 to move in the optical axis direction X.

Optionally, the end of the piezoelectric element 30 opposite to the end where the driving rod 28 is located is provided with a weight 31.

In this manner, it is advantageous to ensure that the vibrational deformation of the piezoelectric drive 26 occurs at the end where the drive rod 28 is located.

The piezoelectric element 30 and the weight element 31 may have any suitable configuration. For example, the piezoelectric element 30 and the weight member 31 may have substantially rectangular parallelepiped shapes corresponding to each other, and the weight member 31 may be located below the piezoelectric element 30.

The weight 31 may be provided on the base 22 (e.g., the bottom surface of the base 22) so as to secure the opposite end of the driving rod 28 of the piezoelectric driving device 26, ensuring that the vibrational deformation of the piezoelectric driving device 26 occurs at the end where the driving rod 28 is located.

The weight member 31 may be made of any suitable material. For example, the weight member 31 may contain tungsten element.

Fig. 3 is a schematic top view illustrating the piezoelectric driving device and the carrier in close contact with each other due to the magnetic force between the second magnetic force acting member and the first magnetic force acting member of the camera module shown in fig. 1. As shown in fig. 1 and 3, the second magnetic force acting element 24 may alternatively include a first magnetic body 32 and a second magnetic body 34, and the first magnetic body 32 and the second magnetic body 34 may be respectively located on the left and right sides of the piezoelectric driving device 26.

In the present invention, the first magnetic body 32 and the second magnetic body 34 may be any object that can generate a magnetic field as long as it can generate magnetic attraction to a magnetic material such as metal. For example, the first magnetic body 32 and the second magnetic body 34 may be substantially plate-shaped magnets. First magnetic body 32 and second magnetic body 34 may be arranged such that the S-pole and N-pole directions are aligned, respectively, e.g., the S-pole and N-pole directions are each toward the inside of base 22 or the S-pole and N-pole directions are each toward the outside of base 22, to avoid magnetic field interference therebetween.

Alternatively, the first magnetic force applying member 18 is a first friction member 36, and the driving rod 28 abuts against the first friction member 36.

In this manner, a large frictional force may be facilitated between drive rod 28 and carrier 16, which may help piezoelectric drive 26 provide a large driving force to carrier 16.

The first friction member 36 may have any suitable shape, for example it may be generally strip-shaped, may be made of a magnetic material, such as a metal or doped magnetic material, etc. The first friction member 36 may be disposed outside the carrier 16 via any suitable means. For example, the first friction member 36 may be disposed outside the carrier 16 by gluing, screw riveting, or the first friction member 36 may be integrally formed with the carrier 16.

Referring to fig. 3, the first friction member 36 may alternatively have a reverse-folded portion 38 that is reversely folded toward the inside of the carrier 16, and the reverse-folded angle θ 1 of the reverse-folded portion 38 may be 70 to 100 degrees.

Alternatively, drive rod 28 is cylindrical, and drive rod 28 is tangent to inflection 38.

In this manner, the drive rod 28 may be facilitated to abut against the first friction member 36, which may facilitate the piezoelectric drive 26 providing a large driving force to the carrier 16.

Fig. 4 is a schematic top view illustrating a piezoelectric driving device and a second friction member abutting against each other due to a magnetic force between a second magnetic force acting member and a first magnetic force acting member of a camera module according to other embodiments of the present invention, wherein a direction of the magnetic force is shown. As shown in fig. 4, the first magnetic force acting element 18 is a third magnetic body 40, a second friction element 42 is arranged outside the carrier 16, and the driving rod 28 abuts against the inside of the second friction element 42.

When the camera module 10 is in operation, the driving rod 28 abuts against the second friction member 42 due to the magnetic force generated between the first magnetic force acting element 18 of the moving unit 12 and the second magnetic force acting element 24 of the fixed unit 20, and the driving rod 28 transmits a driving force to the second friction member 42 to drive the moving unit 12 to move along the optical axis direction X to generate an inertial displacement, thereby implementing auto-focusing of the camera module 10.

The third magnetic body 40 may be any object capable of generating a magnetic field as long as it can generate a magnetic attraction force to a magnetic material such as a metal. For example, the third magnetic body 40 may be a magnet. The third magnetic body 40 may be disposed to be opposite to the direction of the S-pole and the N-pole of the first magnetic body 32 and the second magnetic body 34 of the second magnetic force acting member 24, respectively, and for example, may be disposed such that the S-pole and the N-pole of the third magnetic body 40 are adjacent to and opposite to the N-pole and the S-pole of the first magnetic body 32 and the second magnetic body 34, respectively, to generate a magnetic force between the third magnetic body 40 and the second magnetic force acting member 24 to bring the driving lever 28 into close contact with the second friction member 42.

The second friction member 42 may have any suitable shape, for example it may be generally strip-shaped. The second friction member 42 may be made of any suitable material as long as it can be abutted against the driving lever 28 by the magnetic force between the third magnetic body 40 and the second magnetic force acting member 24. The second friction member 42 may be disposed outside the carrier 16 via any suitable means. For example, the second friction member 42 may be provided outside the carrier 16 by gluing, screw riveting, or the second friction member 42 may be formed integrally with the carrier 16.

Alternatively, the third magnetic body 40 and the second friction member 42 are opposite to each other.

In this manner, a large frictional force between the second friction member 42 and the drive lever 28 may be facilitated.

Optionally, the second friction member 42 has a bent portion 48 protruding to the outside of the carrier 16, and the bent angle θ 2 of the bent portion 48 is 70 degrees to 100 degrees.

Alternatively, the drive lever 28 is cylindrical, and the drive lever 28 is tangent to the bent portion 48.

In this manner, drive rod 28 may be facilitated to abut second friction member 42, which may facilitate drive rod 28 transmitting a large driving force to second friction member 42.

Alternatively, the first magnetic force acting element 18 is a third magnetic body 40, the third magnetic body 40 includes a fourth magnetic body 44 and a fifth magnetic body 46, the fourth magnetic body 44 and the fifth magnetic body 46 are respectively disposed adjacent to and opposite to the first magnetic body 32 and the second magnetic body 34, the second friction member 42 is disposed outside the carrier 16, and the driving rod 28 is disposed inside the second friction member 42.

The fourth magnetic body 44 and the fifth magnetic body 46 may be any bodies capable of generating a magnetic field as long as they can generate a magnetic attraction force to a magnetic material such as a metal. For example, the fourth magnetic body 44 and the fifth magnetic body 46 may be plate-shaped magnets. The fourth and fifth magnetic bodies 44 and 46 may be disposed to be opposite in direction to the S-pole and the N-pole of the first and second magnetic bodies 32 and 34, respectively, and for example, the S-pole and the N-pole of the fourth and fifth magnetic bodies 44 and 46 may be disposed to be adjacent to and opposite to the N-pole and the S-pole of the first and second magnetic bodies 32 and 34, respectively, to generate magnetic forces between the fourth and fifth magnetic bodies 44 and 46 and the first and second magnetic bodies 32 and 34, respectively, to make the driving lever 28 and the second friction member 42 abut against each other.

Optionally, the second friction member 42 has a bent portion 48 protruding to the outside of the carrier 16, and the bent angle θ 2 of the bent portion 48 is 70 degrees to 100 degrees.

Alternatively, the drive lever 28 is cylindrical, and the drive lever 28 is tangent to the bent portion 48.

In this manner, drive rod 28 may be facilitated to abut second friction member 42, which may facilitate drive rod 28 transmitting a large driving force to second friction member 42.

Fig. 5 is a schematic view illustrating the direction of the magnetic force acting between the second magnetic force acting member and the first magnetic force acting member in fig. 3. Referring to fig. 4 and 5, alternatively, a first magnetic force F1 and a second magnetic force F2 exist between the first magnetic body 32 and the second magnetic body 34 and the first magnetic acting element 18, respectively, and a resultant force F3 of the first magnetic force F1 and the second magnetic force F2 causes the driving rod 28 to abut against the carrier 16.

In this way, it is advantageous for the driving rod 28 of the piezoelectric driving device 26 to provide a driving force to the carrier 16 to drive the moving unit 12 to move along the optical axis direction X.

Optionally, the resultant force F3 has an angle θ 3 of 30 to 60 degrees with any one of the first and second magnetic forces F1 and F2.

Optionally, the first magnetic force F1 and the second magnetic force F2 are perpendicular to each other, and the resultant force F3 has an angle θ 3 of 45 degrees with any one of the first magnetic force F1 and the second magnetic force F2.

In this manner, a high friction between the piezoelectric driver 26 and the carrier 16 may be facilitated.

Referring again to fig. 1-3, optionally, the carrier 16 is provided with a slot 50 on each of the left and right sides of the piezoelectric actuator 26.

Optionally, the slot 50 is a rounded rectangular groove.

Optionally, one guide 52 is received in each of the slots 50, the guides 52 each being disposed on the base 22 of the stationary unit 20.

In this manner, smooth movement of the moving unit 12 during the auto-focusing process may be facilitated.

Optionally, the guide 52 is a guide post.

In this manner, smooth long-stroke movement of the moving unit 12 can be facilitated.

In the present invention, the moving stroke of the moving unit 12 is not less than 1500 μm.

Referring to fig. 1 again, optionally, the camera module 10 includes a protective film 17 covering the side surface of the lens module 14 and the upper surface of the carrier 16.

In this manner, it is possible to facilitate protection of the moving unit 12, such as waterproofing, dustproofing, and the like, while not hindering the moving unit 12 from moving in the optical axis direction X.

The protective film 17 may have gas permeability, for example it may be a gas permeable film. The protective film 17 may connect the carrier 16 of the mobile unit 12 and the lens module 14 and may have a shape substantially corresponding to the carrier 16.

Optionally, the camera module 10 may include a housing 19. The housing 19 may be adapted to house the mobile unit 12, the stationary unit 20, and the protective membrane 17, and provide protection (e.g., water resistance, damage resistance, etc.) to the mobile unit 12, the stationary unit 20, and the protective membrane 17, among other things. The housing 19 may have any suitable configuration. For example, the housing 19 may have a substantially rectangular parallelepiped shape having an opening at the top, and the lens module 14 of the moving unit 12 may move in the optical axis direction X to pass through the opening.

The various embodiments described above and shown in the drawings are illustrative of the invention and are not intended to be all-inclusive. In the scope of the basic technical idea of the present invention, a person skilled in the relevant technical field can easily change the position of the object to be protected.

Claims (22)

1. A camera module (10), comprising:

the mobile unit (12) comprises a lens module (14) and a carrier (16) connected with the lens module (14), wherein a first magnetic force acting piece (18) is arranged on the outer side of the carrier (16); and

a fixed unit (20) comprising a base (22), a second magnetic force acting member (24) and a piezoelectric driving device (26) arranged on the base (22), and adapted to accommodate the mobile unit (12), the second magnetic force acting member (24) being arranged adjacent to and opposite to the first magnetic force acting member (18) and adapted to generate a magnetic force for abutting the piezoelectric driving device (26) against the carrier (16), the piezoelectric driving device (26) being adapted to drive the mobile unit (12) to move along the optical axis direction X.

2. The camera module (10) of claim 1, wherein the piezoelectric actuator (26) includes an actuating rod (28) and a piezoelectric element (30) disposed at an end of the actuating rod (28), the actuating rod (28) abutting the carrier (16), the piezoelectric element (30) engaging the base (22).

3. A camera module (10) according to claim 2, characterized in that the end of the piezoelectric element (30) opposite to the end where the driving rod (28) is located is provided with a weight member (31).

4. The camera module (10) according to claim 2 or 3, wherein the second magnetic force acting member (24) comprises a first magnetic body (32) and a second magnetic body (34), and the first magnetic body (32) and the second magnetic body (34) are respectively located at the left and right sides of the piezoelectric driving device (26).

5. The camera module (10) of claim 4, wherein the first magnetic force acting member (18) is a first friction member (36), and the driving rod (28) abuts against the first friction member (36).

6. The camera module (10) according to claim 5, wherein the first friction member (36) has a folded back portion (38) folded back toward the inside of the carrier (16), and a folded back angle (θ 1) of the folded back portion (38) is 70 degrees to 100 degrees.

7. The camera module (10) of claim 6, wherein the drive rod (28) is cylindrical, and wherein the drive rod (28) is tangential to the inflection (38).

8. The camera module (10) according to claim 2 or 3, wherein the first magnetic force acting member (18) is a third magnetic body (40), a second friction member (42) is provided outside the carrier (16), and the driving rod (28) abuts against the inside of the second friction member (42).

9. The camera module (10) according to claim 8, wherein the third magnetic body (40) and the second friction member (42) are opposed to each other.

10. The camera module (10) according to claim 9, wherein the second friction member (42) has a bent portion (48) protruding to an outside of the carrier (16), and a bent angle (θ 2) of the bent portion (48) is 70 degrees to 100 degrees.

11. The camera module (10) of claim 10, wherein the driving lever (28) is cylindrical, and the driving lever (28) is tangent to the bending portion (48).

12. The camera module (10) according to claim 4, wherein the first magnetic force acting member (18) is a third magnetic body (40), the third magnetic body (40) comprises a fourth magnetic body (44) and a fifth magnetic body (46), the fourth magnetic body (44) and the fifth magnetic body (46) are respectively arranged adjacent to and opposite to the first magnetic body (32) and the second magnetic body (34), a second friction member (42) is arranged outside the carrier (16), and the driving rod (28) is arranged inside the second friction member (42).

13. The camera module (10) according to claim 12, wherein the second friction member (42) has a bent portion (48) protruding to an outside of the carrier (16), and a bent angle (θ 2) of the bent portion (48) is 70 degrees to 100 degrees.

14. The camera module (10) of claim 13, wherein the driving lever (28) is cylindrical, and the driving lever (28) is tangent to the bending portion (48).

15. The camera module (10) according to claim 4, wherein a first magnetic force F1 and a second magnetic force F2 exist between the first magnetic body (32) and the second magnetic body (34) and the first magnetic acting member (18), respectively, and a resultant force F3 of the first magnetic force F1 and the second magnetic force F2 causes the driving lever (28) to abut against the carrier (16).

16. The camera module (10) of claim 15, wherein the resultant force F3 is at an angle (θ 3) of 30 to 60 degrees from either of the first and second magnetic forces F1 and F2.

17. The camera module (10) according to claim 16, wherein the first magnetic force F1 and the second magnetic force F2 are perpendicular to each other, and the resultant force F3 has an angle (θ 3) of 45 degrees with respect to any one of the first magnetic force F1 and the second magnetic force F2.

18. The camera module (10) according to claim 1, wherein the carrier (16) is provided with a groove (50) on each of the left and right sides of the piezoelectric actuator (26).

19. The camera module (10) of claim 18, wherein the slot (50) is a rounded rectangular groove.

20. The camera module (10) according to claim 18, wherein one guide member (52) is accommodated in each of the slots (50), the guide members (52) being provided on the base (22) of the fixing unit (20) respectively.

21. The camera module (10) of claim 20, wherein the guide (52) is a guide post.

22. The camera module (10) according to claim 1, characterized by comprising a protective film (17) covering the side surfaces of the lens module (14) and the upper surface of the carrier (16).

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